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authorEric Dumazet <edumazet@google.com>2017-03-03 21:01:03 -0800
committerDavid S. Miller <davem@davemloft.net>2017-03-07 14:06:15 -0800
commit9ac25fc063751379cb77434fef9f3b088cd3e2f7 (patch)
tree411965f359568a7dfd8c23d68fbb0d68e43c356e /net/sunrpc
parentdd4f10722aeb10f4f582948839f066bebe44e5fb (diff)
downloadlinux-9ac25fc063751379cb77434fef9f3b088cd3e2f7.tar.bz2
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/sunrpc')
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