diff options
| author | Eric Dumazet <edumazet@google.com> | 2017-03-24 19:36:13 -0700 |
|---|---|---|
| committer | Moyster <oysterized@gmail.com> | 2017-06-17 16:06:04 +0200 |
| commit | 4eeb4909d28214a263ddbe532a2e26c23af66a07 (patch) | |
| tree | 92d7262898b06d62373ae8f9fd92d8f24c1b2e41 /include/linux/can | |
| parent | 069ffd0fa2e7dc173f3d3a9b48f24c28275c328b (diff) | |
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>
[wt: the function is ping_v4_unhash() in 3.10]
Signed-off-by: Willy Tarreau <w@1wt.eu>
Conflicts:
net/ipv4/ping.c
Diffstat (limited to 'include/linux/can')
0 files changed, 0 insertions, 0 deletions