tree 42c7c3b152d02345d41f9253bebb0dd12c23e4ce
parent 537d59af73d894750cff14f90fe2b6d77fbab15b
author Jarek Poplawski <jarkao2@gmail.com> 1212530026 -0700
committer David S. Miller <davem@davemloft.net> 1212530026 -0700

ax25: Fix NULL pointer dereference and lockup.

From: Jarek Poplawski <jarkao2@gmail.com>

There is only one function in AX25 calling skb_append(), and it really
looks suspicious: appends skb after previously enqueued one, but in
the meantime this previous skb could be removed from the queue.

This patch Fixes it the simple way, so this is not fully compatible with
the current method, but testing hasn't shown any problems.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: David S. Miller <davem@davemloft.net>