Re: [PATCH net] ping: implement proper locking

From: Eric Dumazet <redacted>
Date: Fri, 24 Mar 2017 16:29:45 -0700

From: Eric Dumazet <edumazet@google.com>

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 Alexander and Andrey for letting us know of this problem.

Fixes: c319b4d76b9e ("net: ipv4: add IPPROTO_ICMP socket kind")
Reported-by: Solar Designer <redacted>
Reported-by: Andrey Konovalov <redacted>

Eric, please add a proper signoff for yourself, and also please
add the following tag:

Reported-by: Daniel Jiang <redacted>

Thank you.