Commit 8bbe4f44 authored by Ralf Baechle's avatar Ralf Baechle Committed by Ben Hutchings

NET: ROSE: Don't dereference NULL neighbour pointer.

commit d496f784 upstream.

A ROSE socket doesn't necessarily always have a neighbour pointer so check
if the neighbour pointer is valid before dereferencing it.
Signed-off-by: default avatarRalf Baechle <ralf@linux-mips.org>
Tested-by: default avatarBernard Pidoux <f6bvp@free.fr>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
Signed-off-by: default avatarBen Hutchings <ben@decadent.org.uk>
parent 5e436e5b
......@@ -195,7 +195,8 @@ static void rose_kill_by_device(struct net_device *dev)
if (rose->device == dev) {
rose_disconnect(s, ENETUNREACH, ROSE_OUT_OF_ORDER, 0);
rose->neighbour->use--;
if (rose->neighbour)
rose->neighbour->use--;
rose->device = NULL;
}
}
......
Markdown is supported
0%
or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment