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| author | Eric Dumazet <edumazet@google.com> | 2014-12-09 09:56:08 -0800 |
|---|---|---|
| committer | Mister Oyster <oysterized@gmail.com> | 2017-04-13 12:32:04 +0200 |
| commit | 9d8facefaa51c4a2f43959d578e32bc72b4fdfd9 (patch) | |
| tree | 925307193e911f90aeff23b33986a04d7cf67b6c /arch | |
| parent | a1d299cdf484c409d17b58f827603421d49cdd99 (diff) | |
tcp: fix more NULL deref after prequeue changes
When I cooked commit c3658e8d0f1 ("tcp: fix possible NULL dereference in
tcp_vX_send_reset()") I missed other spots we could deref a NULL
skb_dst(skb)
Again, if a socket is provided, we do not need skb_dst() to get a
pointer to network namespace : sock_net(sk) is good enough.
[Backport of net-next 0f85feae6b710ced3abad5b2b47d31dfcb956b62]
Bug: 16355602
Change-Id: Ibe1def7979625ee7902bff2f33ec8945b9945948
Reported-by: Dann Frazier <dann.frazier@canonical.com>
Bisected-by: Dann Frazier <dann.frazier@canonical.com>
Tested-by: Dann Frazier <dann.frazier@canonical.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Fixes: ca777eff51f7 ("tcp: remove dst refcount false sharing for prequeue mode")
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Francisco Franco <franciscofranco.1990@gmail.com>
Diffstat (limited to 'arch')
0 files changed, 0 insertions, 0 deletions