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da9e915eaf
linux-next/net
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John Fastabend da9e915eaf bpf, sockmap: Do not inc copied_seq when PEEK flag set 
When data is peek'd off the receive queue we shouldn't considered it
copied from tcp_sock side. When we increment copied_seq this will confuse
tcp_data_ready() because copied_seq can be arbitrarily increased. From
application side it results in poll() operations not waking up when
expected.

Notice tcp stack without BPF recvmsg programs also does not increment
copied_seq.

We broke this when we moved copied_seq into recvmsg to only update when
actual copy was happening. But, it wasn't working correctly either before
because the tcp_data_ready() tried to use the copied_seq value to see
if data was read by user yet. See fixes tags.

Fixes: e5c6de5fa0 ("bpf, sockmap: Incorrectly handling copied_seq")
Fixes: 04919bed94 ("tcp: Introduce tcp_read_skb()")
Signed-off-by: John Fastabend <john.fastabend@gmail.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Reviewed-by: Jakub Sitnicki <jakub@cloudflare.com>
Link: https://lore.kernel.org/bpf/20230926035300.135096-3-john.fastabend@gmail.com
2023-09-29 17:05:00 +02:00
..
6lowpan
9p net: annotate data-races around sock->ops 2023-08-09 15:32:43 -07:00
802
8021q Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2023-08-18 12:44:56 -07:00
appletalk sock: Remove ->sendpage*() in favour of sendmsg(MSG_SPLICE_PAGES) 2023-06-24 15:50:13 -07:00
atm sock: Remove ->sendpage*() in favour of sendmsg(MSG_SPLICE_PAGES) 2023-06-24 15:50:13 -07:00
ax25 ax25: Kconfig: Update link for linux-ax25.org 2023-09-18 12:56:58 +01:00
batman-adv Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2023-08-24 10:51:39 -07:00
bluetooth TTY/Serial driver changes for 6.6-rc1 2023-09-01 09:38:00 -07:00
bpf bpf: Prevent inlining of bpf_fentry_test7() 2023-08-30 08:36:17 +02:00
bpfilter
bridge sysctl-6.6-rc1 2023-08-29 17:39:15 -07:00
caif sock: Remove ->sendpage*() in favour of sendmsg(MSG_SPLICE_PAGES) 2023-06-24 15:50:13 -07:00
can net: annotate data-races around sk->sk_tsflags 2023-09-01 07:27:33 +01:00
ceph libceph: do not include crypto/algapi.h 2023-08-24 11:24:37 +02:00
core net: core: Use the bitmap API to allocate bitmaps 2023-09-16 13:32:30 +01:00
dcb net: dcb: choose correct policy to parse DCB_ATTR_BCN 2023-08-01 21:07:46 -07:00
dccp dccp: fix dccp_v4_err()/dccp_v6_err() again 2023-09-18 07:10:31 +01:00
devlink devlink: move devlink_notify_register/unregister() to dev.c 2023-08-28 08:02:24 -07:00
dns_resolver
dsa net: dsa: mark parsed interface mode for legacy switch drivers 2023-08-09 13:08:09 -07:00
ethernet
ethtool ethtool: netlink: always pass genl_info to .prepare_data 2023-08-15 15:01:03 -07:00
handshake net/handshake: fix null-ptr-deref in handshake_nl_done_doit() 2023-09-01 07:25:14 +01:00
hsr net: hsr: Add __packed to struct hsr_sup_tlv. 2023-09-18 08:26:19 +01:00
ieee802154 sysctl-6.6-rc1 2023-08-29 17:39:15 -07:00
ife
ipv4 bpf, sockmap: Do not inc copied_seq when PEEK flag set 2023-09-29 17:05:00 +02:00
ipv6 Including fixes from netfilter and bpf. 2023-09-07 18:33:07 -07:00
iucv
kcm kcm: Fix error handling for SOCK_DGRAM in kcm_sendmsg(). 2023-09-14 10:43:51 +02:00
key Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2023-08-18 12:44:56 -07:00
l2tp inet: introduce inet->inet_flags 2023-08-16 11:09:16 +01:00
l3mdev
lapb
llc net/llc/llc_conn.c: fix 4 instances of -Wmissing-variable-declarations 2023-08-09 15:34:28 -07:00
mac80211 wireless-next patches for v6.6 2023-08-25 18:35:09 -07:00
mac802154 Core WPAN changes: 2023-06-24 15:41:46 -07:00
mctp sock: Remove ->sendpage*() in favour of sendmsg(MSG_SPLICE_PAGES) 2023-06-24 15:50:13 -07:00
mpls networking: Update to register_net_sysctl_sz 2023-08-15 15:26:18 -07:00
mptcp mptcp: fix dangling connection hang-up 2023-09-18 12:47:56 +01:00
ncsi ncsi: Propagate carrier gain/loss events to the NCSI controller 2023-09-18 07:06:05 +01:00
netfilter Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf 2023-09-16 11:16:00 +01:00
netlabel netlabel: Remove unused declaration netlbl_cipsov4_doi_free() 2023-08-02 12:28:22 -07:00
netlink genetlink: add a family pointer to struct genl_info 2023-08-15 15:01:03 -07:00
netrom netrom: Deny concurrent connect(). 2023-08-28 06:58:46 +01:00
nfc TTY/Serial driver changes for 6.6-rc1 2023-09-01 09:38:00 -07:00
nsh net: move gso declarations and functions to their own files 2023-06-10 00:11:41 -07:00
openvswitch Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2023-08-18 12:44:56 -07:00
packet Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2023-08-10 14:10:53 -07:00
phonet sock: Remove ->sendpage*() in favour of sendmsg(MSG_SPLICE_PAGES) 2023-06-24 15:50:13 -07:00
psample
qrtr net: qrtr: Handle IPCR control port format of older targets 2023-07-17 09:02:30 +01:00
rds sysctl-6.6-rc1 2023-08-29 17:39:15 -07:00
rfkill
rose sock: Remove ->sendpage*() in favour of sendmsg(MSG_SPLICE_PAGES) 2023-06-24 15:50:13 -07:00
rxrpc Networking changes for 6.5. 2023-06-28 16:43:10 -07:00
sched net: sched: sch_qfq: Fix UAF in qfq_dequeue() 2023-09-05 08:54:12 +02:00
sctp Including fixes from netfilter and bpf. 2023-09-07 18:33:07 -07:00
smc net/smc: use smc_lgr_list.lock to protect smc_lgr_list.list iterate in smcr_port_add 2023-09-10 19:31:42 +01:00
strparser
sunrpc NFS CLient Updates for Linux 6.6 2023-08-31 15:36:41 -07:00
switchdev net: switchdev: Add a helper to replay objects on a bridge port 2023-07-21 08:54:03 +01:00
tipc - Some swap cleanups from Ma Wupeng ("fix WARN_ON in add_to_avail_list") 2023-08-29 14:25:26 -07:00
tls net/tls: do not free tls_rec on async operation in bpf_exec_tx_verdict() 2023-09-12 09:51:49 +02:00
unix Including fixes from netfilter and bpf. 2023-09-07 18:33:07 -07:00
vmw_vsock vsock: Remove unused function declarations 2023-07-31 14:41:08 -07:00
wireless wifi: nl80211: Remove unused declaration nl80211_pmsr_dump_results() 2023-08-22 21:40:40 +02:00
x25 sock: Remove ->sendpage*() in favour of sendmsg(MSG_SPLICE_PAGES) 2023-06-24 15:50:13 -07:00
xdp xsk: Fix xsk_diag use-after-free error during socket cleanup 2023-08-31 13:21:11 +02:00
xfrm sysctl-6.6-rc1 2023-08-29 17:39:15 -07:00
compat.c
devres.c
Kconfig bpf: Add fd-based tcx multi-prog infra with link support 2023-07-19 10:07:27 -07:00
Kconfig.debug
Makefile
socket.c Including fixes from netfilter and bpf. 2023-09-07 18:33:07 -07:00
sysctl_net.c sysctl: Add size to register_net_sysctl function 2023-08-15 15:26:17 -07:00