]> git.proxmox.com Git - mirror_ubuntu-eoan-kernel.git/commit
net: call cgroup_sk_alloc() earlier in sk_clone_lock()
authorEric Dumazet <edumazet@google.com>
Wed, 11 Oct 2017 02:12:33 +0000 (19:12 -0700)
committerDavid S. Miller <davem@davemloft.net>
Wed, 11 Oct 2017 03:24:29 +0000 (20:24 -0700)
commitc0576e3975084d4699b7bfef578613fb8e1144f6
tree3c077a45caeb9a84a3c552bd623034f6b788f7da
parent75cb070960ade40fba5de32138390f3c85c90941
net: call cgroup_sk_alloc() earlier in sk_clone_lock()

If for some reason, the newly allocated child need to be freed,
we will call cgroup_put() (via sk_free_unlock_clone()) while the
corresponding cgroup_get() was not yet done, and we will free memory
too soon.

Fixes: d979a39d7242 ("cgroup: duplicate cgroup reference when cloning sockets")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Tejun Heo <tj@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
net/core/sock.c