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| author | Eric Dumazet <edumazet@google.com> | 2017-03-25 02:36:13 (GMT) |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-05-03 15:36:34 (GMT) |
| commit | e88a8e0a23c23e09858a4f5caeb106da972e7934 (patch) | |
| tree | 482d20e74ff32abcecb793261b97593f52a04ef0 /net/ipv4/inet_hashtables.c | |
| parent | 7c80a91b8877f68a5c87f4a34df5989323f7fc2f (diff) | |
| download | linux-e88a8e0a23c23e09858a4f5caeb106da972e7934.tar.xz | |
ping: implement proper locking
commit 43a6684519ab0a6c52024b5e25322476cabad893 upstream.
We got a report of yet another bug in ping
http://www.openwall.com/lists/oss-security/2017/03/24/6
->disconnect() is not called with socket lock held.
Fix this by acquiring ping rwlock earlier.
Thanks to Daniel, Alexander and Andrey for letting us know this problem.
Fixes: c319b4d76b9e ("net: ipv4: add IPPROTO_ICMP socket kind")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: Daniel Jiang <danieljiang0415@gmail.com>
Reported-by: Solar Designer <solar@openwall.com>
Reported-by: Andrey Konovalov <andreyknvl@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Cc: Ben Hutchings <ben.hutchings@codethink.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'net/ipv4/inet_hashtables.c')
0 files changed, 0 insertions, 0 deletions