linux-kernel - Re: [PATCH 1/2][next][V2] Fix dereference of pointer minor before null check

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Message-ID: <304124f3-3686-4a04-808c-7ee84356966e@oss.qualcomm.com>
Date: Thu, 31 Jul 2025 11:21:12 +0200
From: Konrad Dybcio <konrad.dybcio@....qualcomm.com>
To: Colin Ian King <colin.i.king@...il.com>,
        Rob Clark <robin.clark@....qualcomm.com>,
        Abhinav Kumar <abhinav.kumar@...ux.dev>,
        Jessica Zhang <jessica.zhang@....qualcomm.com>,
        Sean Paul <sean@...rly.run>,
        Marijn Suijten <marijn.suijten@...ainline.org>,
        David Airlie <airlied@...il.com>, Simona Vetter <simona@...ll.ch>,
        linux-arm-msm@...r.kernel.org, dri-devel@...ts.freedesktop.org,
        freedreno@...ts.freedesktop.org
Cc: kernel-janitors@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/2][next][V2] Fix dereference of pointer minor before
 null check

On 7/31/25 10:18 AM, Colin Ian King wrote:
> Currently the pointer minor is being dereferenced before it is null
> checked, leading to a potential null pointer dereference issue. Fix this
> by dereferencing the pointer only after it has been null checked.
> 
> Fixes: 4f89cf40d01e ("drm/msm: bail out late_init_minor() if it is not a GPU device")
> Signed-off-by: Colin Ian King <colin.i.king@...il.com>
> ---

Reviewed-by: Konrad Dybcio <konrad.dybcio@....qualcomm.com>

Konrad