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NET: ROSE: Don't dereference NULL neighbour pointer.
[firefly-linux-kernel-4.4.55.git]
/
net
/
rose
/
af_rose.c
diff --git
a/net/rose/af_rose.c
b/net/rose/af_rose.c
index 8ae603069a1a1706982dc0b7affd5443cb912308..dd304bc40788d5001820530842db936201965fb6 100644
(file)
--- a/
net/rose/af_rose.c
+++ b/
net/rose/af_rose.c
@@
-192,7
+192,8
@@
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;
}
}