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| author | Eric Dumazet <edumazet@google.com> | 2017-03-03 21:01:03 -0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2017-03-07 14:06:15 -0800 |
| commit | 9ac25fc063751379cb77434fef9f3b088cd3e2f7 (patch) | |
| tree | 411965f359568a7dfd8c23d68fbb0d68e43c356e /net/core/sock_diag.c | |
| parent | dd4f10722aeb10f4f582948839f066bebe44e5fb (diff) | |
| download | op-kernel-dev-9ac25fc063751379cb77434fef9f3b088cd3e2f7.zip op-kernel-dev-9ac25fc063751379cb77434fef9f3b088cd3e2f7.tar.gz | |
net: fix socket refcounting in skb_complete_tx_timestamp()
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 and lead to leaks or use after free.
Fixes: 62bccb8cdb69 ("net-timestamp: Make the clone operation stand-alone from phy timestamping")
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/sock_diag.c')
0 files changed, 0 insertions, 0 deletions
