From: Rameshkumar Sundaram <rameshkumar.sundaram@oss.qualcomm.com>
To: Dmitry Morgun <d.morgun@ispras.ru>, Jeff Johnson <jjohnson@kernel.org>
Cc: linux-wireless@vger.kernel.org, ath11k@lists.infradead.org,
linux-kernel@vger.kernel.org, lvc-project@linuxtesting.org,
stable@vger.kernel.org
Subject: Re: [PATCH] wifi: ath11k: fix potential buffer underflow in ath11k_hal_rx_msdu_list_get()
Date: Fri, 3 Jul 2026 16:06:17 +0530 [thread overview]
Message-ID: <20d52df0-a33c-48da-8f62-9adb7c77eea0@oss.qualcomm.com> (raw)
In-Reply-To: <20260530114252.42615-1-d.morgun@ispras.ru>
On 5/30/2026 5:12 PM, Dmitry Morgun wrote:
> When the first entry in msdu_details has a zero buffer address,
> the code accesses msdu_details[i - 1] with i == 0, causing a
> buffer underflow.
>
> Fix similarly to ath12k_wifi7_hal_rx_msdu_list_get() by adding
> a separate check for i == 0 before the main condition to prevent
> the out-of-bounds access.
>
> Found by Linux Verification Center (linuxtesting.org) with SVACE.
>
> Fixes: d5c65159f289 ("ath11k: driver for Qualcomm IEEE 802.11ax devices")
> Signed-off-by: Dmitry Morgun <d.morgun@ispras.ru>
Reviewed-by: Rameshkumar Sundaram <rameshkumar.sundaram@oss.qualcomm.com>
prev parent reply other threads:[~2026-07-03 10:36 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-05-30 11:42 [PATCH] wifi: ath11k: fix potential buffer underflow in ath11k_hal_rx_msdu_list_get() Dmitry Morgun
2026-07-03 6:45 ` Baochen Qiang
2026-07-03 10:36 ` Rameshkumar Sundaram [this message]
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