linux/net
Vlad Buslov 052417e8b3 net/sched: cls_api: Fix lockup on flushing explicitly created chain
[ Upstream commit c9a82bec02 ]

Mingshuai Ren reports:

When a new chain is added by using tc, one soft lockup alarm will be
 generated after delete the prio 0 filter of the chain. To reproduce
 the problem, perform the following steps:
(1) tc qdisc add dev eth0 root handle 1: htb default 1
(2) tc chain add dev eth0
(3) tc filter del dev eth0 chain 0 parent 1: prio 0
(4) tc filter add dev eth0 chain 0 parent 1:

Fix the issue by accounting for additional reference to chains that are
explicitly created by RTM_NEWCHAIN message as opposed to implicitly by
RTM_NEWTFILTER message.

Fixes: 726d061286 ("net: sched: prevent insertion of new classifiers during chain flush")
Reported-by: Mingshuai Ren <renmingshuai@huawei.com>
Closes: https://lore.kernel.org/lkml/87legswvi3.fsf@nvidia.com/T/
Signed-off-by: Vlad Buslov <vladbu@nvidia.com>
Link: https://lore.kernel.org/r/20230612093426.2867183-1-vladbu@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-06-21 15:59:18 +02:00
..
6lowpan
9p 9p/xen : Fix use after free bug in xen_9pfs_front_remove due to race condition 2023-04-20 12:13:53 +02:00
802 mrp: introduce active flags to prevent UAF when applicant uninit 2022-12-31 13:14:42 +01:00
8021q vlan: fix a potential uninit-value in vlan_dev_hard_start_xmit() 2023-05-24 17:36:52 +01:00
appletalk
atm atm: hide unused procfs functions 2023-06-09 10:32:26 +02:00
ax25 net: ax25: Fix deadlock caused by skb_recv_datagram in ax25_recvmsg 2022-06-22 14:22:01 +02:00
batman-adv batman-adv: Broken sync while rescheduling delayed work 2023-06-14 11:13:04 +02:00
bluetooth Bluetooth: Fix use-after-free in hci_remove_ltk/hci_remove_irk 2023-06-14 11:13:06 +02:00
bpf bpf: Move skb->len == 0 checks into __bpf_redirect 2022-12-31 13:14:11 +01:00
bpfilter
bridge bridge: always declare tunnel functions 2023-05-24 17:36:52 +01:00
caif net: caif: Fix use-after-free in cfusbl_device_notify() 2023-03-17 08:48:54 +01:00
can can: j1939: avoid possible use-after-free when j1939_can_rx_register fails 2023-06-14 11:13:06 +02:00
ceph libceph: fix potential use-after-free on linger ping and resends 2022-05-25 09:57:28 +02:00
core Remove DECnet support from kernel 2023-06-21 15:59:15 +02:00
dcb net: dcb: disable softirqs in dcbnl_flush_dev() 2022-03-08 19:12:52 +01:00
dccp dccp: Call inet6_destroy_sock() via sk->sk_destruct(). 2023-04-26 13:51:54 +02:00
dns_resolver
dsa net: dsa: tag_brcm: legacy: fix daisy-chained switches 2023-03-30 12:47:48 +02:00
ethernet
ethtool ethtool: Fix uninitialized number of lanes 2023-05-17 11:50:18 +02:00
hsr hsr: ratelimit only when errors are printed 2023-04-05 11:25:02 +02:00
ieee802154 net: ieee802154: fix error return code in dgram_bind() 2022-11-03 23:59:14 +09:00
ife
ipv4 tcp: Return user_mss for TCP_MAXSEG in CLOSE/LISTEN state if user_mss set 2023-06-09 10:32:17 +02:00
ipv6 ping6: Fix send to link-local addresses with VRF. 2023-06-21 15:59:16 +02:00
iucv net/iucv: Fix size of interrupt data 2023-03-22 13:31:28 +01:00
kcm kcm: close race conditions on sk_receive_queue 2022-11-26 09:24:50 +01:00
key af_key: Reject optional tunnel/BEET mode templates in outbound policies 2023-05-24 17:36:49 +01:00
l2tp inet6: Remove inet6_destroy_sock() in sk->sk_prot->destroy(). 2023-04-26 13:51:54 +02:00
l3mdev l3mdev: l3mdev_master_upper_ifindex_by_index_rcu should be using netdev_master_upper_dev_get_rcu 2022-04-27 14:38:53 +02:00
lapb
llc net: deal with most data-races in sk_wait_event() 2023-05-24 17:36:42 +01:00
mac80211 wifi: mac80211: simplify chanctx allocation 2023-06-09 10:32:25 +02:00
mac802154 mac802154: fix missing INIT_LIST_HEAD in ieee802154_if_add() 2022-12-14 11:37:25 +01:00
mctp net: mctp: purge receive queues on sk destruction 2023-02-06 07:59:02 +01:00
mpls net: mpls: fix stale pointer if allocation fails during device rename 2023-02-22 12:57:09 +01:00
mptcp inet6: Remove inet6_destroy_sock() in sk->sk_prot->destroy(). 2023-04-26 13:51:54 +02:00
ncsi net/ncsi: clear Tx enable mode when handling a Config required AEN 2023-05-17 11:50:16 +02:00
netfilter netfilter: nf_tables: incorrect error path handling with NFT_MSG_NEWRULE 2023-06-21 15:59:16 +02:00
netlabel netlabel: fix out-of-bounds memory accesses 2022-04-13 20:59:10 +02:00
netlink net/netlink: fix NETLINK_LIST_MEMBERSHIPS length report 2023-06-09 10:32:18 +02:00
netrom netrom: fix info-leak in nr_write_internal() 2023-06-09 10:32:16 +02:00
nfc nfc: change order inside nfc_se_io error path 2023-03-17 08:48:49 +01:00
nsh net: nsh: Use correct mac_offset to unwind gso skb in nsh_gso_segment() 2023-05-24 17:36:51 +01:00
openvswitch net: openvswitch: fix possible memory leak in ovs_meter_cmd_set() 2023-02-22 12:57:09 +01:00
packet af_packet: do not use READ_ONCE() in packet_bind() 2023-06-09 10:32:17 +02:00
phonet phonet: refcount leak in pep_sock_accep 2022-01-11 15:35:16 +01:00
psample
qrtr net: qrtr: Fix an uninit variable access bug in qrtr_tx_resume() 2023-04-20 12:13:53 +02:00
rds rds: rds_rm_zerocopy_callback() correct order for list_add_tail() 2023-03-10 09:39:16 +01:00
rfkill rfkill: make new event layout opt-in 2022-04-08 14:23:00 +02:00
rose net/rose: Fix to not accept on connected socket 2023-02-22 12:57:02 +01:00
rxrpc rxrpc: Fix hard call timeout units 2023-05-17 11:50:17 +02:00
sched net/sched: cls_api: Fix lockup on flushing explicitly created chain 2023-06-21 15:59:18 +02:00
sctp sctp: fix an error code in sctp_sf_eat_auth() 2023-06-21 15:59:17 +02:00
smc net/smc: Avoid to access invalid RMBs' MRs in SMCRv1 ADD LINK CONT 2023-06-14 11:13:01 +02:00
strparser bpf: sockmap, strparser, and tls are reusing qdisc_skb_cb and colliding 2021-11-18 19:17:11 +01:00
sunrpc SUNRPC: Fix trace_svc_register() call site 2023-05-24 17:36:51 +01:00
switchdev
tipc tipc: check the bearer min mtu properly when setting it by netlink 2023-05-24 17:36:51 +01:00
tls net: deal with most data-races in sk_wait_event() 2023-05-24 17:36:42 +01:00
unix af_unix: Fix data races around sk->sk_shutdown. 2023-05-24 17:36:42 +01:00
vmw_vsock vsock: avoid to close connected socket after the timeout 2023-05-24 17:36:49 +01:00
wireless wifi: cfg80211: fix double lock bug in reg_wdev_chan_valid() 2023-06-21 15:59:14 +02:00
x25 net/x25: Fix to not accept on connected socket 2023-02-09 11:26:40 +01:00
xdp xsk: Fix unaligned descriptor validation 2023-05-11 23:00:27 +09:00
xfrm xfrm: Check if_id in inbound policy/secpath match 2023-06-09 10:32:22 +02:00
compat.c
devres.c
Kconfig Remove DECnet support from kernel 2023-06-21 15:59:15 +02:00
Makefile Remove DECnet support from kernel 2023-06-21 15:59:15 +02:00
socket.c net: annotate sk->sk_err write from do_recvmmsg() 2023-05-24 17:36:42 +01:00
sysctl_net.c