* [PATCH net-next] vrf: fix NULL dereference in vrf_finish_output()
@ 2021-08-06 15:04 Dan Carpenter
2021-08-06 22:50 ` patchwork-bot+netdevbpf
0 siblings, 1 reply; 2+ messages in thread
From: Dan Carpenter @ 2021-08-06 15:04 UTC (permalink / raw)
To: David Ahern, Vasily Averin
Cc: David S. Miller, Jakub Kicinski, netdev, kernel-janitors
The "skb" pointer is NULL on this error path so we can't dereference it.
Use "dev" instead.
Fixes: 14ee70ca89e6 ("vrf: use skb_expand_head in vrf_finish_output")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
---
drivers/net/vrf.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/net/vrf.c b/drivers/net/vrf.c
index 726adf07ef31..662e26117353 100644
--- a/drivers/net/vrf.c
+++ b/drivers/net/vrf.c
@@ -864,7 +864,7 @@ static int vrf_finish_output(struct net *net, struct sock *sk, struct sk_buff *s
if (unlikely(skb_headroom(skb) < hh_len && dev->header_ops)) {
skb = skb_expand_head(skb, hh_len);
if (!skb) {
- skb->dev->stats.tx_errors++;
+ dev->stats.tx_errors++;
return -ENOMEM;
}
}
--
2.20.1
^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: [PATCH net-next] vrf: fix NULL dereference in vrf_finish_output()
2021-08-06 15:04 [PATCH net-next] vrf: fix NULL dereference in vrf_finish_output() Dan Carpenter
@ 2021-08-06 22:50 ` patchwork-bot+netdevbpf
0 siblings, 0 replies; 2+ messages in thread
From: patchwork-bot+netdevbpf @ 2021-08-06 22:50 UTC (permalink / raw)
To: Dan Carpenter; +Cc: dsahern, vvs, davem, kuba, netdev, kernel-janitors
Hello:
This patch was applied to netdev/net-next.git (refs/heads/master):
On Fri, 6 Aug 2021 18:04:35 +0300 you wrote:
> The "skb" pointer is NULL on this error path so we can't dereference it.
> Use "dev" instead.
>
> Fixes: 14ee70ca89e6 ("vrf: use skb_expand_head in vrf_finish_output")
> Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
> ---
> drivers/net/vrf.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
Here is the summary with links:
- [net-next] vrf: fix NULL dereference in vrf_finish_output()
https://git.kernel.org/netdev/net-next/c/06669e6880be
You are awesome, thank you!
--
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^ permalink raw reply [flat|nested] 2+ messages in thread
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2021-08-06 22:50 ` patchwork-bot+netdevbpf
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