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| author | Eric Dumazet <edumazet@google.com> | 2019-04-23 18:43:26 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2019-04-26 17:18:23 +0200 |
| commit | c1c477217882c610a2ba0268f5faf36c9c092528 (patch) | |
| tree | 13627eea67bb686b9ad6742fb66c1ce0615f2211 /net/l2tp/l2tp_debugfs.c | |
| parent | Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf (diff) | |
| download | linux-c1c477217882c610a2ba0268f5faf36c9c092528.tar.xz linux-c1c477217882c610a2ba0268f5faf36c9c092528.zip | |
l2tp: use rcu_dereference_sk_user_data() in l2tp_udp_encap_recv()
Canonical way to fetch sk_user_data from an encap_rcv() handler called
from UDP stack in rcu protected section is to use rcu_dereference_sk_user_data(),
otherwise compiler might read it multiple times.
Fixes: d00fa9adc528 ("il2tp: fix races with tunnel socket close")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: James Chapman <jchapman@katalix.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/l2tp/l2tp_debugfs.c')
0 files changed, 0 insertions, 0 deletions