From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id A33B52FD699; Fri, 9 Jan 2026 12:17:30 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1767961050; cv=none; b=TPDQ/iQmOQFb94e1cdRf1lj5B4L6i/c/3rjTvTJo/wDjizfHIaHZhvmp71KboLzKul5OOh7vDukSaloWJvZkHwxsrQxtNfYX1ik99hNj8RLTXl8CF2mnQ6Ka0iwXh5fI/gp77Ef2iIshEMCWrmsmWosulXpfb6iah87xL7SS+eY= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1767961050; c=relaxed/simple; bh=4oEAy41KD23830qeiI23R/B7JI8etF85ru0y58teaKw=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=rr8ERw92ix6/eFLoOz7+c9vBabk47zKtV9stb6+N617TD/wqSsCSriwXToRplIz3/e6pWxcgynb+BspTz9b6Fmi2C8KGJdNsseDm5dd+Jh5y+cfUUy/Gf1crF/XW0CmHaKiF4ICPAAxSVOosW8iMYcyLPeC4/atUlazcO7RRazo= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=Gn8EKkk5; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="Gn8EKkk5" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 31CA6C4CEF1; Fri, 9 Jan 2026 12:17:30 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1767961050; bh=4oEAy41KD23830qeiI23R/B7JI8etF85ru0y58teaKw=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Gn8EKkk5i8jAc0i2noVO7WyPU32gJSM2a3vvCqm7G2kQlGcb18OXRc1VFbLrgd2Br RtA9mJKlmRa6i5zE1u6Ep1pR2qnRffZOLpoU21BATbpQiEZQ9KFbk3jOlrVUV9R6j1 AlA1vQAQLeHYKA1i8NfXGkxf3qyjBCbcsbhqeN9k= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Akhil P Oommen , Konrad Dybcio , Rob Clark Subject: [PATCH 6.6 618/737] drm/msm/a6xx: Fix out of bound IO access in a6xx_get_gmu_registers Date: Fri, 9 Jan 2026 12:42:37 +0100 Message-ID: <20260109112157.250899735@linuxfoundation.org> X-Mailer: git-send-email 2.52.0 In-Reply-To: <20260109112133.973195406@linuxfoundation.org> References: <20260109112133.973195406@linuxfoundation.org> User-Agent: quilt/0.69 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 6.6-stable review patch. If anyone has any objections, please let me know. ------------------ From: Akhil P Oommen commit 779b68a5bf2764c8ed3aa800e41ba0d5d007e1e7 upstream. REG_A6XX_GMU_AO_AHB_FENCE_CTRL register falls under GMU's register range. So, use gmu_write() routines to write to this register. Fixes: 1707add81551 ("drm/msm/a6xx: Add a6xx gpu state") Cc: stable@vger.kernel.org Signed-off-by: Akhil P Oommen Reviewed-by: Konrad Dybcio Patchwork: https://patchwork.freedesktop.org/patch/688993/ Message-ID: <20251118-kaana-gpu-support-v4-1-86eeb8e93fb6@oss.qualcomm.com> Signed-off-by: Rob Clark Signed-off-by: Greg Kroah-Hartman --- drivers/gpu/drm/msm/adreno/a6xx_gpu_state.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/drivers/gpu/drm/msm/adreno/a6xx_gpu_state.c +++ b/drivers/gpu/drm/msm/adreno/a6xx_gpu_state.c @@ -834,7 +834,7 @@ static void a6xx_get_gmu_registers(struc return; /* Set the fence to ALLOW mode so we can access the registers */ - gpu_write(gpu, REG_A6XX_GMU_AO_AHB_FENCE_CTRL, 0); + gmu_write(&a6xx_gpu->gmu, REG_A6XX_GMU_AO_AHB_FENCE_CTRL, 0); _a6xx_get_gmu_registers(gpu, a6xx_state, &a6xx_gmu_reglist[2], &a6xx_state->gmu_registers[2], false);