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| author | David S. Miller <[email protected]> | 2011-01-05 23:38:53 +0000 |
|---|---|---|
| committer | David S. Miller <[email protected]> | 2011-01-05 23:38:53 +0000 |
| commit | 3610cda53f247e176bcbb7a7cca64bc53b12acdb (patch) | |
| tree | d780bc1e405116e75a194b2f4693a6f9bbe9f58f /net/unix/sysctl_net_unix.c | |
| parent | net_sched: pfifo_head_drop problem (diff) | |
| download | kernel-3610cda53f247e176bcbb7a7cca64bc53b12acdb.tar.gz kernel-3610cda53f247e176bcbb7a7cca64bc53b12acdb.zip | |
af_unix: Avoid socket->sk NULL OOPS in stream connect security hooks.
unix_release() can asynchornously set socket->sk to NULL, and
it does so without holding the unix_state_lock() on "other"
during stream connects.
However, the reverse mapping, sk->sk_socket, is only transitioned
to NULL under the unix_state_lock().
Therefore make the security hooks follow the reverse mapping instead
of the forward mapping.
Reported-by: Jeremy Fitzhardinge <[email protected]>
Reported-by: Linus Torvalds <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
Diffstat (limited to 'net/unix/sysctl_net_unix.c')
0 files changed, 0 insertions, 0 deletions