diff options
author | Eric Dumazet <edumazet@google.com> | 2017-03-03 21:01:03 -0800 |
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committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-03-22 12:04:15 +0100 |
commit | ec4d8692b76e08a40221eb7c74775a390114f098 (patch) | |
tree | ff95c9eca82a41c36a032e8bc88ba246920bf386 /include/linux/dccp.h | |
parent | 9e7683301beef0cef8254eecb661e7eac3146717 (diff) |
net: fix socket refcounting in skb_complete_tx_timestamp()
[ Upstream commit 9ac25fc063751379cb77434fef9f3b088cd3e2f7 ]
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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include/linux/dccp.h')
0 files changed, 0 insertions, 0 deletions