linux-kernel - Re: [PATCH] wifi: ath11k: fix NULL derefence in ath11k_qmi_m3

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Message-ID: <36e9b150-fcf4-db45-54d8-a157201e516a@oss.qualcomm.com>
Date: Thu, 18 Sep 2025 10:55:58 +0530
From: Vasanthakumar Thiagarajan <vasanthakumar.thiagarajan@....qualcomm.com>
To: Matvey Kovalev <matvey.kovalev@...ras.ru>,
        Jeff Johnson <jjohnson@...nel.org>
Cc: linux-wireless@...r.kernel.org, ath11k@...ts.infradead.org,
        linux-kernel@...r.kernel.org, lvc-project@...uxtesting.org,
        stable@...r.kernel.org
Subject: Re: [PATCH] wifi: ath11k: fix NULL derefence in ath11k_qmi_m3_load()



On 9/18/2025 12:50 AM, Matvey Kovalev wrote:
> If ab->fw.m3_data points to data, then fw pointer remains null.
> Further, if m3_mem is not allocated, then fw is dereferenced to be
> passed to ath11k_err function.
> 
> Replace fw->size by m3_len.
> 
> Found by Linux Verification Center (linuxtesting.org) with SVACE.
> 
> Fixes: 7db88b962f06 ("wifi: ath11k: add firmware-2.bin support")
> Cc: stable@...r.kernel.org
> Signed-off-by: Matvey Kovalev <matvey.kovalev@...ras.ru>

Reviewed-by: Vasanthakumar Thiagarajan <vasanthakumar.thiagarajan@....qualcomm.com>