diff options
| author | Ralf Baechle <ralf@linux-mips.org> | 2015-06-19 01:46:53 +0300 |
|---|---|---|
| committer | Zefan Li <lizefan@huawei.com> | 2015-09-18 04:20:47 +0300 |
| commit | bee5f3e274eef419680b1349540a9d8032c99289 (patch) | |
| tree | 8801d9617c76a0cc5cc24fb0e4f79e1914d917df | |
| parent | bd3fa7572a3793590ac024de5800b98cf2a1acfc (diff) | |
| download | linux-bee5f3e274eef419680b1349540a9d8032c99289.tar.xz | |
NET: ROSE: Don't dereference NULL neighbour pointer.
commit d496f7842aada20c61e6044b3395383fa972872c 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: Ralf Baechle <ralf@linux-mips.org>
Tested-by: Bernard Pidoux <f6bvp@free.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Zefan Li <lizefan@huawei.com>
| -rw-r--r-- | net/rose/af_rose.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/net/rose/af_rose.c b/net/rose/af_rose.c index bde7d69b440d..e89563655030 100644 --- a/net/rose/af_rose.c +++ b/net/rose/af_rose.c @@ -194,7 +194,8 @@ 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; } } |