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| author | Eric Dumazet <edumazet@google.com> | 2017-03-03 21:01:02 -0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2017-03-07 14:06:14 -0800 |
| commit | dd4f10722aeb10f4f582948839f066bebe44e5fb (patch) | |
| tree | 208405a490829ceb4a413eb4f388a7185f675e35 /net/core/flow.c | |
| parent | 146d8fef9da1ba854de7fa28b9cb9eb147535f88 (diff) | |
| download | op-kernel-dev-dd4f10722aeb10f4f582948839f066bebe44e5fb.zip op-kernel-dev-dd4f10722aeb10f4f582948839f066bebe44e5fb.tar.gz | |
net: fix socket refcounting in skb_complete_wifi_ack()
TX skbs do not necessarily hold a reference on skb->sk->sk_refcnt
By the time TX completion happens, sk_refcnt might be already 0.
sock_hold()/sock_put() would then corrupt critical state, like
sk_wmem_alloc.
Fixes: bf7fa551e0ce ("mac80211: Resolve sk_refcnt/sk_wmem_alloc issue in wifi ack path")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Alexander Duyck <alexander.h.duyck@intel.com>
Cc: Johannes Berg <johannes@sipsolutions.net>
Cc: Soheil Hassas Yeganeh <soheil@google.com>
Cc: Willem de Bruijn <willemb@google.com>
Acked-by: Soheil Hassas Yeganeh <soheil@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/core/flow.c')
0 files changed, 0 insertions, 0 deletions
