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Eric Dumazet bd43771ee9 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>
2022-02-05 12:35:37 +01:00
..
bpf_sk_storage.c
bpf: Improve bucket_log calculation logic
2020-02-14 16:34:10 -05:00
datagram.c
udp: fix skb_copy_and_csum_datagram with odd segment sizes
2021-02-17 10:35:19 +01:00
datagram.h
net/core: Allow the compiler to verify declaration and definition consistency
2019-03-27 13:49:44 -07:00
dev_addr_lists.c
net: remove unnecessary variables and callback
2019-10-24 14:53:49 -07:00
dev_ioctl.c
net: fix dev_ifsioc_locked() race condition
2021-03-07 12:20:43 +01:00
dev.c
net: annotate data-races on txq->xmit_lock_owner
2021-12-08 09:01:12 +01:00
devlink.c
devlink: Hold rtnl lock while reading netdev attributes
2020-12-08 10:40:23 +01:00
drop_monitor.c
drop_monitor: work around gcc-10 stringop-overflow warning
2020-05-20 08:20:06 +02:00
dst_cache.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
dst.c
net: print proper warning on dst underflow
2019-09-26 09:05:56 +02:00
ethtool.c
net: ethtool: clear heap allocations for ethtool function
2021-06-30 08:47:47 -04:00
failover.c
failover: allow name change on IFF_UP slave interfaces
2019-04-10 22:12:26 -07:00
fib_notifier.c
net: fib_notifier: move fib_notifier_ops from struct net into per-net struct
2019-09-07 17:28:22 +02:00
fib_rules.c
ipv6: fix memory leak in fib6_rule_suppress
2021-12-08 09:01:13 +01:00
filter.c
bpf: Do not WARN in bpf_warn_invalid_xdp_action()
2022-01-27 09:19:43 +01:00
flow_dissector.c
flow_dissector: Fix out-of-bounds warnings
2021-09-22 12:26:29 +02:00
flow_offload.c
net: core: rename indirect block ingress cb function
2019-12-18 16:08:47 +01:00
gen_estimator.c
net_sched: gen_estimator: support large ewma log
2021-02-07 15:35:47 +01:00
gen_stats.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
gro_cells.c
…
hwbm.c
net: hwbm: Make the hwbm_pool lock a mutex
2019-06-09 19:40:10 -07:00
link_watch.c
net: linkwatch: fix failure to restore device state across suspend/resume
2021-08-18 08:57:00 +02:00
lwt_bpf.c
lwt: Disable BH too in run_lwt_bpf()
2020-12-30 11:51:30 +01:00
lwtunnel.c
lwtunnel: Validate RTA_ENCAP_TYPE attribute length
2022-01-11 15:23:32 +01:00
Makefile
bpf: Introduce bpf sk local storage
2019-04-27 09:07:04 -07:00
neighbour.c
net, neigh: clear whole pneigh_entry at alloc time
2021-12-14 14:49:04 +01:00
net_namespace.c
netns: add schedule point in ops_exit_list()
2022-01-27 09:19:54 +01:00
net-procfs.c
net-procfs: show net devices bound packet types
2022-02-01 17:24:37 +01:00
net-sysfs.c
net-sysfs: update the queue counts in the unregistration path
2022-01-27 09:19:42 +01:00
net-sysfs.h
…
net-traces.c
page_pool: add tracepoints for page_pool with details need by XDP
2019-06-19 11:23:13 -04:00
netclassid_cgroup.c
cgroup, netclassid: remove double cond_resched
2020-05-10 10:31:32 +02:00
netevent.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
netpoll.c
net: Have netpoll bring-up DSA management interface
2020-11-24 13:28:57 +01:00
netprio_cgroup.c
netprio_cgroup: Fix unlimited memory leak of v2 cgroups
2020-05-20 08:20:12 +02:00
page_pool.c
mm: fix struct page layout on 32-bit systems
2021-05-19 10:08:31 +02:00
pktgen.c
pktgen: fix misuse of BUG_ON() in pktgen_thread_worker()
2021-03-07 12:20:44 +01:00
ptp_classifier.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 295
2019-06-05 17:36:38 +02:00
request_sock.c
tcp: add rcu protection around tp->fastopen_rsk
2019-10-13 10:13:08 -07:00
rtnetlink.c
rtnetlink: make sure to refresh master_dev/m_ops in __rtnl_newlink()
2022-02-05 12:35:37 +01:00
scm.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
secure_seq.c
treewide: Add SPDX license identifier for missed files
2019-05-21 10:50:45 +02:00
skbuff.c
net: Fix double 0x prefix print in SKB dump
2021-12-22 09:29:38 +01:00
skmsg.c
bpf, sockmap: Avoid returning unneeded EAGAIN when redirecting to self
2020-11-24 13:29:19 +01:00
sock_diag.c
sock: make cookie generation global instead of per netns
2019-08-09 13:14:46 -07:00
sock_map.c
bpf: Fix integer overflow in argument calculation for bpf_map_area_alloc
2021-12-17 10:12:24 +01:00
sock_reuseport.c
udp: Prevent reuseport_select_sock from reading uninitialized socks
2021-01-23 15:57:56 +01:00
sock.c
af_unix: fix races in sk_peer_pid and sk_peer_cred accesses
2021-10-06 15:42:35 +02:00
stream.c
net: stream: don't purge sk_error_queue in sk_stream_kill_queues()
2021-11-17 09:48:38 +01:00
sysctl_net_core.c
bpf: Prevent increasing bpf_jit_limit above max
2021-11-17 09:48:20 +01:00
timestamping.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 61
2019-05-24 17:36:45 +02:00
tso.c
net: Use skb accessors in network core
2019-07-22 20:47:56 -07:00
utils.c
net: Fix skb->csum update in inet_proto_csum_replace16().
2020-02-05 21:22:52 +00:00
xdp.c
xdp: obtain the mem_id mutex before trying to remove an entry.
2019-12-18 16:09:10 +01:00