Re: [PATCH 2/3] cgroup: duplicate cgroup reference when cloning sockets
From: Vladimir Davydov <hidden>
Date: 2016-09-19 15:43:28
Also in:
linux-mm, lkml, netdev
On Wed, Sep 14, 2016 at 03:48:45PM -0400, Johannes Weiner wrote:
From: Johannes Weiner <redacted>
When a socket is cloned, the associated sock_cgroup_data is duplicated
but not its reference on the cgroup. As a result, the cgroup reference
count will underflow when both sockets are destroyed later on.
Fixes: bd1060a1d671 ("sock, cgroup: add sock->sk_cgroup")
Cc: <redacted> # 4.5+
Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>Reviewed-by: Vladimir Davydov <redacted> -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@kvack.org"> email@kvack.org </a>