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| author | Eric Dumazet <edumazet@google.com> | 2016-01-12 08:58:00 -0800 |
|---|---|---|
| committer | Sasha Levin <sasha.levin@oracle.com> | 2016-02-15 15:42:44 -0500 |
| commit | 523faf4a2107597307c7861e84201b52a7efbf8b (patch) | |
| tree | 7319c74cd9c75ed0d4f5fcb75c849abb984841cd /kernel | |
| parent | 3d2f497e4d8e1b7a49a9c4aa2fe615f7210dac70 (diff) | |
| download | linux-stable-523faf4a2107597307c7861e84201b52a7efbf8b.tar.gz | |
phonet: properly unshare skbs in phonet_rcv()
[ Upstream commit 7aaed57c5c2890634cfadf725173c7c68ea4cb4f ]
Ivaylo Dimitrov reported a regression caused by commit 7866a621043f
("dev: add per net_device packet type chains").
skb->dev becomes NULL and we crash in __netif_receive_skb_core().
Before above commit, different kind of bugs or corruptions could happen
without major crash.
But the root cause is that phonet_rcv() can queue skb without checking
if skb is shared or not.
Many thanks to Ivaylo Dimitrov for his help, diagnosis and tests.
Reported-by: Ivaylo Dimitrov <ivo.g.dimitrov.75@gmail.com>
Tested-by: Ivaylo Dimitrov <ivo.g.dimitrov.75@gmail.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Remi Denis-Courmont <courmisch@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sasha.levin@oracle.com>
Diffstat (limited to 'kernel')
0 files changed, 0 insertions, 0 deletions