* [PATCH] qede: fix out-of-bounds check for cqe->len_list[]
@ 2026-06-23 14:45 Matvey Kovalev
2026-06-27 2:00 ` patchwork-bot+netdevbpf
0 siblings, 1 reply; 2+ messages in thread
From: Matvey Kovalev @ 2026-06-23 14:45 UTC (permalink / raw)
To: Andrew Lunn
Cc: Matvey Kovalev, David S. Miller, Eric Dumazet, Jakub Kicinski,
Paolo Abeni, Pavel Zhigulin, netdev, linux-kernel, lvc-project
Move index check before element access.
Fixes: 896f1a2493b5 ("net: qlogic/qede: fix potential out-of-bounds read in qede_tpa_cont() and qede_tpa_end()")
Found by Linux Verification Center (linuxtesting.org) with SVACE.
Signed-off-by: Matvey Kovalev <matvey.kovalev@ispras.ru>
---
drivers/net/ethernet/qlogic/qede/qede_fp.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/net/ethernet/qlogic/qede/qede_fp.c b/drivers/net/ethernet/qlogic/qede/qede_fp.c
index e338bfc8b7b2..33e18bb69774 100644
--- a/drivers/net/ethernet/qlogic/qede/qede_fp.c
+++ b/drivers/net/ethernet/qlogic/qede/qede_fp.c
@@ -961,7 +961,7 @@ static inline void qede_tpa_cont(struct qede_dev *edev,
{
int i;
- for (i = 0; cqe->len_list[i] && i < ARRAY_SIZE(cqe->len_list); i++)
+ for (i = 0; i < ARRAY_SIZE(cqe->len_list) && cqe->len_list[i]; i++)
qede_fill_frag_skb(edev, rxq, cqe->tpa_agg_index,
le16_to_cpu(cqe->len_list[i]));
@@ -986,7 +986,7 @@ static int qede_tpa_end(struct qede_dev *edev,
dma_unmap_page(rxq->dev, tpa_info->buffer.mapping,
PAGE_SIZE, rxq->data_direction);
- for (i = 0; cqe->len_list[i] && i < ARRAY_SIZE(cqe->len_list); i++)
+ for (i = 0; i < ARRAY_SIZE(cqe->len_list) && cqe->len_list[i]; i++)
qede_fill_frag_skb(edev, rxq, cqe->tpa_agg_index,
le16_to_cpu(cqe->len_list[i]));
if (unlikely(i > 1))
--
2.54.0
^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: [PATCH] qede: fix out-of-bounds check for cqe->len_list[]
2026-06-23 14:45 [PATCH] qede: fix out-of-bounds check for cqe->len_list[] Matvey Kovalev
@ 2026-06-27 2:00 ` patchwork-bot+netdevbpf
0 siblings, 0 replies; 2+ messages in thread
From: patchwork-bot+netdevbpf @ 2026-06-27 2:00 UTC (permalink / raw)
To: Matvey Kovalev
Cc: andrew+netdev, davem, edumazet, kuba, pabeni, Pavel.Zhigulin,
netdev, linux-kernel, lvc-project
Hello:
This patch was applied to netdev/net.git (main)
by Jakub Kicinski <kuba@kernel.org>:
On Tue, 23 Jun 2026 17:45:54 +0300 you wrote:
> Move index check before element access.
>
> Fixes: 896f1a2493b5 ("net: qlogic/qede: fix potential out-of-bounds read in qede_tpa_cont() and qede_tpa_end()")
> Found by Linux Verification Center (linuxtesting.org) with SVACE.
>
> Signed-off-by: Matvey Kovalev <matvey.kovalev@ispras.ru>
>
> [...]
Here is the summary with links:
- qede: fix out-of-bounds check for cqe->len_list[]
https://git.kernel.org/netdev/net/c/f9ba47fce593
You are awesome, thank you!
--
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2026-06-23 14:45 [PATCH] qede: fix out-of-bounds check for cqe->len_list[] Matvey Kovalev
2026-06-27 2:00 ` patchwork-bot+netdevbpf
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