| commit | 22cfb0bf6721bb1f865f67bc21e3c36c272faf36 | |
| author | Bernd Schubert <bernd.schubert@itwm.fraunhofer.de> | |
| Tue, 16 Aug 2011 10:56:54 +0000 (16 10:56 +0000) | ||
| committer | Roland Dreier <roland@purestorage.com> | |
| Tue, 16 Aug 2011 17:19:20 +0000 (16 10:19 -0700) | ||
| tree | d70baecd0e7aa0e63cafa82178a16a39587df7cb | treesnapshot (tar.gz zip) |
| parent | 322a8b034003c0d46d39af85bf24fee27b902f48 | commitdiff |
IPoIB: Fix possible NULL dereference in ipoib_start_xmit()
Fix a bug introduced in 69cce1d14049 ("net: Abstract dst->neighbour
accesses behind helpers.") where we might dereference skb_dst(skb)
even if it is NULL, which causes:
[ 240.944030] BUG: unable to handle kernel NULL pointer dereference at 0000000000000040
[ 240.948007] IP: [<ffffffffa0366ce9>] ipoib_start_xmit+0x39/0x280 [ib_ipoib]
[...]
[ 240.948007] Call Trace:
[ 240.948007] <IRQ>
[ 240.948007] [<ffffffff812cd5e0>] dev_hard_start_xmit+0x2a0/0x590
[ 240.948007] [<ffffffff8131f680>] ? arp_create+0x70/0x200
[ 240.948007] [<ffffffff812e8e1f>] sch_direct_xmit+0xef/0x1c0
Addresses: https://bugzilla.kernel.org/show_bug.cgi?id=41212
Signed-off-by: Bernd Schubert <bernd.schubert@itwm.fraunhofer.de>
Signed-off-by: Roland Dreier <roland@purestorage.com>
Fix a bug introduced in 69cce1d14049 ("net: Abstract dst->neighbour
accesses behind helpers.") where we might dereference skb_dst(skb)
even if it is NULL, which causes:
[ 240.944030] BUG: unable to handle kernel NULL pointer dereference at 0000000000000040
[ 240.948007] IP: [<ffffffffa0366ce9>] ipoib_start_xmit+0x39/0x280 [ib_ipoib]
[...]
[ 240.948007] Call Trace:
[ 240.948007] <IRQ>
[ 240.948007] [<ffffffff812cd5e0>] dev_hard_start_xmit+0x2a0/0x590
[ 240.948007] [<ffffffff8131f680>] ? arp_create+0x70/0x200
[ 240.948007] [<ffffffff812e8e1f>] sch_direct_xmit+0xef/0x1c0
Addresses: https://bugzilla.kernel.org/show_bug.cgi?id=41212
Signed-off-by: Bernd Schubert <bernd.schubert@itwm.fraunhofer.de>
Signed-off-by: Roland Dreier <roland@purestorage.com>
| drivers/infiniband/ulp/ipoib/ipoib_main.c | diffblobblamehistory |