linux-kernel - Re: [PATCH] drm/msm/gpu: Fix null-pointer dereference in zap_shader_load

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Message-ID: <70836806-5228-4b32-be97-f00a476bbe47@linaro.org>
Date:   Thu, 23 Nov 2023 12:37:33 +0100
From:   Konrad Dybcio <konrad.dybcio@...aro.org>
To:     Kunwu Chan <chentao@...inos.cn>, robdclark@...il.com,
        quic_abhinavk@...cinc.com, dmitry.baryshkov@...aro.org,
        sean@...rly.run, marijn.suijten@...ainline.org, airlied@...il.com,
        daniel@...ll.ch, jordan@...micpenguin.net
Cc:     kunwu.chan@...mail.com, linux-arm-msm@...r.kernel.org,
        dri-devel@...ts.freedesktop.org, freedreno@...ts.freedesktop.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] drm/msm/gpu: Fix null-pointer dereference in
 zap_shader_load_mdt



On 11/23/23 04:33, Kunwu Chan wrote:
> kasprintf() returns a pointer to dynamically allocated memory
> which can be NULL upon failure. Ensure the allocation was successful
> by checking the pointer validity.
> 
> Fixes: a9e2559c931d ("drm/msm/gpu: Move zap shader loading to adreno")
> Signed-off-by: Kunwu Chan <chentao@...inos.cn>
> ---
Reviewed-by: Konrad Dybcio <konrad.dybcio@...aro.org>

Konrad