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Eric Dumazet 2cf180360d rtnetlink: make sure to refresh master_dev/m_ops in __rtnl_newlink() 
commit c6f6f2444bdbe0079e41914a35081530d0409963 upstream.

While looking at one unrelated syzbot bug, I found the replay logic
in __rtnl_newlink() to potentially trigger use-after-free.

It is better to clear master_dev and m_ops inside the loop,
in case we have to replay it.

Fixes: ba7d49b1f0f8 ("rtnetlink: provide api for getting and setting slave info")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Jiri Pirko <jiri@nvidia.com>
Link: https://lore.kernel.org/r/20220201012106.216495-1-eric.dumazet@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-02-08 18:15:28 +01:00
..
datagram.c
net: add READ_ONCE() annotation in __skb_wait_for_more_packets()
2019-11-10 11:23:25 +01:00
dev_addr_lists.c
net: fix uninit-value in __hw_addr_add_ex()
2018-05-16 10:08:41 +02:00
dev_ioctl.c
net: Zero terminate ifr_name in dev_ifname().
2017-08-11 08:49:32 -07:00
dev.c
net: Treat __napi_schedule_irqoff() as __napi_schedule() on PREEMPT_RT
2021-07-20 16:21:06 +02:00
devlink.c
devlink: Add missing genlmsg_cancel() in devlink_nl_sb_port_pool_fill()
2020-11-24 13:02:53 +01:00
drop_monitor.c
drop_monitor: work around gcc-10 stringop-overflow warning
2020-05-20 08:15:33 +02:00
dst_cache.c
net: dst_cache_per_cpu_dst_set() can be static
2016-03-18 17:45:08 -04:00
dst.c
Fix an intermittent pr_emerg warning about lo becoming free.
2017-07-05 14:40:14 +02:00
ethtool.c
net: ethtool: Add back transceiver type
2020-01-29 10:24:36 +01:00
fib_rules.c
fib: Return the correct errno code
2021-06-30 08:49:12 -04:00
filter.c
bpf: Remove MTU check in __bpf_skb_max_len
2021-04-07 12:05:40 +02:00
flow_dissector.c
flow_dissector: Fix out-of-bounds warnings
2021-09-22 11:43:06 +02:00
flow.c
flowcache: Increase threshold for refusing new allocations
2016-11-23 06:37:09 +01:00
gen_estimator.c
net: sched: do not acquire qdisc spinlock in qdisc/class stats dump
2016-06-07 16:37:14 -07:00
gen_stats.c
gen_stats: Fix netlink stats dumping in the presence of padding
2018-07-25 11:24:00 +02:00
hwbm.c
net: hwbm: Fix unbalanced spinlock in error case
2016-05-25 12:35:09 -07:00
link_watch.c
…
lwtunnel.c
lwtunnel: Fix oops on state free after encap module unload
2017-02-04 09:47:11 +01:00
Makefile
net: add a hardware buffer management helper API
2016-03-14 12:19:46 -04:00
neighbour.c
net, neigh: clear whole pneigh_entry at alloc time
2021-12-14 10:04:49 +01:00
net_namespace.c
netns: add schedule point in ops_exit_list()
2022-01-27 08:47:41 +01:00
net-procfs.c
net-procfs: show net devices bound packet types
2022-02-08 18:15:27 +01:00
net-sysfs.c
net-sysfs: add a newline when printing 'tx_timeout' by sysfs
2020-07-31 16:44:06 +02:00
net-sysfs.h
…
net-traces.c
net: IPv6 fib lookup tracepoint
2015-11-22 11:54:10 -05:00
netclassid_cgroup.c
cgroup, netclassid: periodically release file_lock on classid updating
2020-03-20 09:07:37 +01:00
netevent.c
…
netpoll.c
net: Have netpoll bring-up DSA management interface
2020-11-24 13:02:55 +01:00
netprio_cgroup.c
netprio_cgroup: Fix unlimited memory leak of v2 cgroups
2020-05-20 08:15:39 +02:00
pktgen.c
pktgen: fix misuse of BUG_ON() in pktgen_thread_worker()
2021-03-07 11:25:57 +01:00
ptp_classifier.c
ptp: Change ptp_class to a proper bitmask
2015-11-03 11:08:22 -05:00
request_sock.c
…
rtnetlink.c
rtnetlink: make sure to refresh master_dev/m_ops in __rtnl_newlink()
2022-02-08 18:15:28 +01:00
scm.c
unix: correctly track in-flight fds in sending process user_struct
2016-02-08 10:30:42 -05:00
secure_seq.c
…
skbuff.c
net: Fix zero-copy head len calculation.
2021-08-08 08:38:53 +02:00
sock_diag.c
net: core: fix module type in sock_diag_bind
2018-01-17 09:38:53 +01:00
sock_reuseport.c
soreuseport: fix mem leak in reuseport_add_sock()
2018-02-13 12:35:57 +01:00
sock.c
af_unix: fix races in sk_peer_pid and sk_peer_cred accesses
2021-10-09 13:25:58 +02:00
stream.c
net: stream: don't purge sk_error_queue in sk_stream_kill_queues()
2021-11-26 11:48:34 +01:00
sysctl_net_core.c
bpf: Prevent increasing bpf_jit_limit above max
2021-11-26 11:48:20 +01:00
timestamping.c
…
tso.c
net: tso: add support for IPv6
2015-10-26 22:24:22 -07:00
utils.c
net: Fix skb->csum update in inet_proto_csum_replace16().
2020-02-05 13:05:56 +00:00