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0a8de364ff
75245 Commits
Author | SHA1 | Message | Date | |
---|---|---|---|---|
Eric Dumazet
|
0a8de364ff |
tcp: no longer abort SYN_SENT when receiving some ICMP
Currently, non fatal ICMP messages received on behalf of SYN_SENT sockets do call tcp_ld_RTO_revert() to implement RFC 6069, but immediately call tcp_done(), thus aborting the connect() attempt. This violates RFC 1122 following requirement: 4.2.3.9 ICMP Messages ... o Destination Unreachable -- codes 0, 1, 5 Since these Unreachable messages indicate soft error conditions, TCP MUST NOT abort the connection, and it SHOULD make the information available to the application. This patch makes sure non 'fatal' ICMP[v6] messages do not abort the connection attempt. It enables RFC 6069 for SYN_SENT sockets as a result. Signed-off-by: Eric Dumazet <edumazet@google.com> Cc: David Morley <morleyd@google.com> Cc: Neal Cardwell <ncardwell@google.com> Cc: Yuchung Cheng <ycheng@google.com> Signed-off-by: David S. Miller <davem@davemloft.net> |
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Eric Dumazet
|
14dd92d0a1 |
tcp: use tp->total_rto to track number of linear timeouts in SYN_SENT state
In commit
|
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Paolo Abeni
|
56eddc3cb1 |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Cross-merge networking fixes after downstream PR. No conflicts. Signed-off-by: Paolo Abeni <pabeni@redhat.com> |
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Paolo Abeni
|
cff088d924 |
netfilter pull request 23-11-15
-----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEN9lkrMBJgcdVAPub1V2XiooUIOQFAmVVD/4ACgkQ1V2XiooU IOQegA/9FUHHllNsrk0hUWKeH+1P54jExmKlIhSfwUJ3RptehF0ARb3uQb0rVPuM DwpaMVZ1lhL3TzcFy1HeCNFU6mKxqKhlvzDYvbRcfbNE96eL7l5RfJwWh0UViwWI wUtZhznHE6ygdZJ8TZUA+b5vuZkihO2ZNc7rpuBimCQGEXqZfoOpNFVSoNBsWvL5 3s/qq7ai6rl34ipVlPpFO7Gk94EHHMwa4BhGfTNVRSrG2B9EcPAMAOKVDBCPrGST CdVkkn79ajNUhiKSkD3/JC4fMDavT6ZEIzUMFfwIdF1b7Q+5F64lbZaD5gD2bO30 QAk7ttgq951XnQpLfXC4H4vHdf65GeeYLPSuLqyo/rnkr/+h+hCgnorBwZrzrG3D mbqQtUZOsJjrH6vcExuHwlM1LEOSGbGuI/zjSTEXEJG8M3qngxXCeMQun2fB8IIN yTB40SPUhvKlR6JdfJRou/WJj9eKZmyuaWP2MaQT7LFftttt24Ndluoo5KCx92IZ 9LmCm8h93oWKRFAxk3NQQCZbbW0RW8Af+gbmnRI2TjtyDpNrnzPhR3fjopD9wqJH xMuW5xeTjqdjFR7jvAaYPnnFOOk0vA0JlZlBNmmNIqp04+BmD4RTVqmqwzNCjHvm KqqWGjKOEYOWN2OJawaqu6V5cU0/untb2OG2b5WAhDycF/CnxA0= =lwne -----END PGP SIGNATURE----- Merge tag 'nf-23-11-15' of git://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf Pablo Neira Ayuso says: ==================== Netfilter fixes for net The following patchset contains Netfilter fixes for net: 1) Remove unused variable causing compilation warning in nft_set_rbtree, from Yang Li. This unused variable is a left over from previous merge window. 2) Possible return of uninitialized in nf_conntrack_bridge, from Linkui Xiao. This is there since nf_conntrack_bridge is available. 3) Fix incorrect pointer math in nft_byteorder, from Dan Carpenter. Problem has been there since 2016. 4) Fix bogus error in destroy set element command. Problem is there since this new destroy command was added. 5) Fix race condition in ipset between swap and destroy commands and add/del/test control plane. This problem is there since ipset was merged. 6) Split async and sync catchall GC in two function to fix unsafe iteration over RCU. This is a fix-for-fix that was included in the previous pull request. * tag 'nf-23-11-15' of git://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf: netfilter: nf_tables: split async and sync catchall in two functions netfilter: ipset: fix race condition between swap/destroy and kernel side add/del/test netfilter: nf_tables: bogus ENOENT when destroying element which does not exist netfilter: nf_tables: fix pointer math issue in nft_byteorder_eval() netfilter: nf_conntrack_bridge: initialize err to 0 netfilter: nft_set_rbtree: Remove unused variable nft_net ==================== Link: https://lore.kernel.org/r/20231115184514.8965-1-pablo@netfilter.org Signed-off-by: Paolo Abeni <pabeni@redhat.com> |
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Xin Long
|
7cd5af0e93 |
net: sched: do not offload flows with a helper in act_ct
There is no hardware supporting ct helper offload. However, prior to this
patch, a flower filter with a helper in the ct action can be successfully
set into the HW, for example (eth1 is a bnxt NIC):
# tc qdisc add dev eth1 ingress_block 22 ingress
# tc filter add block 22 proto ip flower skip_sw ip_proto tcp \
dst_port 21 ct_state -trk action ct helper ipv4-tcp-ftp
# tc filter show dev eth1 ingress
filter block 22 protocol ip pref 49152 flower chain 0 handle 0x1
eth_type ipv4
ip_proto tcp
dst_port 21
ct_state -trk
skip_sw
in_hw in_hw_count 1 <----
action order 1: ct zone 0 helper ipv4-tcp-ftp pipe
index 2 ref 1 bind 1
used_hw_stats delayed
This might cause the flower filter not to work as expected in the HW.
This patch avoids this problem by simply returning -EOPNOTSUPP in
tcf_ct_offload_act_setup() to not allow to offload flows with a helper
in act_ct.
Fixes:
|
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Gal Pressman
|
674e318089 |
net: Fix undefined behavior in netdev name allocation
Cited commit removed the strscpy() call and kept the snprintf() only.
It is common to use 'dev->name' as the format string before a netdev is
registered, this results in 'res' and 'name' pointers being equal.
According to POSIX, if copying takes place between objects that overlap
as a result of a call to sprintf() or snprintf(), the results are
undefined.
Add back the strscpy() and use 'buf' as an intermediate buffer.
Fixes:
|
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Jakub Kicinski
|
e316dd1cf1 |
net: don't dump stack on queue timeout
The top syzbot report for networking (#14 for the entire kernel) is the queue timeout splat. We kept it around for a long time, because in real life it provides pretty strong signal that something is wrong with the driver or the device. Removing it is also likely to break monitoring for those who track it as a kernel warning. Nevertheless, WARN()ings are best suited for catching kernel programming bugs. If a Tx queue gets starved due to a pause storm, priority configuration, or other weirdness - that's obviously a problem, but not a problem we can fix at the kernel level. Bite the bullet and convert the WARN() to a print. Before: NETDEV WATCHDOG: eni1np1 (netdevsim): transmit queue 0 timed out 1975 ms WARNING: CPU: 0 PID: 0 at net/sched/sch_generic.c:525 dev_watchdog+0x39e/0x3b0 [... completely pointless stack trace of a timer follows ...] Now: netdevsim netdevsim1 eni1np1: NETDEV WATCHDOG: CPU: 0: transmit queue 0 timed out 1769 ms Alternatively we could mark the drivers which syzbot has learned to abuse as "print-instead-of-WARN" selectively. Reported-by: syzbot+d55372214aff0faa1f1f@syzkaller.appspotmail.com Reviewed-by: Jiri Pirko <jiri@nvidia.com> Reviewed-by: Eric Dumazet <edumazet@google.com> Reviewed-by: Jamal Hadi Salim <jhs@mojatatu.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net> |
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Johnathan Mantey
|
9e2e7efbbb |
Revert ncsi: Propagate carrier gain/loss events to the NCSI controller
This reverts commit |
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Paolo Abeni
|
7679d34f97 |
mptcp: fix setsockopt(IP_TOS) subflow locking
The MPTCP implementation of the IP_TOS socket option uses the lockless
variant of the TOS manipulation helper and does not hold such lock at
the helper invocation time.
Add the required locking.
Fixes:
|
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Geliang Tang
|
8df220b292 |
mptcp: add validity check for sending RM_ADDR
This patch adds the validity check for sending RM_ADDRs for userspace PM
in mptcp_pm_remove_addrs(), only send a RM_ADDR when the address is in the
anno_list or conn_list.
Fixes:
|
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Paolo Abeni
|
d109a77672 |
mptcp: fix possible NULL pointer dereference on close
After the blamed commit below, the MPTCP release callback can
dereference the first subflow pointer via __mptcp_set_connected()
and send buffer auto-tuning. Such pointer is always expected to be
valid, except at socket destruction time, when the first subflow is
deleted and the pointer zeroed.
If the connect event is handled by the release callback while the
msk socket is finally released, MPTCP hits the following splat:
general protection fault, probably for non-canonical address 0xdffffc00000000f2: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x0000000000000790-0x0000000000000797]
CPU: 1 PID: 26719 Comm: syz-executor.2 Not tainted 6.6.0-syzkaller-10102-gff269e2cd5ad #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
RIP: 0010:mptcp_subflow_ctx net/mptcp/protocol.h:542 [inline]
RIP: 0010:__mptcp_propagate_sndbuf net/mptcp/protocol.h:813 [inline]
RIP: 0010:__mptcp_set_connected+0x57/0x3e0 net/mptcp/subflow.c:424
RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff8a62323c
RDX: 00000000000000f2 RSI: ffffffff8a630116 RDI: 0000000000000790
RBP: ffff88803334b100 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000034 R12: ffff88803334b198
R13: ffff888054f0b018 R14: 0000000000000000 R15: ffff88803334b100
FS: 0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fbcb4f75198 CR3: 000000006afb5000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<TASK>
mptcp_release_cb+0xa2c/0xc40 net/mptcp/protocol.c:3405
release_sock+0xba/0x1f0 net/core/sock.c:3537
mptcp_close+0x32/0xf0 net/mptcp/protocol.c:3084
inet_release+0x132/0x270 net/ipv4/af_inet.c:433
inet6_release+0x4f/0x70 net/ipv6/af_inet6.c:485
__sock_release+0xae/0x260 net/socket.c:659
sock_close+0x1c/0x20 net/socket.c:1419
__fput+0x270/0xbb0 fs/file_table.c:394
task_work_run+0x14d/0x240 kernel/task_work.c:180
exit_task_work include/linux/task_work.h:38 [inline]
do_exit+0xa92/0x2a20 kernel/exit.c:876
do_group_exit+0xd4/0x2a0 kernel/exit.c:1026
get_signal+0x23ba/0x2790 kernel/signal.c:2900
arch_do_signal_or_restart+0x90/0x7f0 arch/x86/kernel/signal.c:309
exit_to_user_mode_loop kernel/entry/common.c:168 [inline]
exit_to_user_mode_prepare+0x11f/0x240 kernel/entry/common.c:204
__syscall_exit_to_user_mode_work kernel/entry/common.c:285 [inline]
syscall_exit_to_user_mode+0x1d/0x60 kernel/entry/common.c:296
do_syscall_64+0x4b/0x110 arch/x86/entry/common.c:88
entry_SYSCALL_64_after_hwframe+0x63/0x6b
RIP: 0033:0x7fb515e7cae9
Code: Unable to access opcode bytes at 0x7fb515e7cabf.
RSP: 002b:00007fb516c560c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: 000000000000003c RBX: 00007fb515f9c120 RCX: 00007fb515e7cae9
RDX: 0000000000000000 RSI: 0000000020000140 RDI: 0000000000000006
RBP: 00007fb515ec847a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000006e R14: 00007fb515f9c120 R15: 00007ffc631eb968
</TASK>
To avoid sparkling unneeded conditionals, address the issue explicitly
checking msk->first only in the critical place.
Fixes:
|
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Paolo Abeni
|
9fce92f050 |
mptcp: deal with large GSO size
After the blamed commit below, the TCP sockets (and the MPTCP subflows)
can build egress packets larger than 64K. That exceeds the maximum DSS
data size, the length being misrepresent on the wire and the stream being
corrupted, as later observed on the receiver:
WARNING: CPU: 0 PID: 9696 at net/mptcp/protocol.c:705 __mptcp_move_skbs_from_subflow+0x2604/0x26e0
CPU: 0 PID: 9696 Comm: syz-executor.7 Not tainted 6.6.0-rc5-gcd8bdf563d46 #45
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.11.0-2.el7 04/01/2014
netlink: 8 bytes leftover after parsing attributes in process `syz-executor.4'.
RIP: 0010:__mptcp_move_skbs_from_subflow+0x2604/0x26e0 net/mptcp/protocol.c:705
RSP: 0018:ffffc90000006e80 EFLAGS: 00010246
RAX: ffffffff83e9f674 RBX: ffff88802f45d870 RCX: ffff888102ad0000
netlink: 8 bytes leftover after parsing attributes in process `syz-executor.4'.
RDX: 0000000080000303 RSI: 0000000000013908 RDI: 0000000000003908
RBP: ffffc90000007110 R08: ffffffff83e9e078 R09: 1ffff1100e548c8a
R10: dffffc0000000000 R11: ffffed100e548c8b R12: 0000000000013908
R13: dffffc0000000000 R14: 0000000000003908 R15: 000000000031cf29
FS: 00007f239c47e700(0000) GS:ffff88811b200000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f239c45cd78 CR3: 000000006a66c006 CR4: 0000000000770ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600
PKRU: 55555554
Call Trace:
<IRQ>
mptcp_data_ready+0x263/0xac0 net/mptcp/protocol.c:819
subflow_data_ready+0x268/0x6d0 net/mptcp/subflow.c:1409
tcp_data_queue+0x21a1/0x7a60 net/ipv4/tcp_input.c:5151
tcp_rcv_established+0x950/0x1d90 net/ipv4/tcp_input.c:6098
tcp_v6_do_rcv+0x554/0x12f0 net/ipv6/tcp_ipv6.c:1483
tcp_v6_rcv+0x2e26/0x3810 net/ipv6/tcp_ipv6.c:1749
ip6_protocol_deliver_rcu+0xd6b/0x1ae0 net/ipv6/ip6_input.c:438
ip6_input+0x1c5/0x470 net/ipv6/ip6_input.c:483
ipv6_rcv+0xef/0x2c0 include/linux/netfilter.h:304
__netif_receive_skb+0x1ea/0x6a0 net/core/dev.c:5532
process_backlog+0x353/0x660 net/core/dev.c:5974
__napi_poll+0xc6/0x5a0 net/core/dev.c:6536
net_rx_action+0x6a0/0xfd0 net/core/dev.c:6603
__do_softirq+0x184/0x524 kernel/softirq.c:553
do_softirq+0xdd/0x130 kernel/softirq.c:454
Address the issue explicitly bounding the maximum GSO size to what MPTCP
actually allows.
Reported-by: Christoph Paasch <cpaasch@apple.com>
Closes: https://github.com/multipath-tcp/mptcp_net-next/issues/450
Fixes:
|
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Florian Fainelli
|
8fedaaca40 |
net: dsa: tag_rtl4_a: Use existing ETH_P_REALTEK constant
No functional change, uses the existing ETH_P_REALTEK constant already defined in if_ether.h. Signed-off-by: Florian Fainelli <florian.fainelli@broadcom.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Reviewed-by: Vladimir Oltean <vladimir.oltean@nxp.com> Link: https://lore.kernel.org/r/20231113165030.2440083-1-florian.fainelli@broadcom.com Signed-off-by: Jakub Kicinski <kuba@kernel.org> |
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Pablo Neira Ayuso
|
8837ba3e58 |
netfilter: nf_tables: split async and sync catchall in two functions
list_for_each_entry_safe() does not work for the async case which runs
under RCU, therefore, split GC logic for catchall in two functions
instead, one for each of the sync and async GC variants.
The catchall sync GC variant never sees a _DEAD bit set on ever, thus,
this handling is removed in such case, moreover, allocate GC sync batch
via GFP_KERNEL.
Fixes:
|
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Jozsef Kadlecsik
|
28628fa952 |
netfilter: ipset: fix race condition between swap/destroy and kernel side add/del/test
Linkui Xiao reported that there's a race condition when ipset swap and destroy is called, which can lead to crash in add/del/test element operations. Swap then destroy are usual operations to replace a set with another one in a production system. The issue can in some cases be reproduced with the script: ipset create hash_ip1 hash:net family inet hashsize 1024 maxelem 1048576 ipset add hash_ip1 172.20.0.0/16 ipset add hash_ip1 192.168.0.0/16 iptables -A INPUT -m set --match-set hash_ip1 src -j ACCEPT while [ 1 ] do # ... Ongoing traffic... ipset create hash_ip2 hash:net family inet hashsize 1024 maxelem 1048576 ipset add hash_ip2 172.20.0.0/16 ipset swap hash_ip1 hash_ip2 ipset destroy hash_ip2 sleep 0.05 done In the race case the possible order of the operations are CPU0 CPU1 ip_set_test ipset swap hash_ip1 hash_ip2 ipset destroy hash_ip2 hash_net_kadt Swap replaces hash_ip1 with hash_ip2 and then destroy removes hash_ip2 which is the original hash_ip1. ip_set_test was called on hash_ip1 and because destroy removed it, hash_net_kadt crashes. The fix is to force ip_set_swap() to wait for all readers to finish accessing the old set pointers by calling synchronize_rcu(). The first version of the patch was written by Linkui Xiao <xiaolinkui@kylinos.cn>. v2: synchronize_rcu() is moved into ip_set_swap() in order not to burden ip_set_destroy() unnecessarily when all sets are destroyed. v3: Florian Westphal pointed out that all netfilter hooks run with rcu_read_lock() held and em_ipset.c wraps the entire ip_set_test() in rcu read lock/unlock pair. So there's no need to extend the rcu read locked area in ipset itself. Closes: https://lore.kernel.org/all/69e7963b-e7f8-3ad0-210-7b86eebf7f78@netfilter.org/ Reported by: Linkui Xiao <xiaolinkui@kylinos.cn> Signed-off-by: Jozsef Kadlecsik <kadlec@netfilter.org> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org> |
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Pablo Neira Ayuso
|
a7d5a955bf |
netfilter: nf_tables: bogus ENOENT when destroying element which does not exist
destroy element command bogusly reports ENOENT in case a set element
does not exist. ENOENT errors are skipped, however, err is still set
and propagated to userspace.
# nft destroy element ip raw BLACKLIST { 1.2.3.4 }
Error: Could not process rule: No such file or directory
destroy element ip raw BLACKLIST { 1.2.3.4 }
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Fixes:
|
||
Dan Carpenter
|
c301f0981f |
netfilter: nf_tables: fix pointer math issue in nft_byteorder_eval()
The problem is in nft_byteorder_eval() where we are iterating through a loop and writing to dst[0], dst[1], dst[2] and so on... On each iteration we are writing 8 bytes. But dst[] is an array of u32 so each element only has space for 4 bytes. That means that every iteration overwrites part of the previous element. I spotted this bug while reviewing commit |
||
Linkui Xiao
|
a44af08e3d |
netfilter: nf_conntrack_bridge: initialize err to 0
K2CI reported a problem:
consume_skb(skb);
return err;
[nf_br_ip_fragment() error] uninitialized symbol 'err'.
err is not initialized, because returning 0 is expected, initialize err
to 0.
Fixes:
|
||
Yang Li
|
67059b6159 |
netfilter: nft_set_rbtree: Remove unused variable nft_net
The code that uses nft_net has been removed, and the nft_pernet function is merely obtaining a reference to shared data through the net pointer. The content of the net pointer is not modified or changed, so both of them should be removed. silence the warning: net/netfilter/nft_set_rbtree.c:627:26: warning: variable ‘nft_net’ set but not used Reported-by: Abaci Robot <abaci@linux.alibaba.com> Closes: https://bugzilla.openanolis.cn/show_bug.cgi?id=7103 Signed-off-by: Yang Li <yang.lee@linux.alibaba.com> Reviewed-by: Simon Horman <horms@kernel.org> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org> |
||
Eric Dumazet
|
4b7b492615 |
af_unix: fix use-after-free in unix_stream_read_actor()
syzbot reported the following crash [1]
After releasing unix socket lock, u->oob_skb can be changed
by another thread. We must temporarily increase skb refcount
to make sure this other thread will not free the skb under us.
[1]
BUG: KASAN: slab-use-after-free in unix_stream_read_actor+0xa7/0xc0 net/unix/af_unix.c:2866
Read of size 4 at addr ffff88801f3b9cc4 by task syz-executor107/5297
CPU: 1 PID: 5297 Comm: syz-executor107 Not tainted 6.6.0-syzkaller-15910-gb8e3a87a627b #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
Call Trace:
<TASK>
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0xd9/0x1b0 lib/dump_stack.c:106
print_address_description mm/kasan/report.c:364 [inline]
print_report+0xc4/0x620 mm/kasan/report.c:475
kasan_report+0xda/0x110 mm/kasan/report.c:588
unix_stream_read_actor+0xa7/0xc0 net/unix/af_unix.c:2866
unix_stream_recv_urg net/unix/af_unix.c:2587 [inline]
unix_stream_read_generic+0x19a5/0x2480 net/unix/af_unix.c:2666
unix_stream_recvmsg+0x189/0x1b0 net/unix/af_unix.c:2903
sock_recvmsg_nosec net/socket.c:1044 [inline]
sock_recvmsg+0xe2/0x170 net/socket.c:1066
____sys_recvmsg+0x21f/0x5c0 net/socket.c:2803
___sys_recvmsg+0x115/0x1a0 net/socket.c:2845
__sys_recvmsg+0x114/0x1e0 net/socket.c:2875
do_syscall_x64 arch/x86/entry/common.c:51 [inline]
do_syscall_64+0x3f/0x110 arch/x86/entry/common.c:82
entry_SYSCALL_64_after_hwframe+0x63/0x6b
RIP: 0033:0x7fc67492c559
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 51 18 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fc6748ab228 EFLAGS: 00000246 ORIG_RAX: 000000000000002f
RAX: ffffffffffffffda RBX: 000000000000001c RCX: 00007fc67492c559
RDX: 0000000040010083 RSI: 0000000020000140 RDI: 0000000000000004
RBP: 00007fc6749b6348 R08: 00007fc6748ab6c0 R09: 00007fc6748ab6c0
R10: 0000000000000000 R11: 0000000000000246 R12: 00007fc6749b6340
R13: 00007fc6749b634c R14: 00007ffe9fac52a0 R15: 00007ffe9fac5388
</TASK>
Allocated by task 5295:
kasan_save_stack+0x33/0x50 mm/kasan/common.c:45
kasan_set_track+0x25/0x30 mm/kasan/common.c:52
__kasan_slab_alloc+0x81/0x90 mm/kasan/common.c:328
kasan_slab_alloc include/linux/kasan.h:188 [inline]
slab_post_alloc_hook mm/slab.h:763 [inline]
slab_alloc_node mm/slub.c:3478 [inline]
kmem_cache_alloc_node+0x180/0x3c0 mm/slub.c:3523
__alloc_skb+0x287/0x330 net/core/skbuff.c:641
alloc_skb include/linux/skbuff.h:1286 [inline]
alloc_skb_with_frags+0xe4/0x710 net/core/skbuff.c:6331
sock_alloc_send_pskb+0x7e4/0x970 net/core/sock.c:2780
sock_alloc_send_skb include/net/sock.h:1884 [inline]
queue_oob net/unix/af_unix.c:2147 [inline]
unix_stream_sendmsg+0xb5f/0x10a0 net/unix/af_unix.c:2301
sock_sendmsg_nosec net/socket.c:730 [inline]
__sock_sendmsg+0xd5/0x180 net/socket.c:745
____sys_sendmsg+0x6ac/0x940 net/socket.c:2584
___sys_sendmsg+0x135/0x1d0 net/socket.c:2638
__sys_sendmsg+0x117/0x1e0 net/socket.c:2667
do_syscall_x64 arch/x86/entry/common.c:51 [inline]
do_syscall_64+0x3f/0x110 arch/x86/entry/common.c:82
entry_SYSCALL_64_after_hwframe+0x63/0x6b
Freed by task 5295:
kasan_save_stack+0x33/0x50 mm/kasan/common.c:45
kasan_set_track+0x25/0x30 mm/kasan/common.c:52
kasan_save_free_info+0x2b/0x40 mm/kasan/generic.c:522
____kasan_slab_free mm/kasan/common.c:236 [inline]
____kasan_slab_free+0x15b/0x1b0 mm/kasan/common.c:200
kasan_slab_free include/linux/kasan.h:164 [inline]
slab_free_hook mm/slub.c:1800 [inline]
slab_free_freelist_hook+0x114/0x1e0 mm/slub.c:1826
slab_free mm/slub.c:3809 [inline]
kmem_cache_free+0xf8/0x340 mm/slub.c:3831
kfree_skbmem+0xef/0x1b0 net/core/skbuff.c:1015
__kfree_skb net/core/skbuff.c:1073 [inline]
consume_skb net/core/skbuff.c:1288 [inline]
consume_skb+0xdf/0x170 net/core/skbuff.c:1282
queue_oob net/unix/af_unix.c:2178 [inline]
unix_stream_sendmsg+0xd49/0x10a0 net/unix/af_unix.c:2301
sock_sendmsg_nosec net/socket.c:730 [inline]
__sock_sendmsg+0xd5/0x180 net/socket.c:745
____sys_sendmsg+0x6ac/0x940 net/socket.c:2584
___sys_sendmsg+0x135/0x1d0 net/socket.c:2638
__sys_sendmsg+0x117/0x1e0 net/socket.c:2667
do_syscall_x64 arch/x86/entry/common.c:51 [inline]
do_syscall_64+0x3f/0x110 arch/x86/entry/common.c:82
entry_SYSCALL_64_after_hwframe+0x63/0x6b
The buggy address belongs to the object at ffff88801f3b9c80
which belongs to the cache skbuff_head_cache of size 240
The buggy address is located 68 bytes inside of
freed 240-byte region [ffff88801f3b9c80, ffff88801f3b9d70)
The buggy address belongs to the physical page:
page:ffffea00007cee40 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1f3b9
flags: 0xfff00000000800(slab|node=0|zone=1|lastcpupid=0x7ff)
page_type: 0xffffffff()
raw: 00fff00000000800 ffff888142a60640 dead000000000122 0000000000000000
raw: 0000000000000000 00000000000c000c 00000001ffffffff 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 0, migratetype Unmovable, gfp_mask 0x12cc0(GFP_KERNEL|__GFP_NOWARN|__GFP_NORETRY), pid 5299, tgid 5283 (syz-executor107), ts 103803840339, free_ts 103600093431
set_page_owner include/linux/page_owner.h:31 [inline]
post_alloc_hook+0x2cf/0x340 mm/page_alloc.c:1537
prep_new_page mm/page_alloc.c:1544 [inline]
get_page_from_freelist+0xa25/0x36c0 mm/page_alloc.c:3312
__alloc_pages+0x1d0/0x4a0 mm/page_alloc.c:4568
alloc_pages_mpol+0x258/0x5f0 mm/mempolicy.c:2133
alloc_slab_page mm/slub.c:1870 [inline]
allocate_slab+0x251/0x380 mm/slub.c:2017
new_slab mm/slub.c:2070 [inline]
___slab_alloc+0x8c7/0x1580 mm/slub.c:3223
__slab_alloc.constprop.0+0x56/0xa0 mm/slub.c:3322
__slab_alloc_node mm/slub.c:3375 [inline]
slab_alloc_node mm/slub.c:3468 [inline]
kmem_cache_alloc_node+0x132/0x3c0 mm/slub.c:3523
__alloc_skb+0x287/0x330 net/core/skbuff.c:641
alloc_skb include/linux/skbuff.h:1286 [inline]
alloc_skb_with_frags+0xe4/0x710 net/core/skbuff.c:6331
sock_alloc_send_pskb+0x7e4/0x970 net/core/sock.c:2780
sock_alloc_send_skb include/net/sock.h:1884 [inline]
queue_oob net/unix/af_unix.c:2147 [inline]
unix_stream_sendmsg+0xb5f/0x10a0 net/unix/af_unix.c:2301
sock_sendmsg_nosec net/socket.c:730 [inline]
__sock_sendmsg+0xd5/0x180 net/socket.c:745
____sys_sendmsg+0x6ac/0x940 net/socket.c:2584
___sys_sendmsg+0x135/0x1d0 net/socket.c:2638
__sys_sendmsg+0x117/0x1e0 net/socket.c:2667
page last free stack trace:
reset_page_owner include/linux/page_owner.h:24 [inline]
free_pages_prepare mm/page_alloc.c:1137 [inline]
free_unref_page_prepare+0x4f8/0xa90 mm/page_alloc.c:2347
free_unref_page+0x33/0x3b0 mm/page_alloc.c:2487
__unfreeze_partials+0x21d/0x240 mm/slub.c:2655
qlink_free mm/kasan/quarantine.c:168 [inline]
qlist_free_all+0x6a/0x170 mm/kasan/quarantine.c:187
kasan_quarantine_reduce+0x18e/0x1d0 mm/kasan/quarantine.c:294
__kasan_slab_alloc+0x65/0x90 mm/kasan/common.c:305
kasan_slab_alloc include/linux/kasan.h:188 [inline]
slab_post_alloc_hook mm/slab.h:763 [inline]
slab_alloc_node mm/slub.c:3478 [inline]
slab_alloc mm/slub.c:3486 [inline]
__kmem_cache_alloc_lru mm/slub.c:3493 [inline]
kmem_cache_alloc+0x15d/0x380 mm/slub.c:3502
vm_area_dup+0x21/0x2f0 kernel/fork.c:500
__split_vma+0x17d/0x1070 mm/mmap.c:2365
split_vma mm/mmap.c:2437 [inline]
vma_modify+0x25d/0x450 mm/mmap.c:2472
vma_modify_flags include/linux/mm.h:3271 [inline]
mprotect_fixup+0x228/0xc80 mm/mprotect.c:635
do_mprotect_pkey+0x852/0xd60 mm/mprotect.c:809
__do_sys_mprotect mm/mprotect.c:830 [inline]
__se_sys_mprotect mm/mprotect.c:827 [inline]
__x64_sys_mprotect+0x78/0xb0 mm/mprotect.c:827
do_syscall_x64 arch/x86/entry/common.c:51 [inline]
do_syscall_64+0x3f/0x110 arch/x86/entry/common.c:82
entry_SYSCALL_64_after_hwframe+0x63/0x6b
Memory state around the buggy address:
ffff88801f3b9b80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
ffff88801f3b9c00: fb fb fb fb fb fb fc fc fc fc fc fc fc fc fc fc
>ffff88801f3b9c80: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
^
ffff88801f3b9d00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fc fc
ffff88801f3b9d80: fc fc fc fc fc fc fc fc fa fb fb fb fb fb fb fb
Fixes:
|
||
Shigeru Yoshida
|
fb317eb23b |
tipc: Fix kernel-infoleak due to uninitialized TLV value
KMSAN reported the following kernel-infoleak issue:
=====================================================
BUG: KMSAN: kernel-infoleak in instrument_copy_to_user include/linux/instrumented.h:114 [inline]
BUG: KMSAN: kernel-infoleak in copy_to_user_iter lib/iov_iter.c:24 [inline]
BUG: KMSAN: kernel-infoleak in iterate_ubuf include/linux/iov_iter.h:29 [inline]
BUG: KMSAN: kernel-infoleak in iterate_and_advance2 include/linux/iov_iter.h:245 [inline]
BUG: KMSAN: kernel-infoleak in iterate_and_advance include/linux/iov_iter.h:271 [inline]
BUG: KMSAN: kernel-infoleak in _copy_to_iter+0x4ec/0x2bc0 lib/iov_iter.c:186
instrument_copy_to_user include/linux/instrumented.h:114 [inline]
copy_to_user_iter lib/iov_iter.c:24 [inline]
iterate_ubuf include/linux/iov_iter.h:29 [inline]
iterate_and_advance2 include/linux/iov_iter.h:245 [inline]
iterate_and_advance include/linux/iov_iter.h:271 [inline]
_copy_to_iter+0x4ec/0x2bc0 lib/iov_iter.c:186
copy_to_iter include/linux/uio.h:197 [inline]
simple_copy_to_iter net/core/datagram.c:532 [inline]
__skb_datagram_iter.5+0x148/0xe30 net/core/datagram.c:420
skb_copy_datagram_iter+0x52/0x210 net/core/datagram.c:546
skb_copy_datagram_msg include/linux/skbuff.h:3960 [inline]
netlink_recvmsg+0x43d/0x1630 net/netlink/af_netlink.c:1967
sock_recvmsg_nosec net/socket.c:1044 [inline]
sock_recvmsg net/socket.c:1066 [inline]
__sys_recvfrom+0x476/0x860 net/socket.c:2246
__do_sys_recvfrom net/socket.c:2264 [inline]
__se_sys_recvfrom net/socket.c:2260 [inline]
__x64_sys_recvfrom+0x130/0x200 net/socket.c:2260
do_syscall_x64 arch/x86/entry/common.c:51 [inline]
do_syscall_64+0x44/0x110 arch/x86/entry/common.c:82
entry_SYSCALL_64_after_hwframe+0x63/0x6b
Uninit was created at:
slab_post_alloc_hook+0x103/0x9e0 mm/slab.h:768
slab_alloc_node mm/slub.c:3478 [inline]
kmem_cache_alloc_node+0x5f7/0xb50 mm/slub.c:3523
kmalloc_reserve+0x13c/0x4a0 net/core/skbuff.c:560
__alloc_skb+0x2fd/0x770 net/core/skbuff.c:651
alloc_skb include/linux/skbuff.h:1286 [inline]
tipc_tlv_alloc net/tipc/netlink_compat.c:156 [inline]
tipc_get_err_tlv+0x90/0x5d0 net/tipc/netlink_compat.c:170
tipc_nl_compat_recv+0x1042/0x15d0 net/tipc/netlink_compat.c:1324
genl_family_rcv_msg_doit net/netlink/genetlink.c:972 [inline]
genl_family_rcv_msg net/netlink/genetlink.c:1052 [inline]
genl_rcv_msg+0x1220/0x12c0 net/netlink/genetlink.c:1067
netlink_rcv_skb+0x4a4/0x6a0 net/netlink/af_netlink.c:2545
genl_rcv+0x41/0x60 net/netlink/genetlink.c:1076
netlink_unicast_kernel net/netlink/af_netlink.c:1342 [inline]
netlink_unicast+0xf4b/0x1230 net/netlink/af_netlink.c:1368
netlink_sendmsg+0x1242/0x1420 net/netlink/af_netlink.c:1910
sock_sendmsg_nosec net/socket.c:730 [inline]
__sock_sendmsg net/socket.c:745 [inline]
____sys_sendmsg+0x997/0xd60 net/socket.c:2588
___sys_sendmsg+0x271/0x3b0 net/socket.c:2642
__sys_sendmsg net/socket.c:2671 [inline]
__do_sys_sendmsg net/socket.c:2680 [inline]
__se_sys_sendmsg net/socket.c:2678 [inline]
__x64_sys_sendmsg+0x2fa/0x4a0 net/socket.c:2678
do_syscall_x64 arch/x86/entry/common.c:51 [inline]
do_syscall_64+0x44/0x110 arch/x86/entry/common.c:82
entry_SYSCALL_64_after_hwframe+0x63/0x6b
Bytes 34-35 of 36 are uninitialized
Memory access of size 36 starts at ffff88802d464a00
Data copied to user address 00007ff55033c0a0
CPU: 0 PID: 30322 Comm: syz-executor.0 Not tainted 6.6.0-14500-g1c41041124bd #10
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.2-1.fc38 04/01/2014
=====================================================
tipc_add_tlv() puts TLV descriptor and value onto `skb`. This size is
calculated with TLV_SPACE() macro. It adds the size of struct tlv_desc and
the length of TLV value passed as an argument, and aligns the result to a
multiple of TLV_ALIGNTO, i.e., a multiple of 4 bytes.
If the size of struct tlv_desc plus the length of TLV value is not aligned,
the current implementation leaves the remaining bytes uninitialized. This
is the cause of the above kernel-infoleak issue.
This patch resolves this issue by clearing data up to an aligned size.
Fixes:
|
||
Willem de Bruijn
|
e6daf129cc |
net: gso_test: support CONFIG_MAX_SKB_FRAGS up to 45
The test allocs a single page to hold all the frag_list skbs. This
is insufficient on kernels with CONFIG_MAX_SKB_FRAGS=45, due to the
increased skb_shared_info frags[] array length.
gso_test_func: ASSERTION FAILED at net/core/gso_test.c:210
Expected alloc_size <= ((1UL) << 12), but
alloc_size == 5075 (0x13d3)
((1UL) << 12) == 4096 (0x1000)
Simplify the logic. Just allocate a page for each frag_list skb.
Fixes:
|
||
Stanislav Fomichev
|
871019b22d |
net: set SOCK_RCU_FREE before inserting socket into hashtable
We've started to see the following kernel traces: WARNING: CPU: 83 PID: 0 at net/core/filter.c:6641 sk_lookup+0x1bd/0x1d0 Call Trace: <IRQ> __bpf_skc_lookup+0x10d/0x120 bpf_sk_lookup+0x48/0xd0 bpf_sk_lookup_tcp+0x19/0x20 bpf_prog_<redacted>+0x37c/0x16a3 cls_bpf_classify+0x205/0x2e0 tcf_classify+0x92/0x160 __netif_receive_skb_core+0xe52/0xf10 __netif_receive_skb_list_core+0x96/0x2b0 napi_complete_done+0x7b5/0xb70 <redacted>_poll+0x94/0xb0 net_rx_action+0x163/0x1d70 __do_softirq+0xdc/0x32e asm_call_irq_on_stack+0x12/0x20 </IRQ> do_softirq_own_stack+0x36/0x50 do_softirq+0x44/0x70 __inet_hash can race with lockless (rcu) readers on the other cpus: __inet_hash __sk_nulls_add_node_rcu <- (bpf triggers here) sock_set_flag(SOCK_RCU_FREE) Let's move the SOCK_RCU_FREE part up a bit, before we are inserting the socket into hashtables. Note, that the race is really harmless; the bpf callers are handling this situation (where listener socket doesn't have SOCK_RCU_FREE set) correctly, so the only annoyance is a WARN_ONCE. More details from Eric regarding SOCK_RCU_FREE timeline: Commit |
||
Linus Torvalds
|
89cdf9d556 |
Including fixes from netfilter and bpf.
Current release - regressions: - sched: fix SKB_NOT_DROPPED_YET splat under debug config Current release - new code bugs: - tcp: fix usec timestamps with TCP fastopen - tcp_sigpool: fix some off by one bugs - tcp: fix possible out-of-bounds reads in tcp_hash_fail() - tcp: fix SYN option room calculation for TCP-AO - bpf: fix compilation error without CGROUPS - ptp: - ptp_read() should not release queue - fix tsevqs corruption Previous releases - regressions: - llc: verify mac len before reading mac header Previous releases - always broken: - bpf: - fix check_stack_write_fixed_off() to correctly spill imm - fix precision tracking for BPF_ALU | BPF_TO_BE | BPF_END - check map->usercnt after timer->timer is assigned - dsa: lan9303: consequently nested-lock physical MDIO - dccp/tcp: call security_inet_conn_request() after setting IP addr - tg3: fix the TX ring stall due to incorrect full ring handling - phylink: initialize carrier state at creation - ice: fix direction of VF rules in switchdev mode Misc: - fill in a bunch of missing MODULE_DESCRIPTION()s, more to come Signed-off-by: Jakub Kicinski <kuba@kernel.org> -----BEGIN PGP SIGNATURE----- iQIzBAABCAAdFiEE6jPA+I1ugmIBA4hXMUZtbf5SIrsFAmVNRnAACgkQMUZtbf5S IrsYaA/+IUoYi96/oLtvvrET6HIbXeMaLKef0UlytEicQKy8h5EWlhcTZPhQEY0g dtaKOemQsO0dQTma4eQBiBDHeCeSkitgD9p7fh0i+//QFYWSFqHrBiF2mlToc/ZQ T1p4BlVL7D2Xsr1Lki93zk+EhFGEy2KroYgrWbZc9TWE5ap9PtSVF9eqeHAVCmZ7 ocre/eo4pqUM9rAHIAyhoL+0xtVQ59dBevbJC0qYcmflhafr82Gtdveo6pBBKuYm GhwbRrAXER3Neav9c6NHqat4zsMwGpC27SiN9dYWm6dlkeS9U9t2PUu71OkJGVfw VaSE+utkC/WmzGbuiUIjqQLBrRe372ItHCr78BfSRMshS+RBTHtoK7njeH8Iv67E RsMeCyVNj9dtGlOQG5JAv8IoCQ1WbMw9B36Yzw3ip/MmDX/ntXz7Dcr4ZMZ6VURS CHhHFZPnmMykMXkT6SIlxeAg2r8ELtESzkvLimdTVFPAlk3cPkibKJbh3F/tEqXS PDb3y0uoEgRQBAsWXXx9FQEvv9rTL6YrzbMhmJBIIEoNxppQYQ7FZBJX9utAVp5B 1GdyqhR6IRTaKb9cMRj/K1xPwm2KgCw9xj9pjKdAA7QUMslXbFp8blv1rIkFGshg hiNXmPcI8wo0j+0lZYktEcIERL5y6c8BgK2NnPU6RULua96tuQ4= =k6Wk -----END PGP SIGNATURE----- Merge tag 'net-6.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net Pull networking fixes from Jakub Kicinski: "Including fixes from netfilter and bpf. Current release - regressions: - sched: fix SKB_NOT_DROPPED_YET splat under debug config Current release - new code bugs: - tcp: - fix usec timestamps with TCP fastopen - fix possible out-of-bounds reads in tcp_hash_fail() - fix SYN option room calculation for TCP-AO - tcp_sigpool: fix some off by one bugs - bpf: fix compilation error without CGROUPS - ptp: - ptp_read() should not release queue - fix tsevqs corruption Previous releases - regressions: - llc: verify mac len before reading mac header Previous releases - always broken: - bpf: - fix check_stack_write_fixed_off() to correctly spill imm - fix precision tracking for BPF_ALU | BPF_TO_BE | BPF_END - check map->usercnt after timer->timer is assigned - dsa: lan9303: consequently nested-lock physical MDIO - dccp/tcp: call security_inet_conn_request() after setting IP addr - tg3: fix the TX ring stall due to incorrect full ring handling - phylink: initialize carrier state at creation - ice: fix direction of VF rules in switchdev mode Misc: - fill in a bunch of missing MODULE_DESCRIPTION()s, more to come" * tag 'net-6.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (84 commits) net: ti: icss-iep: fix setting counter value ptp: fix corrupted list in ptp_open ptp: ptp_read should not release queue net_sched: sch_fq: better validate TCA_FQ_WEIGHTS and TCA_FQ_PRIOMAP net: kcm: fill in MODULE_DESCRIPTION() net/sched: act_ct: Always fill offloading tuple iifidx netfilter: nat: fix ipv6 nat redirect with mapped and scoped addresses netfilter: xt_recent: fix (increase) ipv6 literal buffer length ipvs: add missing module descriptions netfilter: nf_tables: remove catchall element in GC sync path netfilter: add missing module descriptions drivers/net/ppp: use standard array-copy-function net: enetc: shorten enetc_setup_xdp_prog() error message to fit NETLINK_MAX_FMTMSG_LEN virtio/vsock: Fix uninit-value in virtio_transport_recv_pkt() r8169: respect userspace disabling IFF_MULTICAST selftests/bpf: get trusted cgrp from bpf_iter__cgroup directly bpf: Let verifier consider {task,cgroup} is trusted in bpf_iter_reg net: phylink: initialize carrier state at creation test/vsock: add dobule bind connect test test/vsock: refactor vsock_accept ... |
||
Eric Dumazet
|
f1a3b283f8 |
net_sched: sch_fq: better validate TCA_FQ_WEIGHTS and TCA_FQ_PRIOMAP
syzbot was able to trigger the following report while providing too small TCA_FQ_WEIGHTS attribute [1] Fix is to use NLA_POLICY_EXACT_LEN() to ensure user space provided correct sizes. Apply the same fix to TCA_FQ_PRIOMAP. [1] BUG: KMSAN: uninit-value in fq_load_weights net/sched/sch_fq.c:960 [inline] BUG: KMSAN: uninit-value in fq_change+0x1348/0x2fe0 net/sched/sch_fq.c:1071 fq_load_weights net/sched/sch_fq.c:960 [inline] fq_change+0x1348/0x2fe0 net/sched/sch_fq.c:1071 fq_init+0x68e/0x780 net/sched/sch_fq.c:1159 qdisc_create+0x12f3/0x1be0 net/sched/sch_api.c:1326 tc_modify_qdisc+0x11ef/0x2c20 rtnetlink_rcv_msg+0x16a6/0x1840 net/core/rtnetlink.c:6558 netlink_rcv_skb+0x371/0x650 net/netlink/af_netlink.c:2545 rtnetlink_rcv+0x34/0x40 net/core/rtnetlink.c:6576 netlink_unicast_kernel net/netlink/af_netlink.c:1342 [inline] netlink_unicast+0xf47/0x1250 net/netlink/af_netlink.c:1368 netlink_sendmsg+0x1238/0x13d0 net/netlink/af_netlink.c:1910 sock_sendmsg_nosec net/socket.c:730 [inline] __sock_sendmsg net/socket.c:745 [inline] ____sys_sendmsg+0x9c2/0xd60 net/socket.c:2588 ___sys_sendmsg+0x28d/0x3c0 net/socket.c:2642 __sys_sendmsg net/socket.c:2671 [inline] __do_sys_sendmsg net/socket.c:2680 [inline] __se_sys_sendmsg net/socket.c:2678 [inline] __x64_sys_sendmsg+0x307/0x490 net/socket.c:2678 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x44/0x110 arch/x86/entry/common.c:82 entry_SYSCALL_64_after_hwframe+0x63/0x6b Uninit was created at: slab_post_alloc_hook+0x129/0xa70 mm/slab.h:768 slab_alloc_node mm/slub.c:3478 [inline] kmem_cache_alloc_node+0x5e9/0xb10 mm/slub.c:3523 kmalloc_reserve+0x13d/0x4a0 net/core/skbuff.c:560 __alloc_skb+0x318/0x740 net/core/skbuff.c:651 alloc_skb include/linux/skbuff.h:1286 [inline] netlink_alloc_large_skb net/netlink/af_netlink.c:1214 [inline] netlink_sendmsg+0xb34/0x13d0 net/netlink/af_netlink.c:1885 sock_sendmsg_nosec net/socket.c:730 [inline] __sock_sendmsg net/socket.c:745 [inline] ____sys_sendmsg+0x9c2/0xd60 net/socket.c:2588 ___sys_sendmsg+0x28d/0x3c0 net/socket.c:2642 __sys_sendmsg net/socket.c:2671 [inline] __do_sys_sendmsg net/socket.c:2680 [inline] __se_sys_sendmsg net/socket.c:2678 [inline] __x64_sys_sendmsg+0x307/0x490 net/socket.c:2678 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x44/0x110 arch/x86/entry/common.c:82 entry_SYSCALL_64_after_hwframe+0x63/0x6b CPU: 1 PID: 5001 Comm: syz-executor300 Not tainted 6.6.0-syzkaller-12401-g8f6f76a6a29f #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023 Fixes: |
||
Jakub Kicinski
|
31356547e3 |
net: kcm: fill in MODULE_DESCRIPTION()
W=1 builds now warn if module is built without a MODULE_DESCRIPTION(). Link: https://lore.kernel.org/r/20231108020305.537293-1-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org> |
||
Jakub Kicinski
|
0613736e8a |
netfilter pull request 23-11-08
-----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEN9lkrMBJgcdVAPub1V2XiooUIOQFAmVLrH8ACgkQ1V2XiooU IOQBZxAAly/nvsb1D045b0FnHAWeB0+w1/1eiydfjIXNOYWVVCrDOLaVDOSnsYHy CWVij0REo4Sikkbc82UmggJdNcMDeEYtowNjCHtyE+ts4DcVlgqSq3uTdCnuCgsG t8rT40jZfAMbhgaM1e/kDMk6GfwDwLfKWExt6Wj2FhN5Kdh7UcSXZAyx+yRHbOM5 25uaZlBHBj2r9iEJokFXQ3zHXQJw4I2zxxZ4dFUSTUYNWEPsGCf5whpqsBgMmq/0 LDCiNQ7vdF4y6tZkD2PLnU8vYsF0t9aA6TKetsXT3BXZ2mkz5AJ2aAME9Fyn6aQW axTi8T02o6oFASAhl8Osc6J6sls0oQ44VswLl5OvOgvWtZOVYGrvXR6mHesPfbKr yeRNrVdFrlLWvNmHxuRU0/LeKfzmOih6QGFQ4NZ8lAFzsiCb6j7CSK9zqbnU9Hjb 36N+VRP/lexGbHhhemBcsGGEOoHdtDtBSjjXSsahEOqIfQ/rI3dVYfYTQ/R3/fpk i2DYkgf9BeuvRANukNbBi1TaphqCvV2N0ozStbNrmf0vcbq6+z4vkga2dQGUq/+I uYRSSQMhB9ZnSdoOpvDjYZWIUx96Vkm6HPBRUl70w4n2bUUri/1Qaq1u2ySPhIIY d7xh7271kXwjHiD7cdcwLa4+D5Ap/ZhWu49Jofb0iIQdvPr5O2w= =8Kr3 -----END PGP SIGNATURE----- Merge tag 'nf-23-11-08' of git://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf Pablo Neira Ayuso says: ==================== Netfilter fixes for net The following patchset contains Netfilter fixes for net: 1) Add missing netfilter modules description to fix W=1, from Florian Westphal. 2) Fix catch-all element GC with timeout when use with the pipapo set backend, this remained broken since I tried to fix it this summer, then another attempt to fix it recently. 3) Add missing IPVS modules descriptions to fix W=1, also from Florian. 4) xt_recent allocated a too small buffer to store an IPv4-mapped IPv6 address which can be parsed by in6_pton(), from Maciej Zenczykowski. Broken for many releases. 5) Skip IPv4-mapped IPv6, IPv4-compat IPv6, site/link local scoped IPv6 addressses to set up IPv6 NAT redirect, also from Florian. This is broken since 2012. * tag 'nf-23-11-08' of git://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf: netfilter: nat: fix ipv6 nat redirect with mapped and scoped addresses netfilter: xt_recent: fix (increase) ipv6 literal buffer length ipvs: add missing module descriptions netfilter: nf_tables: remove catchall element in GC sync path netfilter: add missing module descriptions ==================== Link: https://lore.kernel.org/r/20231108155802.84617-1-pablo@netfilter.org Signed-off-by: Jakub Kicinski <kuba@kernel.org> |
||
Jakub Kicinski
|
942b8b38de |
bpf-for-netdev
-----BEGIN PGP SIGNATURE----- iHUEABYIAB0WIQTFp0I1jqZrAX+hPRXbK58LschIgwUCZUsiDAAKCRDbK58LschI g9xXAQCaFjj55sXDpr1qKG2D3PMSDURx7SzmpzIay/A/dqVDPgEAlgU6XsMW6w6S poMN8KniDLtBgj6nIKfJEAgIXeIYTAs= =qXjW -----END PGP SIGNATURE----- Merge tag 'for-netdev' of https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf Daniel Borkmann says: ==================== pull-request: bpf 2023-11-08 We've added 16 non-merge commits during the last 6 day(s) which contain a total of 30 files changed, 341 insertions(+), 130 deletions(-). The main changes are: 1) Fix a BPF verifier issue in precision tracking for BPF_ALU | BPF_TO_BE | BPF_END where the source register was incorrectly marked as precise, from Shung-Hsi Yu. 2) Fix a concurrency issue in bpf_timer where the former could still have been alive after an application releases or unpins the map, from Hou Tao. 3) Fix a BPF verifier issue where immediates are incorrectly cast to u32 before being spilled and therefore losing sign information, from Hao Sun. 4) Fix a misplaced BPF_TRACE_ITER in check_css_task_iter_allowlist which incorrectly compared bpf_prog_type with bpf_attach_type, from Chuyi Zhou. 5) Add __bpf_hook_{start,end} as well as __bpf_kfunc_{start,end}_defs macros, migrate all BPF-related __diag callsites over to it, and add a new __diag_ignore_all for -Wmissing-declarations to the macros to address recent build warnings, from Dave Marchevsky. 6) Fix broken BPF selftest build of xdp_hw_metadata test on architectures where char is not signed, from Björn Töpel. 7) Fix test_maps selftest to properly use LIBBPF_OPTS() macro to initialize the bpf_map_create_opts, from Andrii Nakryiko. 8) Fix bpffs selftest to avoid unmounting /sys/kernel/debug as it may have been mounted and used by other applications already, from Manu Bretelle. 9) Fix a build issue without CONFIG_CGROUPS wrt css_task open-coded iterators, from Matthieu Baerts. * tag 'for-netdev' of https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf: selftests/bpf: get trusted cgrp from bpf_iter__cgroup directly bpf: Let verifier consider {task,cgroup} is trusted in bpf_iter_reg selftests/bpf: Fix broken build where char is unsigned selftests/bpf: precision tracking test for BPF_NEG and BPF_END bpf: Fix precision tracking for BPF_ALU | BPF_TO_BE | BPF_END selftests/bpf: Add test for using css_task iter in sleepable progs selftests/bpf: Add tests for css_task iter combining with cgroup iter bpf: Relax allowlist for css_task iter selftests/bpf: fix test_maps' use of bpf_map_create_opts bpf: Check map->usercnt after timer->timer is assigned bpf: Add __bpf_hook_{start,end} macros bpf: Add __bpf_kfunc_{start,end}_defs macros selftests/bpf: fix test_bpffs selftests/bpf: Add test for immediate spilled to stack bpf: Fix check_stack_write_fixed_off() to correctly spill imm bpf: fix compilation error without CGROUPS ==================== Link: https://lore.kernel.org/r/20231108132448.1970-1-daniel@iogearbox.net Signed-off-by: Jakub Kicinski <kuba@kernel.org> |
||
Vlad Buslov
|
9bc64bd0cd |
net/sched: act_ct: Always fill offloading tuple iifidx
Referenced commit doesn't always set iifidx when offloading the flow to hardware. Fix the following cases: - nf_conn_act_ct_ext_fill() is called before extension is created with nf_conn_act_ct_ext_add() in tcf_ct_act(). This can cause rule offload with unspecified iifidx when connection is offloaded after only single original-direction packet has been processed by tc data path. Always fill the new nf_conn_act_ct_ext instance after creating it in nf_conn_act_ct_ext_add(). - Offloading of unidirectional UDP NEW connections is now supported, but ct flow iifidx field is not updated when connection is promoted to bidirectional which can result reply-direction iifidx to be zero when refreshing the connection. Fill in the extension and update flow iifidx before calling flow_offload_refresh(). Fixes: |
||
Linus Torvalds
|
6bc986ab83 |
NFS client updates for Linux 6.7
Highlights include: Bugfixes: - SUNRPC: A fix to re-probe the target RPC port after an ECONNRESET error - SUNRPC: Handle allocation errors from rpcb_call_async() - SUNRPC: Fix a use-after-free condition in rpc_pipefs - SUNRPC: fix up various checks for timeouts - NFSv4.1: Handle NFS4ERR_DELAY errors during session trunking - NFSv4.1: fix SP4_MACH_CRED protection for pnfs IO - NFSv4: Ensure that we test all delegations when the server notifies us that it may have revoked some of them Features: - Allow knfsd processes to break out of NFS4ERR_DELAY loops when re-exporting NFSv4.x by setting appropriate values for the 'delay_retrans' module parameter. - nfs: Convert nfs_symlink() to use a folio -----BEGIN PGP SIGNATURE----- iQIzBAABCAAdFiEESQctxSBg8JpV8KqEZwvnipYKAPIFAmVL62IACgkQZwvnipYK API4Ww/+I75hmEdI4i/6v8WnrLWLWzmCgybez2AfrKYtuYmEcDZTf2K4pNVEJxFG PJ4TYRpaSgwxCXqoup5INOdL5gS8g3JbAlTqrDQ8nYGeBXETN9tN5n2Xj8liHk2l OrnYzgTjC2pwpWDZq/W1LCQMatCbs9XhpmyBvqZH5r7tAOVGkrk1ICZ/r+/nGiN8 LAbm/I0M1Jp0iJisN/i/0CsEgLQMCfeQVrtEMCZGsoVS79Mr/W1hF3KiGognI/xz FvEXnZKauw9npu7U7ckhHZcHd8oQxby0Q0Xny/IpgiO2Z1YqfKCvJSK1sjBt/lFu 7fe2HGMFfcTMx/bn/qdUJR351607rBi4h3t1OfK4KIxV1gSLUyS/RR7ayFx5A0gM pFJcC0ZnKoiVr2vSNMMguennbyjScqNOC5ECb+bpMAyDV7suF9e/khK12CdYwqFm cpeUUD35GZT+RjP3htI92Pj0bqBOHx+o7qEi+MEel3t90us8PPBrWywHk7Tw40vJ eUxH0XQtZVswH6TvekNdoMXx8TXSAbx4I6Hw3fmNGWLRp494p3GVSmWQmctcvCi7 Y6E1P3YT8G1OeI9+fIQr5Wp2F9sOdFPrb3BrAojj9ndJ3ZqQAcx+gY5z2RVnvvur PTsLInFxS8+WvvqPtQCZZ5UxnrcPFCk1js0rg6EqdjZmq6+OqJU= =TNRl -----END PGP SIGNATURE----- Merge tag 'nfs-for-6.7-1' of git://git.linux-nfs.org/projects/trondmy/linux-nfs Pull NFS client updates from Trond Myklebust: "Bugfixes: - SUNRPC: - re-probe the target RPC port after an ECONNRESET error - handle allocation errors from rpcb_call_async() - fix a use-after-free condition in rpc_pipefs - fix up various checks for timeouts - NFSv4.1: - Handle NFS4ERR_DELAY errors during session trunking - fix SP4_MACH_CRED protection for pnfs IO - NFSv4: - Ensure that we test all delegations when the server notifies us that it may have revoked some of them Features: - Allow knfsd processes to break out of NFS4ERR_DELAY loops when re-exporting NFSv4.x by setting appropriate values for the 'delay_retrans' module parameter - nfs: Convert nfs_symlink() to use a folio" * tag 'nfs-for-6.7-1' of git://git.linux-nfs.org/projects/trondmy/linux-nfs: nfs: Convert nfs_symlink() to use a folio SUNRPC: Fix RPC client cleaned up the freed pipefs dentries NFSv4.1: fix SP4_MACH_CRED protection for pnfs IO SUNRPC: Add an IS_ERR() check back to where it was NFSv4.1: fix handling NFS4ERR_DELAY when testing for session trunking nfs41: drop dependency between flexfiles layout driver and NFSv3 modules NFSv4: fairly test all delegations on a SEQ4_ revocation SUNRPC: SOFTCONN tasks should time out when on the sending list SUNRPC: Force close the socket when a hard error is reported SUNRPC: Don't skip timeout checks in call_connect_status() SUNRPC: ECONNRESET might require a rebind NFSv4/pnfs: Allow layoutget to return EAGAIN for softerr mounts NFSv4: Add a parameter to limit the number of retries after NFS4ERR_DELAY |
||
Florian Westphal
|
80abbe8a82 |
netfilter: nat: fix ipv6 nat redirect with mapped and scoped addresses
The ipv6 redirect target was derived from the ipv4 one, i.e. its
identical to a 'dnat' with the first (primary) address assigned to the
network interface. The code has been moved around to make it usable
from nf_tables too, but its still the same as it was back when this
was added in 2012.
IPv6, however, has different types of addresses, if the 'wrong' address
comes first the redirection does not work.
In Daniels case, the addresses are:
inet6 ::ffff:192 ...
inet6 2a01: ...
... so the function attempts to redirect to the mapped address.
Add more checks before the address is deemed correct:
1. If the packets' daddr is scoped, search for a scoped address too
2. skip tentative addresses
3. skip mapped addresses
Use the first address that appears to match our needs.
Reported-by: Daniel Huhardeaux <tech@tootai.net>
Closes: https://lore.kernel.org/netfilter/71be06b8-6aa0-4cf9-9e0b-e2839b01b22f@tootai.net/
Fixes:
|
||
Maciej Żenczykowski
|
7b308feb4f |
netfilter: xt_recent: fix (increase) ipv6 literal buffer length
in6_pton() supports 'low-32-bit dot-decimal representation'
(this is useful with DNS64/NAT64 networks for example):
# echo +aaaa:bbbb:cccc:dddd:eeee:ffff:1.2.3.4 > /proc/self/net/xt_recent/DEFAULT
# cat /proc/self/net/xt_recent/DEFAULT
src=aaaa:bbbb:cccc:dddd:eeee:ffff:0102:0304 ttl: 0 last_seen: 9733848829 oldest_pkt: 1 9733848829
but the provided buffer is too short:
# echo +aaaa:bbbb:cccc:dddd:eeee:ffff:255.255.255.255 > /proc/self/net/xt_recent/DEFAULT
-bash: echo: write error: Invalid argument
Fixes:
|
||
Florian Westphal
|
17cd01e4d1 |
ipvs: add missing module descriptions
W=1 builds warn on missing MODULE_DESCRIPTION, add them. Signed-off-by: Florian Westphal <fw@strlen.de> Acked-by: Julian Anastasov <ja@ssi.bg> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org> |
||
Pablo Neira Ayuso
|
93995bf4af |
netfilter: nf_tables: remove catchall element in GC sync path
The expired catchall element is not deactivated and removed from GC sync
path. This path holds mutex so just call nft_setelem_data_deactivate()
and nft_setelem_catchall_remove() before queueing the GC work.
Fixes:
|
||
Florian Westphal
|
94090b23f3 |
netfilter: add missing module descriptions
W=1 builds warn on missing MODULE_DESCRIPTION, add them. Signed-off-by: Florian Westphal <fw@strlen.de> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org> |
||
Shigeru Yoshida
|
34c4effacf |
virtio/vsock: Fix uninit-value in virtio_transport_recv_pkt()
KMSAN reported the following uninit-value access issue:
=====================================================
BUG: KMSAN: uninit-value in virtio_transport_recv_pkt+0x1dfb/0x26a0 net/vmw_vsock/virtio_transport_common.c:1421
virtio_transport_recv_pkt+0x1dfb/0x26a0 net/vmw_vsock/virtio_transport_common.c:1421
vsock_loopback_work+0x3bb/0x5a0 net/vmw_vsock/vsock_loopback.c:120
process_one_work kernel/workqueue.c:2630 [inline]
process_scheduled_works+0xff6/0x1e60 kernel/workqueue.c:2703
worker_thread+0xeca/0x14d0 kernel/workqueue.c:2784
kthread+0x3cc/0x520 kernel/kthread.c:388
ret_from_fork+0x66/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:304
Uninit was stored to memory at:
virtio_transport_space_update net/vmw_vsock/virtio_transport_common.c:1274 [inline]
virtio_transport_recv_pkt+0x1ee8/0x26a0 net/vmw_vsock/virtio_transport_common.c:1415
vsock_loopback_work+0x3bb/0x5a0 net/vmw_vsock/vsock_loopback.c:120
process_one_work kernel/workqueue.c:2630 [inline]
process_scheduled_works+0xff6/0x1e60 kernel/workqueue.c:2703
worker_thread+0xeca/0x14d0 kernel/workqueue.c:2784
kthread+0x3cc/0x520 kernel/kthread.c:388
ret_from_fork+0x66/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:304
Uninit was created at:
slab_post_alloc_hook+0x105/0xad0 mm/slab.h:767
slab_alloc_node mm/slub.c:3478 [inline]
kmem_cache_alloc_node+0x5a2/0xaf0 mm/slub.c:3523
kmalloc_reserve+0x13c/0x4a0 net/core/skbuff.c:559
__alloc_skb+0x2fd/0x770 net/core/skbuff.c:650
alloc_skb include/linux/skbuff.h:1286 [inline]
virtio_vsock_alloc_skb include/linux/virtio_vsock.h:66 [inline]
virtio_transport_alloc_skb+0x90/0x11e0 net/vmw_vsock/virtio_transport_common.c:58
virtio_transport_reset_no_sock net/vmw_vsock/virtio_transport_common.c:957 [inline]
virtio_transport_recv_pkt+0x1279/0x26a0 net/vmw_vsock/virtio_transport_common.c:1387
vsock_loopback_work+0x3bb/0x5a0 net/vmw_vsock/vsock_loopback.c:120
process_one_work kernel/workqueue.c:2630 [inline]
process_scheduled_works+0xff6/0x1e60 kernel/workqueue.c:2703
worker_thread+0xeca/0x14d0 kernel/workqueue.c:2784
kthread+0x3cc/0x520 kernel/kthread.c:388
ret_from_fork+0x66/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:304
CPU: 1 PID: 10664 Comm: kworker/1:5 Not tainted 6.6.0-rc3-00146-g9f3ebbef746f #3
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.2-1.fc38 04/01/2014
Workqueue: vsock-loopback vsock_loopback_work
=====================================================
The following simple reproducer can cause the issue described above:
int main(void)
{
int sock;
struct sockaddr_vm addr = {
.svm_family = AF_VSOCK,
.svm_cid = VMADDR_CID_ANY,
.svm_port = 1234,
};
sock = socket(AF_VSOCK, SOCK_STREAM, 0);
connect(sock, (struct sockaddr *)&addr, sizeof(addr));
return 0;
}
This issue occurs because the `buf_alloc` and `fwd_cnt` fields of the
`struct virtio_vsock_hdr` are not initialized when a new skb is allocated
in `virtio_transport_init_hdr()`. This patch resolves the issue by
initializing these fields during allocation.
Fixes:
|
||
Filippo Storniolo
|
3a5cc90a4d |
vsock/virtio: remove socket from connected/bound list on shutdown
If the same remote peer, using the same port, tries to connect
to a server on a listening port more than once, the server will
reject the connection, causing a "connection reset by peer"
error on the remote peer. This is due to the presence of a
dangling socket from a previous connection in both the connected
and bound socket lists.
The inconsistency of the above lists only occurs when the remote
peer disconnects and the server remains active.
This bug does not occur when the server socket is closed:
virtio_transport_release() will eventually schedule a call to
virtio_transport_do_close() and the latter will remove the socket
from the bound and connected socket lists and clear the sk_buff.
However, virtio_transport_do_close() will only perform the above
actions if it has been scheduled, and this will not happen
if the server is processing the shutdown message from a remote peer.
To fix this, introduce a call to vsock_remove_sock()
when the server is handling a client disconnect.
This is to remove the socket from the bound and connected socket
lists without clearing the sk_buff.
Fixes:
|
||
Nathan Chancellor
|
7425627b2b |
tcp: Fix -Wc23-extensions in tcp_options_write()
Clang warns (or errors with CONFIG_WERROR=y) when CONFIG_TCP_AO is set:
net/ipv4/tcp_output.c:663:2: error: label at end of compound statement is a C23 extension [-Werror,-Wc23-extensions]
663 | }
| ^
1 error generated.
On earlier releases (such as clang-11, the current minimum supported
version for building the kernel) that do not support C23, this was a
hard error unconditionally:
net/ipv4/tcp_output.c:663:2: error: expected statement
}
^
1 error generated.
While adding a semicolon after the label would resolve this, it is more
in line with the kernel as a whole to refactor this block into a
standalone function, which means the goto a label construct can just be
replaced with a return statement. Do so to resolve the warning.
Closes: https://github.com/ClangBuiltLinux/linux/issues/1953
Fixes:
|
||
D. Wythe
|
aa96fbd6d7 |
net/smc: put sk reference if close work was canceled
Note that we always hold a reference to sock when attempting
to submit close_work. Therefore, if we have successfully
canceled close_work from pending, we MUST release that reference
to avoid potential leaks.
Fixes:
|
||
D. Wythe
|
c5bf605ba4 |
net/smc: allow cdc msg send rather than drop it with NULL sndbuf_desc
This patch re-fix the issues mentioned by commit |
||
D. Wythe
|
5211c97294 |
net/smc: fix dangling sock under state SMC_APPFINCLOSEWAIT
Considering scenario:
smc_cdc_rx_handler
__smc_release
sock_set_flag
smc_close_active()
sock_set_flag
__set_bit(DEAD) __set_bit(DONE)
Dues to __set_bit is not atomic, the DEAD or DONE might be lost.
if the DEAD flag lost, the state SMC_CLOSED will be never be reached
in smc_close_passive_work:
if (sock_flag(sk, SOCK_DEAD) &&
smc_close_sent_any_close(conn)) {
sk->sk_state = SMC_CLOSED;
} else {
/* just shutdown, but not yet closed locally */
sk->sk_state = SMC_APPFINCLOSEWAIT;
}
Replace sock_set_flags or __set_bit to set_bit will fix this problem.
Since set_bit is atomic.
Fixes:
|
||
Kuniyuki Iwashima
|
0a8e987dcc |
tcp: Fix SYN option room calculation for TCP-AO.
When building SYN packet in tcp_syn_options(), MSS, TS, WS, and
SACKPERM are used without checking the remaining bytes in the
options area.
To keep that logic as is, we limit the TCP-AO MAC length in
tcp_ao_parse_crypto(). Currently, the limit is calculated as below.
MAX_TCP_OPTION_SPACE - TCPOLEN_TSTAMP_ALIGNED
- TCPOLEN_WSCALE_ALIGNED
- TCPOLEN_SACKPERM_ALIGNED
This looks confusing as (1) we pack SACKPERM into the leading
2-bytes of the aligned 12-bytes of TS and (2) TCPOLEN_MSS_ALIGNED
is not used. Fortunately, the calculated limit is not wrong as
TCPOLEN_SACKPERM_ALIGNED and TCPOLEN_MSS_ALIGNED are the same value.
However, we should use the proper constant in the formula.
MAX_TCP_OPTION_SPACE - TCPOLEN_MSS_ALIGNED
- TCPOLEN_TSTAMP_ALIGNED
- TCPOLEN_WSCALE_ALIGNED
Fixes:
|
||
Jamal Hadi Salim
|
40cb2fdfed |
net, sched: Fix SKB_NOT_DROPPED_YET splat under debug config
Getting the following splat [1] with CONFIG_DEBUG_NET=y and this
reproducer [2]. Problem seems to be that classifiers clear 'struct
tcf_result::drop_reason', thereby triggering the warning in
__kfree_skb_reason() due to reason being 'SKB_NOT_DROPPED_YET' (0).
Fixed by disambiguating a legit error from a verdict with a bogus drop_reason
[1]
WARNING: CPU: 0 PID: 181 at net/core/skbuff.c:1082 kfree_skb_reason+0x38/0x130
Modules linked in:
CPU: 0 PID: 181 Comm: mausezahn Not tainted 6.6.0-rc6-custom-ge43e6d9582e0 #682
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.2-1.fc37 04/01/2014
RIP: 0010:kfree_skb_reason+0x38/0x130
[...]
Call Trace:
<IRQ>
__netif_receive_skb_core.constprop.0+0x837/0xdb0
__netif_receive_skb_one_core+0x3c/0x70
process_backlog+0x95/0x130
__napi_poll+0x25/0x1b0
net_rx_action+0x29b/0x310
__do_softirq+0xc0/0x29b
do_softirq+0x43/0x60
</IRQ>
[2]
ip link add name veth0 type veth peer name veth1
ip link set dev veth0 up
ip link set dev veth1 up
tc qdisc add dev veth1 clsact
tc filter add dev veth1 ingress pref 1 proto all flower dst_mac 00:11:22:33:44:55 action drop
mausezahn veth0 -a own -b 00:11:22:33:44:55 -q -c 1
Ido reported:
[...] getting the following splat [1] with CONFIG_DEBUG_NET=y and this
reproducer [2]. Problem seems to be that classifiers clear 'struct
tcf_result::drop_reason', thereby triggering the warning in
__kfree_skb_reason() due to reason being 'SKB_NOT_DROPPED_YET' (0). [...]
[1]
WARNING: CPU: 0 PID: 181 at net/core/skbuff.c:1082 kfree_skb_reason+0x38/0x130
Modules linked in:
CPU: 0 PID: 181 Comm: mausezahn Not tainted 6.6.0-rc6-custom-ge43e6d9582e0 #682
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.2-1.fc37 04/01/2014
RIP: 0010:kfree_skb_reason+0x38/0x130
[...]
Call Trace:
<IRQ>
__netif_receive_skb_core.constprop.0+0x837/0xdb0
__netif_receive_skb_one_core+0x3c/0x70
process_backlog+0x95/0x130
__napi_poll+0x25/0x1b0
net_rx_action+0x29b/0x310
__do_softirq+0xc0/0x29b
do_softirq+0x43/0x60
</IRQ>
[2]
#!/bin/bash
ip link add name veth0 type veth peer name veth1
ip link set dev veth0 up
ip link set dev veth1 up
tc qdisc add dev veth1 clsact
tc filter add dev veth1 ingress pref 1 proto all flower dst_mac 00:11:22:33:44:55 action drop
mausezahn veth0 -a own -b 00:11:22:33:44:55 -q -c 1
What happens is that inside most classifiers the tcf_result is copied over
from a filter template e.g. *res = f->res which then implicitly overrides
the prior SKB_DROP_REASON_TC_{INGRESS,EGRESS} default drop code which was
set via sch_handle_{ingress,egress}() for kfree_skb_reason().
Commit text above copied verbatim from Daniel. The general idea of the patch
is not very different from what Ido originally posted but instead done at the
cls_api codepath.
Fixes:
|
||
Linus Torvalds
|
c9b93cafb6 |
Bunch of small fixes:
- three W=1 warning fixes: the NULL -> "" replacement isn't trivial but is serialized identically by the protocol layer and has been tested - one syzbot/KCSAN datarace annotation where we don't care about users messing with the fd they passed to mount -t 9p - removing a declaration without implementation - yet another race fix for trans_fd around connection close: the 'err' field is also used in potentially racy calls and this isn't complete, but it's better than what we have. - and finally a theorical memory leak fix on serialization failure -----BEGIN PGP SIGNATURE----- iQIzBAABCAAdFiEE/IPbcYBuWt0zoYhOq06b7GqY5nAFAmVFmAcACgkQq06b7GqY 5nASEg/9Fdtd9B//G+t/gQm0pdZIGoV+KbovWRrO4w3IIfENe8OP3A+8uZhmdij4 p1tYUfyOPjMTxvZlmEArYjyiIkB5SsdYVMiOY6WfFRo3XEyMirdLDXa7beSnFLAs wuk5rAlndGIg+HwzXFD4WpKU5By5r6hnMgYeQ98bwB1bsF5ENZL+0VctFOd1H1zQ zwFChfsv4do3LfA2BssseTaH3PAniqs/X8gvDfslCL45YhitunzrB5C8pCOLpiA6 j6+7iDBeh7H/S+xTG2h+NBdPh+emalex1GHckZHNaTyEWNGcnJnOG8qPy+ufNgyX G1Sxr80dX7oAXD74LqPfoG4IsgXsB/0sLnjFNxbfpcmGoka/GTWzV0O+9LauhN9X Nu3OnbOBM+VZR3VA7EpqCEbf5CAduQklWameZHGqqH8vr3wGJSPXs3eEpTnXnXmK yIUdFWvTL61Il/RSk1CFjlsxXh42tjNqlJobiOru3+zhmwFw3yffFnq3Mxn1Y+Mi 4jet/E1VD7NB6nlTqRuaMWbWBC037pMgXfFe4BGbAynKLPbnBD8fjDKkbxoU66Qw ud5UabfuikR1ah5te8l1F956ij88HgKFuufQ6vqc98be3EqcIkXSe0/+fgXMcU55 hPMmfLAP4g5p5VEi6kbOZdVAWqaE6EO1x6EzrQ+VCEg5hHJx0Ew= =ZD9A -----END PGP SIGNATURE----- Merge tag '9p-for-6.7-rc1' of https://github.com/martinetd/linux Pull 9p updates from Dominique Martinet: A bunch of small fixes: - three W=1 warning fixes: the NULL -> "" replacement isn't trivial but is serialized identically by the protocol layer and has been tested - one syzbot/KCSAN datarace annotation where we don't care about users messing with the fd they passed to mount -t 9p - removing a declaration without implementation - yet another race fix for trans_fd around connection close: the 'err' field is also used in potentially racy calls and this isn't complete, but it's better than what we had - and finally a theorical memory leak fix on serialization failure" * tag '9p-for-6.7-rc1' of https://github.com/martinetd/linux: 9p/net: fix possible memory leak in p9_check_errors() 9p/fs: add MODULE_DESCRIPTION 9p/net: xen: fix false positive printf format overflow warning 9p: v9fs_listxattr: fix %s null argument warning 9p/trans_fd: Annotate data-racy writes to file::f_flags fs/9p: Remove unused function declaration v9fs_inode2stat() 9p/trans_fd: avoid sending req to a cancelled conn |
||
Linus Torvalds
|
e392ea4d4d |
s390 updates for the 6.7 merge window
- Get rid of private VM_FAULT flags - Add word-at-a-time implementation - Add DCACHE_WORD_ACCESS support - Cleanup control register handling - Disallow CPU hotplug of CPU 0 to simplify its handling complexity, following a similar restriction in x86 - Optimize pai crypto map allocation - Update the list of crypto express EP11 coprocessor operation modes - Fixes and improvements for secure guests AP pass-through - Several fixes to address incorrect page marking for address translation with the "cmma no-dat" feature, preventing potential incorrect guest TLB flushes - Fix early IPI handling - Several virtual vs physical address confusion fixes - Various small fixes and improvements all over the code -----BEGIN PGP SIGNATURE----- iQEzBAABCAAdFiEE3QHqV+H2a8xAv27vjYWKoQLXFBgFAmVFLkYACgkQjYWKoQLX FBgxRwf9FSNFwLcbYbG1x94rUUHnbaiyJWCezp3/ypr+m+qDvQatLYc75SxwrH0y ocSygqvtVryVkWAKKvOHF1Kg5R2Fedmzf5wuVTXglfPqE1ZgMGdwS/LtknIoz556 twZJIpFzUFt5xaljpTCZJanLMvy/npl0bilezhNGl6v7N5rsWLbfK6vsPMDm+TTZ yscapOsk8Z16NjXq0FETS5JHG65jjj9rkRfb0qD8SOFhti0fR9MSP2xeRXrDMDZE IWXog5usx2DS6VX2HnxA8O7z1hhuTccJ1K1+rYqbb0Fwccqi7QaGZXEvocYEvlvy lVe3/jbyn27hUoypHcfVCAVxdoOrnw== =SMOp -----END PGP SIGNATURE----- Merge tag 's390-6.7-1' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux Pull s390 updates from Vasily Gorbik: - Get rid of private VM_FAULT flags - Add word-at-a-time implementation - Add DCACHE_WORD_ACCESS support - Cleanup control register handling - Disallow CPU hotplug of CPU 0 to simplify its handling complexity, following a similar restriction in x86 - Optimize pai crypto map allocation - Update the list of crypto express EP11 coprocessor operation modes - Fixes and improvements for secure guests AP pass-through - Several fixes to address incorrect page marking for address translation with the "cmma no-dat" feature, preventing potential incorrect guest TLB flushes - Fix early IPI handling - Several virtual vs physical address confusion fixes - Various small fixes and improvements all over the code * tag 's390-6.7-1' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: (74 commits) s390/cio: replace deprecated strncpy with strscpy s390/sclp: replace deprecated strncpy with strtomem s390/cio: fix virtual vs physical address confusion s390/cio: export CMG value as decimal s390: delete the unused store_prefix() function s390/cmma: fix handling of swapper_pg_dir and invalid_pg_dir s390/cmma: fix detection of DAT pages s390/sclp: handle default case in sclp memory notifier s390/pai_crypto: remove per-cpu variable assignement in event initialization s390/pai: initialize event count once at initialization s390/pai_crypto: use PERF_ATTACH_TASK define for per task detection s390/mm: add missing arch_set_page_dat() call to gmap allocations s390/mm: add missing arch_set_page_dat() call to vmem_crst_alloc() s390/cmma: fix initial kernel address space page table walk s390/diag: add missing virt_to_phys() translation to diag224() s390/mm,fault: move VM_FAULT_ERROR handling to do_exception() s390/mm,fault: remove VM_FAULT_BADMAP and VM_FAULT_BADACCESS s390/mm,fault: remove VM_FAULT_SIGNAL s390/mm,fault: remove VM_FAULT_BADCONTEXT s390/mm,fault: simplify kfence fault handling ... |
||
Jakub Kicinski
|
016b9332a3 |
netlink: fill in missing MODULE_DESCRIPTION()
W=1 builds now warn if a module is built without a MODULE_DESCRIPTION(). Fill it in for sock_diag. Signed-off-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net> |
||
Eric Dumazet
|
cdbab62366 |
tcp: fix fastopen code vs usec TS
After blamed commit, TFO client-ack-dropped-then-recovery-ms-timestamps
packetdrill test failed.
David Morley and Neal Cardwell started investigating and Neal pointed
that we had :
tcp_conn_request()
tcp_try_fastopen()
-> tcp_fastopen_create_child
-> child = inet_csk(sk)->icsk_af_ops->syn_recv_sock()
-> tcp_create_openreq_child()
-> copy req_usec_ts from req:
newtp->tcp_usec_ts = treq->req_usec_ts;
// now the new TFO server socket always does usec TS, no matter
// what the route options are...
send_synack()
-> tcp_make_synack()
// disable tcp_rsk(req)->req_usec_ts if route option is not present:
if (tcp_rsk(req)->req_usec_ts < 0)
tcp_rsk(req)->req_usec_ts = dst_tcp_usec_ts(dst);
tcp_conn_request() has the initial dst, we can initialize
tcp_rsk(req)->req_usec_ts there instead of later in send_synack();
This means tcp_rsk(req)->req_usec_ts can be a boolean.
Many thanks to David an Neal for their help.
Fixes:
|
||
Linus Torvalds
|
8f6f76a6a2 |
As usual, lots of singleton and doubleton patches all over the tree and
there's little I can say which isn't in the individual changelogs. The lengthier patch series are - "kdump: use generic functions to simplify crashkernel reservation in arch", from Baoquan He. This is mainly cleanups and consolidation of the "crashkernel=" kernel parameter handling. - After much discussion, David Laight's "minmax: Relax type checks in min() and max()" is here. Hopefully reduces some typecasting and the use of min_t() and max_t(). - A group of patches from Oleg Nesterov which clean up and slightly fix our handling of reads from /proc/PID/task/... and which remove task_struct.therad_group. -----BEGIN PGP SIGNATURE----- iHUEABYIAB0WIQTTMBEPP41GrTpTJgfdBJ7gKXxAjgUCZUQP9wAKCRDdBJ7gKXxA jmOAAQDh8sxagQYocoVsSm28ICqXFeaY9Co1jzBIDdNesAvYVwD/c2DHRqJHEiS4 63BNcG3+hM9nwGJHb5lyh5m79nBMRg0= =On4u -----END PGP SIGNATURE----- Merge tag 'mm-nonmm-stable-2023-11-02-14-08' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm Pull non-MM updates from Andrew Morton: "As usual, lots of singleton and doubleton patches all over the tree and there's little I can say which isn't in the individual changelogs. The lengthier patch series are - 'kdump: use generic functions to simplify crashkernel reservation in arch', from Baoquan He. This is mainly cleanups and consolidation of the 'crashkernel=' kernel parameter handling - After much discussion, David Laight's 'minmax: Relax type checks in min() and max()' is here. Hopefully reduces some typecasting and the use of min_t() and max_t() - A group of patches from Oleg Nesterov which clean up and slightly fix our handling of reads from /proc/PID/task/... and which remove task_struct.thread_group" * tag 'mm-nonmm-stable-2023-11-02-14-08' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (64 commits) scripts/gdb/vmalloc: disable on no-MMU scripts/gdb: fix usage of MOD_TEXT not defined when CONFIG_MODULES=n .mailmap: add address mapping for Tomeu Vizoso mailmap: update email address for Claudiu Beznea tools/testing/selftests/mm/run_vmtests.sh: lower the ptrace permissions .mailmap: map Benjamin Poirier's address scripts/gdb: add lx_current support for riscv ocfs2: fix a spelling typo in comment proc: test ProtectionKey in proc-empty-vm test proc: fix proc-empty-vm test with vsyscall fs/proc/base.c: remove unneeded semicolon do_io_accounting: use sig->stats_lock do_io_accounting: use __for_each_thread() ocfs2: replace BUG_ON() at ocfs2_num_free_extents() with ocfs2_error() ocfs2: fix a typo in a comment scripts/show_delta: add __main__ judgement before main code treewide: mark stuff as __ro_after_init fs: ocfs2: check status values proc: test /proc/${pid}/statm compiler.h: move __is_constexpr() to compiler.h ... |
||
Linus Torvalds
|
ecae0bd517 |
Many singleton patches against the MM code. The patch series which are
included in this merge do the following: - Kemeng Shi has contributed some compation maintenance work in the series "Fixes and cleanups to compaction". - Joel Fernandes has a patchset ("Optimize mremap during mutual alignment within PMD") which fixes an obscure issue with mremap()'s pagetable handling during a subsequent exec(), based upon an implementation which Linus suggested. - More DAMON/DAMOS maintenance and feature work from SeongJae Park i the following patch series: mm/damon: misc fixups for documents, comments and its tracepoint mm/damon: add a tracepoint for damos apply target regions mm/damon: provide pseudo-moving sum based access rate mm/damon: implement DAMOS apply intervals mm/damon/core-test: Fix memory leaks in core-test mm/damon/sysfs-schemes: Do DAMOS tried regions update for only one apply interval - In the series "Do not try to access unaccepted memory" Adrian Hunter provides some fixups for the recently-added "unaccepted memory' feature. To increase the feature's checking coverage. "Plug a few gaps where RAM is exposed without checking if it is unaccepted memory". - In the series "cleanups for lockless slab shrink" Qi Zheng has done some maintenance work which is preparation for the lockless slab shrinking code. - Qi Zheng has redone the earlier (and reverted) attempt to make slab shrinking lockless in the series "use refcount+RCU method to implement lockless slab shrink". - David Hildenbrand contributes some maintenance work for the rmap code in the series "Anon rmap cleanups". - Kefeng Wang does more folio conversions and some maintenance work in the migration code. Series "mm: migrate: more folio conversion and unification". - Matthew Wilcox has fixed an issue in the buffer_head code which was causing long stalls under some heavy memory/IO loads. Some cleanups were added on the way. Series "Add and use bdev_getblk()". - In the series "Use nth_page() in place of direct struct page manipulation" Zi Yan has fixed a potential issue with the direct manipulation of hugetlb page frames. - In the series "mm: hugetlb: Skip initialization of gigantic tail struct pages if freed by HVO" has improved our handling of gigantic pages in the hugetlb vmmemmep optimizaton code. This provides significant boot time improvements when significant amounts of gigantic pages are in use. - Matthew Wilcox has sent the series "Small hugetlb cleanups" - code rationalization and folio conversions in the hugetlb code. - Yin Fengwei has improved mlock()'s handling of large folios in the series "support large folio for mlock" - In the series "Expose swapcache stat for memcg v1" Liu Shixin has added statistics for memcg v1 users which are available (and useful) under memcg v2. - Florent Revest has enhanced the MDWE (Memory-Deny-Write-Executable) prctl so that userspace may direct the kernel to not automatically propagate the denial to child processes. The series is named "MDWE without inheritance". - Kefeng Wang has provided the series "mm: convert numa balancing functions to use a folio" which does what it says. - In the series "mm/ksm: add fork-exec support for prctl" Stefan Roesch makes is possible for a process to propagate KSM treatment across exec(). - Huang Ying has enhanced memory tiering's calculation of memory distances. This is used to permit the dax/kmem driver to use "high bandwidth memory" in addition to Optane Data Center Persistent Memory Modules (DCPMM). The series is named "memory tiering: calculate abstract distance based on ACPI HMAT" - In the series "Smart scanning mode for KSM" Stefan Roesch has optimized KSM by teaching it to retain and use some historical information from previous scans. - Yosry Ahmed has fixed some inconsistencies in memcg statistics in the series "mm: memcg: fix tracking of pending stats updates values". - In the series "Implement IOCTL to get and optionally clear info about PTEs" Peter Xu has added an ioctl to /proc/<pid>/pagemap which permits us to atomically read-then-clear page softdirty state. This is mainly used by CRIU. - Hugh Dickins contributed the series "shmem,tmpfs: general maintenance" - a bunch of relatively minor maintenance tweaks to this code. - Matthew Wilcox has increased the use of the VMA lock over file-backed page faults in the series "Handle more faults under the VMA lock". Some rationalizations of the fault path became possible as a result. - In the series "mm/rmap: convert page_move_anon_rmap() to folio_move_anon_rmap()" David Hildenbrand has implemented some cleanups and folio conversions. - In the series "various improvements to the GUP interface" Lorenzo Stoakes has simplified and improved the GUP interface with an eye to providing groundwork for future improvements. - Andrey Konovalov has sent along the series "kasan: assorted fixes and improvements" which does those things. - Some page allocator maintenance work from Kemeng Shi in the series "Two minor cleanups to break_down_buddy_pages". - In thes series "New selftest for mm" Breno Leitao has developed another MM self test which tickles a race we had between madvise() and page faults. - In the series "Add folio_end_read" Matthew Wilcox provides cleanups and an optimization to the core pagecache code. - Nhat Pham has added memcg accounting for hugetlb memory in the series "hugetlb memcg accounting". - Cleanups and rationalizations to the pagemap code from Lorenzo Stoakes, in the series "Abstract vma_merge() and split_vma()". - Audra Mitchell has fixed issues in the procfs page_owner code's new timestamping feature which was causing some misbehaviours. In the series "Fix page_owner's use of free timestamps". - Lorenzo Stoakes has fixed the handling of new mappings of sealed files in the series "permit write-sealed memfd read-only shared mappings". - Mike Kravetz has optimized the hugetlb vmemmap optimization in the series "Batch hugetlb vmemmap modification operations". - Some buffer_head folio conversions and cleanups from Matthew Wilcox in the series "Finish the create_empty_buffers() transition". - As a page allocator performance optimization Huang Ying has added automatic tuning to the allocator's per-cpu-pages feature, in the series "mm: PCP high auto-tuning". - Roman Gushchin has contributed the patchset "mm: improve performance of accounted kernel memory allocations" which improves their performance by ~30% as measured by a micro-benchmark. - folio conversions from Kefeng Wang in the series "mm: convert page cpupid functions to folios". - Some kmemleak fixups in Liu Shixin's series "Some bugfix about kmemleak". - Qi Zheng has improved our handling of memoryless nodes by keeping them off the allocation fallback list. This is done in the series "handle memoryless nodes more appropriately". - khugepaged conversions from Vishal Moola in the series "Some khugepaged folio conversions". -----BEGIN PGP SIGNATURE----- iHUEABYIAB0WIQTTMBEPP41GrTpTJgfdBJ7gKXxAjgUCZULEMwAKCRDdBJ7gKXxA jhQHAQCYpD3g849x69DmHnHWHm/EHQLvQmRMDeYZI+nx/sCJOwEAw4AKg0Oemv9y FgeUPAD1oasg6CP+INZvCj34waNxwAc= =E+Y4 -----END PGP SIGNATURE----- Merge tag 'mm-stable-2023-11-01-14-33' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm Pull MM updates from Andrew Morton: "Many singleton patches against the MM code. The patch series which are included in this merge do the following: - Kemeng Shi has contributed some compation maintenance work in the series 'Fixes and cleanups to compaction' - Joel Fernandes has a patchset ('Optimize mremap during mutual alignment within PMD') which fixes an obscure issue with mremap()'s pagetable handling during a subsequent exec(), based upon an implementation which Linus suggested - More DAMON/DAMOS maintenance and feature work from SeongJae Park i the following patch series: mm/damon: misc fixups for documents, comments and its tracepoint mm/damon: add a tracepoint for damos apply target regions mm/damon: provide pseudo-moving sum based access rate mm/damon: implement DAMOS apply intervals mm/damon/core-test: Fix memory leaks in core-test mm/damon/sysfs-schemes: Do DAMOS tried regions update for only one apply interval - In the series 'Do not try to access unaccepted memory' Adrian Hunter provides some fixups for the recently-added 'unaccepted memory' feature. To increase the feature's checking coverage. 'Plug a few gaps where RAM is exposed without checking if it is unaccepted memory' - In the series 'cleanups for lockless slab shrink' Qi Zheng has done some maintenance work which is preparation for the lockless slab shrinking code - Qi Zheng has redone the earlier (and reverted) attempt to make slab shrinking lockless in the series 'use refcount+RCU method to implement lockless slab shrink' - David Hildenbrand contributes some maintenance work for the rmap code in the series 'Anon rmap cleanups' - Kefeng Wang does more folio conversions and some maintenance work in the migration code. Series 'mm: migrate: more folio conversion and unification' - Matthew Wilcox has fixed an issue in the buffer_head code which was causing long stalls under some heavy memory/IO loads. Some cleanups were added on the way. Series 'Add and use bdev_getblk()' - In the series 'Use nth_page() in place of direct struct page manipulation' Zi Yan has fixed a potential issue with the direct manipulation of hugetlb page frames - In the series 'mm: hugetlb: Skip initialization of gigantic tail struct pages if freed by HVO' has improved our handling of gigantic pages in the hugetlb vmmemmep optimizaton code. This provides significant boot time improvements when significant amounts of gigantic pages are in use - Matthew Wilcox has sent the series 'Small hugetlb cleanups' - code rationalization and folio conversions in the hugetlb code - Yin Fengwei has improved mlock()'s handling of large folios in the series 'support large folio for mlock' - In the series 'Expose swapcache stat for memcg v1' Liu Shixin has added statistics for memcg v1 users which are available (and useful) under memcg v2 - Florent Revest has enhanced the MDWE (Memory-Deny-Write-Executable) prctl so that userspace may direct the kernel to not automatically propagate the denial to child processes. The series is named 'MDWE without inheritance' - Kefeng Wang has provided the series 'mm: convert numa balancing functions to use a folio' which does what it says - In the series 'mm/ksm: add fork-exec support for prctl' Stefan Roesch makes is possible for a process to propagate KSM treatment across exec() - Huang Ying has enhanced memory tiering's calculation of memory distances. This is used to permit the dax/kmem driver to use 'high bandwidth memory' in addition to Optane Data Center Persistent Memory Modules (DCPMM). The series is named 'memory tiering: calculate abstract distance based on ACPI HMAT' - In the series 'Smart scanning mode for KSM' Stefan Roesch has optimized KSM by teaching it to retain and use some historical information from previous scans - Yosry Ahmed has fixed some inconsistencies in memcg statistics in the series 'mm: memcg: fix tracking of pending stats updates values' - In the series 'Implement IOCTL to get and optionally clear info about PTEs' Peter Xu has added an ioctl to /proc/<pid>/pagemap which permits us to atomically read-then-clear page softdirty state. This is mainly used by CRIU - Hugh Dickins contributed the series 'shmem,tmpfs: general maintenance', a bunch of relatively minor maintenance tweaks to this code - Matthew Wilcox has increased the use of the VMA lock over file-backed page faults in the series 'Handle more faults under the VMA lock'. Some rationalizations of the fault path became possible as a result - In the series 'mm/rmap: convert page_move_anon_rmap() to folio_move_anon_rmap()' David Hildenbrand has implemented some cleanups and folio conversions - In the series 'various improvements to the GUP interface' Lorenzo Stoakes has simplified and improved the GUP interface with an eye to providing groundwork for future improvements - Andrey Konovalov has sent along the series 'kasan: assorted fixes and improvements' which does those things - Some page allocator maintenance work from Kemeng Shi in the series 'Two minor cleanups to break_down_buddy_pages' - In thes series 'New selftest for mm' Breno Leitao has developed another MM self test which tickles a race we had between madvise() and page faults - In the series 'Add folio_end_read' Matthew Wilcox provides cleanups and an optimization to the core pagecache code - Nhat Pham has added memcg accounting for hugetlb memory in the series 'hugetlb memcg accounting' - Cleanups and rationalizations to the pagemap code from Lorenzo Stoakes, in the series 'Abstract vma_merge() and split_vma()' - Audra Mitchell has fixed issues in the procfs page_owner code's new timestamping feature which was causing some misbehaviours. In the series 'Fix page_owner's use of free timestamps' - Lorenzo Stoakes has fixed the handling of new mappings of sealed files in the series 'permit write-sealed memfd read-only shared mappings' - Mike Kravetz has optimized the hugetlb vmemmap optimization in the series 'Batch hugetlb vmemmap modification operations' - Some buffer_head folio conversions and cleanups from Matthew Wilcox in the series 'Finish the create_empty_buffers() transition' - As a page allocator performance optimization Huang Ying has added automatic tuning to the allocator's per-cpu-pages feature, in the series 'mm: PCP high auto-tuning' - Roman Gushchin has contributed the patchset 'mm: improve performance of accounted kernel memory allocations' which improves their performance by ~30% as measured by a micro-benchmark - folio conversions from Kefeng Wang in the series 'mm: convert page cpupid functions to folios' - Some kmemleak fixups in Liu Shixin's series 'Some bugfix about kmemleak' - Qi Zheng has improved our handling of memoryless nodes by keeping them off the allocation fallback list. This is done in the series 'handle memoryless nodes more appropriately' - khugepaged conversions from Vishal Moola in the series 'Some khugepaged folio conversions'" [ bcachefs conflicts with the dynamically allocated shrinkers have been resolved as per Stephen Rothwell in https://lore.kernel.org/all/20230913093553.4290421e@canb.auug.org.au/ with help from Qi Zheng. The clone3 test filtering conflict was half-arsed by yours truly ] * tag 'mm-stable-2023-11-01-14-33' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (406 commits) mm/damon/sysfs: update monitoring target regions for online input commit mm/damon/sysfs: remove requested targets when online-commit inputs selftests: add a sanity check for zswap Documentation: maple_tree: fix word spelling error mm/vmalloc: fix the unchecked dereference warning in vread_iter() zswap: export compression failure stats Documentation: ubsan: drop "the" from article title mempolicy: migration attempt to match interleave nodes mempolicy: mmap_lock is not needed while migrating folios mempolicy: alloc_pages_mpol() for NUMA policy without vma mm: add page_rmappable_folio() wrapper mempolicy: remove confusing MPOL_MF_LAZY dead code mempolicy: mpol_shared_policy_init() without pseudo-vma mempolicy trivia: use pgoff_t in shared mempolicy tree mempolicy trivia: slightly more consistent naming mempolicy trivia: delete those ancient pr_debug()s mempolicy: fix migrate_pages(2) syscall return nr_failed kernfs: drop shared NUMA mempolicy hooks hugetlbfs: drop shared NUMA mempolicy pretence mm/damon/sysfs-test: add a unit test for damon_sysfs_set_targets() ... |
||
Linus Torvalds
|
bc3012f4e3 |
This update includes the following changes:
API: - Add virtual-address based lskcipher interface. - Optimise ahash/shash performance in light of costly indirect calls. - Remove ahash alignmask attribute. Algorithms: - Improve AES/XTS performance of 6-way unrolling for ppc. - Remove some uses of obsolete algorithms (md4, md5, sha1). - Add FIPS 202 SHA-3 support in pkcs1pad. - Add fast path for single-page messages in adiantum. - Remove zlib-deflate. Drivers: - Add support for S4 in meson RNG driver. - Add STM32MP13x support in stm32. - Add hwrng interface support in qcom-rng. - Add support for deflate algorithm in hisilicon/zip. -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEn51F/lCuNhUwmDeSxycdCkmxi6cFAmVB3vgACgkQxycdCkmx i6dsOBAAykbnX8BpnpnOXYywE9ZWrl98rAk51MK0N9olZNfg78zRPIv7fFxFdC20 SDJrDSNPmn0Qvaa5e0EfoAdklsm0k2GkXL/BwPKMKWUsyIoJVYI3WrBMnjBy9xMp yfME+h0bKoXJCZKnYkIUSGUejmUPSyRlEylrXoFlH/VWYwAaii/x9zwreQoF+0LR KI24A1q8AYs6Dw9HSfndaAub9GOzrqKYs6fSaMG+77Y4UC5aoi5J9Bp2G3uVyHay x/0bZtIxKXS9wn+LeG/3GspX23x/I5VwBOdAoMigrYmAIaIg5qgyMszudltTAs4R zF1Kh7WsnM5+vpnBSeigzo+/GGOU3QTz8y3tBTg+3ZR7GWGOwQLiizhOYqCyOfAH pIm6c++sZw/OOHiL69Nt4HeLKzGNYYWk3s4X/B/6cqoouPfOsfBaQobZNx9zfy7q ZNEvSVBjrFX/L6wDSotny1LTWLUNjHbmLaMV5uQZ/SQKEtv19fp2Dl7SsLkHH+3v ldOAwfoJR6QcSwz3Ez02TUAvQhtP172Hnxi7u44eiZu2aUboLhCFr7aEU6kVdBCx 1rIRVHD1oqlOEDRwPRXzhF3I8R4QDORJIxZ6UUhg7yueuI+XCGDsBNC+LqBrBmSR IbdjqmSDUBhJyM5yMnt1VFYhqKQ/ZzwZ3JQviwW76Es9pwEIolM= =IZmR -----END PGP SIGNATURE----- Merge tag 'v6.7-p1' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 Pull crypto updates from Herbert Xu: "API: - Add virtual-address based lskcipher interface - Optimise ahash/shash performance in light of costly indirect calls - Remove ahash alignmask attribute Algorithms: - Improve AES/XTS performance of 6-way unrolling for ppc - Remove some uses of obsolete algorithms (md4, md5, sha1) - Add FIPS 202 SHA-3 support in pkcs1pad - Add fast path for single-page messages in adiantum - Remove zlib-deflate Drivers: - Add support for S4 in meson RNG driver - Add STM32MP13x support in stm32 - Add hwrng interface support in qcom-rng - Add support for deflate algorithm in hisilicon/zip" * tag 'v6.7-p1' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (283 commits) crypto: adiantum - flush destination page before unmapping crypto: testmgr - move pkcs1pad(rsa,sha3-*) to correct place Documentation/module-signing.txt: bring up to date module: enable automatic module signing with FIPS 202 SHA-3 crypto: asymmetric_keys - allow FIPS 202 SHA-3 signatures crypto: rsa-pkcs1pad - Add FIPS 202 SHA-3 support crypto: FIPS 202 SHA-3 register in hash info for IMA x509: Add OIDs for FIPS 202 SHA-3 hash and signatures crypto: ahash - optimize performance when wrapping shash crypto: ahash - check for shash type instead of not ahash type crypto: hash - move "ahash wrapping shash" functions to ahash.c crypto: talitos - stop using crypto_ahash::init crypto: chelsio - stop using crypto_ahash::init crypto: ahash - improve file comment crypto: ahash - remove struct ahash_request_priv crypto: ahash - remove crypto_ahash_alignmask crypto: gcm - stop using alignmask of ahash crypto: chacha20poly1305 - stop using alignmask of ahash crypto: ccm - stop using alignmask of ahash net: ipv6: stop checking crypto_ahash_alignmask ... |