ChangeSet 1.2181.41.1, 2005/03/30 16:32:22-08:00, [EMAIL PROTECTED]
[NET]: NULL pointer bug in netpoll.c
It seems that there is a gremlin sleeping in
net/core/netpoll.c:find_skb().
Even if no more buffers are available through skbs, skb is
dereferenced anyway. The tiny patch should fix it.
Signed-off-by: Andrew Morton <[EMAIL PROTECTED]>
Signed-off-by: David S. Miller <[EMAIL PROTECTED]>
netpoll.c | 7 ++++---
1 files changed, 4 insertions(+), 3 deletions(-)
diff -Nru a/net/core/netpoll.c b/net/core/netpoll.c
--- a/net/core/netpoll.c 2005-03-30 20:06:25 -08:00
+++ b/net/core/netpoll.c 2005-03-30 20:06:25 -08:00
@@ -219,10 +219,11 @@
if (!skb) {
spin_lock_irqsave(&skb_list_lock, flags);
skb = skbs;
- if (skb)
+ if (skb) {
skbs = skb->next;
- skb->next = NULL;
- nr_skbs--;
+ skb->next = NULL;
+ nr_skbs--;
+ }
spin_unlock_irqrestore(&skb_list_lock, flags);
}
-
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