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| author | Eric Dumazet | 2017-08-30 18:29:31 +0200 |
|---|---|---|
| committer | David S. Miller | 2017-08-31 00:55:10 +0200 |
| commit | 351050ecd6523374b370341cc29fe61e2201556b (patch) | |
| tree | 5b6c0a72dcf7b3d172c2be867e5bf2fd10030099 /drivers/net/dsa/bcm_sf2.h | |
| parent | Merge branch 'net-sched-init-failure-fixes' (diff) | |
| download | kernel-qcow2-linux-351050ecd6523374b370341cc29fe61e2201556b.tar.gz kernel-qcow2-linux-351050ecd6523374b370341cc29fe61e2201556b.tar.xz kernel-qcow2-linux-351050ecd6523374b370341cc29fe61e2201556b.zip | |
kcm: do not attach PF_KCM sockets to avoid deadlock
syzkaller had no problem to trigger a deadlock, attaching a KCM socket
to another one (or itself). (original syzkaller report was a very
confusing lockdep splat during a sendmsg())
It seems KCM claims to only support TCP, but no enforcement is done,
so we might need to add additional checks.
Fixes: ab7ac4eb9832 ("kcm: Kernel Connection Multiplexor module")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: Dmitry Vyukov <dvyukov@google.com>
Acked-by: Tom Herbert <tom@quantonium.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/dsa/bcm_sf2.h')
0 files changed, 0 insertions, 0 deletions