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Thu, 26 Feb 2026 01:57:54 -0800 (PST) Received: from fedora ([2a04:cec0:1000:5e88:ea60:cef2:e186:48df]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-483c3b84023sm34015355e9.12.2026.02.26.01.57.51 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 26 Feb 2026 01:57:54 -0800 (PST) From: Thomas Fourier To: Cc: Thomas Fourier , stable@vger.kernel.org, Rob Clark , Sean Paul , Konrad Dybcio , Akhil P Oommen , Dmitry Baryshkov , Abhinav Kumar , Jessica Zhang , Marijn Suijten , David Airlie , Simona Vetter , Jonathan Marek , linux-arm-msm@vger.kernel.org, dri-devel@lists.freedesktop.org, freedreno@lists.freedesktop.org, linux-kernel@vger.kernel.org Subject: [PATCH v2] drm/msm: Fix dma_free_attrs() buffer size Date: Thu, 26 Feb 2026 10:57:11 +0100 Message-ID: <20260226095714.12126-2-fourier.thomas@gmail.com> X-Mailer: git-send-email 2.53.0 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" The gpummu->table buffer is alloc'd with size TABLE_SIZE + 32 in a2xx_gpummu_new() but freed with size TABLE_SIZE in a2xx_gpummu_destroy(). Change the free size to match the allocation. Fixes: c2052a4e5c99 ("drm/msm: implement a2xx mmu") Cc: Signed-off-by: Thomas Fourier Reviewed-by: Dmitry Baryshkov --- v1->v2: - Fix subject prefix drivers/gpu/drm/msm/adreno/a2xx_gpummu.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/msm/adreno/a2xx_gpummu.c b/drivers/gpu/drm/msm= /adreno/a2xx_gpummu.c index 0407c9bc8c1b..4467b04527cd 100644 --- a/drivers/gpu/drm/msm/adreno/a2xx_gpummu.c +++ b/drivers/gpu/drm/msm/adreno/a2xx_gpummu.c @@ -78,7 +78,7 @@ static void a2xx_gpummu_destroy(struct msm_mmu *mmu) { struct a2xx_gpummu *gpummu =3D to_a2xx_gpummu(mmu); =20 - dma_free_attrs(mmu->dev, TABLE_SIZE, gpummu->table, gpummu->pt_base, + dma_free_attrs(mmu->dev, TABLE_SIZE + 32, gpummu->table, gpummu->pt_base, DMA_ATTR_FORCE_CONTIGUOUS); =20 kfree(gpummu); --=20 2.52.0