* [PATCH] ibmvnic: fix: NULL pointer dereference.
@ 2020-12-30 7:23 YANG LI
2020-12-30 13:48 ` Michal Suchánek
` (2 more replies)
0 siblings, 3 replies; 4+ messages in thread
From: YANG LI @ 2020-12-30 7:23 UTC (permalink / raw)
To: davem
Cc: kuba, drt, ljp, sukadev, mpe, benh, paulus, netdev, linuxppc-dev,
linux-kernel, YANG LI
The error is due to dereference a null pointer in function
reset_one_sub_crq_queue():
if (!scrq) {
netdev_dbg(adapter->netdev,
"Invalid scrq reset. irq (%d) or msgs(%p).\n",
scrq->irq, scrq->msgs);
return -EINVAL;
}
If the expression is true, scrq must be a null pointer and cannot
dereference.
Signed-off-by: YANG LI <abaci-bugfix@linux.alibaba.com>
Reported-by: Abaci <abaci@linux.alibaba.com>
---
drivers/net/ethernet/ibm/ibmvnic.c | 4 +---
1 file changed, 1 insertion(+), 3 deletions(-)
diff --git a/drivers/net/ethernet/ibm/ibmvnic.c b/drivers/net/ethernet/ibm/ibmvnic.c
index f302504..d7472be 100644
--- a/drivers/net/ethernet/ibm/ibmvnic.c
+++ b/drivers/net/ethernet/ibm/ibmvnic.c
@@ -2981,9 +2981,7 @@ static int reset_one_sub_crq_queue(struct ibmvnic_adapter *adapter,
int rc;
if (!scrq) {
- netdev_dbg(adapter->netdev,
- "Invalid scrq reset. irq (%d) or msgs (%p).\n",
- scrq->irq, scrq->msgs);
+ netdev_dbg(adapter->netdev, "Invalid scrq reset.\n");
return -EINVAL;
}
--
1.8.3.1
^ permalink raw reply related [flat|nested] 4+ messages in thread* Re: [PATCH] ibmvnic: fix: NULL pointer dereference.
2020-12-30 7:23 [PATCH] ibmvnic: fix: NULL pointer dereference YANG LI
@ 2020-12-30 13:48 ` Michal Suchánek
2020-12-30 22:00 ` Lijun Pan
2021-01-04 21:30 ` patchwork-bot+netdevbpf
2 siblings, 0 replies; 4+ messages in thread
From: Michal Suchánek @ 2020-12-30 13:48 UTC (permalink / raw)
To: YANG LI
Cc: davem, linux-kernel, netdev, ljp, drt, kuba, sukadev,
linuxppc-dev, paulus
On Wed, Dec 30, 2020 at 03:23:14PM +0800, YANG LI wrote:
> The error is due to dereference a null pointer in function
> reset_one_sub_crq_queue():
>
> if (!scrq) {
> netdev_dbg(adapter->netdev,
> "Invalid scrq reset. irq (%d) or msgs(%p).\n",
> scrq->irq, scrq->msgs);
> return -EINVAL;
> }
>
> If the expression is true, scrq must be a null pointer and cannot
> dereference.
>
> Signed-off-by: YANG LI <abaci-bugfix@linux.alibaba.com>
> Reported-by: Abaci <abaci@linux.alibaba.com>
Fixes: 9281cf2d5840 ("ibmvnic: avoid memset null scrq msgs")
> ---
> drivers/net/ethernet/ibm/ibmvnic.c | 4 +---
> 1 file changed, 1 insertion(+), 3 deletions(-)
>
> diff --git a/drivers/net/ethernet/ibm/ibmvnic.c b/drivers/net/ethernet/ibm/ibmvnic.c
> index f302504..d7472be 100644
> --- a/drivers/net/ethernet/ibm/ibmvnic.c
> +++ b/drivers/net/ethernet/ibm/ibmvnic.c
> @@ -2981,9 +2981,7 @@ static int reset_one_sub_crq_queue(struct ibmvnic_adapter *adapter,
> int rc;
>
> if (!scrq) {
> - netdev_dbg(adapter->netdev,
> - "Invalid scrq reset. irq (%d) or msgs (%p).\n",
> - scrq->irq, scrq->msgs);
> + netdev_dbg(adapter->netdev, "Invalid scrq reset.\n");
> return -EINVAL;
> }
>
> --
> 1.8.3.1
>
^ permalink raw reply [flat|nested] 4+ messages in thread* Re: [PATCH] ibmvnic: fix: NULL pointer dereference.
2020-12-30 7:23 [PATCH] ibmvnic: fix: NULL pointer dereference YANG LI
2020-12-30 13:48 ` Michal Suchánek
@ 2020-12-30 22:00 ` Lijun Pan
2021-01-04 21:30 ` patchwork-bot+netdevbpf
2 siblings, 0 replies; 4+ messages in thread
From: Lijun Pan @ 2020-12-30 22:00 UTC (permalink / raw)
To: YANG LI
Cc: davem, Jakub Kicinski, drt, Lijun Pan, sukadev, mpe, benh,
paulus, netdev, linuxppc-dev, linux-kernel
On Wed, Dec 30, 2020 at 1:25 AM YANG LI <abaci-bugfix@linux.alibaba.com> wrote:
>
> The error is due to dereference a null pointer in function
> reset_one_sub_crq_queue():
>
> if (!scrq) {
> netdev_dbg(adapter->netdev,
> "Invalid scrq reset. irq (%d) or msgs(%p).\n",
> scrq->irq, scrq->msgs);
> return -EINVAL;
> }
>
> If the expression is true, scrq must be a null pointer and cannot
> dereference.
>
> Signed-off-by: YANG LI <abaci-bugfix@linux.alibaba.com>
> Reported-by: Abaci <abaci@linux.alibaba.com>
> ---
Acked-by: Lijun Pan <ljp@linux.ibm.com>
^ permalink raw reply [flat|nested] 4+ messages in thread* Re: [PATCH] ibmvnic: fix: NULL pointer dereference.
2020-12-30 7:23 [PATCH] ibmvnic: fix: NULL pointer dereference YANG LI
2020-12-30 13:48 ` Michal Suchánek
2020-12-30 22:00 ` Lijun Pan
@ 2021-01-04 21:30 ` patchwork-bot+netdevbpf
2 siblings, 0 replies; 4+ messages in thread
From: patchwork-bot+netdevbpf @ 2021-01-04 21:30 UTC (permalink / raw)
To: YANG LI
Cc: davem, kuba, drt, ljp, sukadev, mpe, benh, paulus, netdev,
linuxppc-dev, linux-kernel
Hello:
This patch was applied to netdev/net.git (refs/heads/master):
On Wed, 30 Dec 2020 15:23:14 +0800 you wrote:
> The error is due to dereference a null pointer in function
> reset_one_sub_crq_queue():
>
> if (!scrq) {
> netdev_dbg(adapter->netdev,
> "Invalid scrq reset. irq (%d) or msgs(%p).\n",
> scrq->irq, scrq->msgs);
> return -EINVAL;
> }
>
> [...]
Here is the summary with links:
- ibmvnic: fix: NULL pointer dereference.
https://git.kernel.org/netdev/net/c/862aecbd9569
You are awesome, thank you!
--
Deet-doot-dot, I am a bot.
https://korg.docs.kernel.org/patchwork/pwbot.html
^ permalink raw reply [flat|nested] 4+ messages in thread
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2020-12-30 7:23 [PATCH] ibmvnic: fix: NULL pointer dereference YANG LI
2020-12-30 13:48 ` Michal Suchánek
2020-12-30 22:00 ` Lijun Pan
2021-01-04 21:30 ` patchwork-bot+netdevbpf
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