Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (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 E8B4D3815E3; Thu, 20 Aug 2026 17:37:51 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1787247473; cv=none; b=T3LsxE+MT6TrQkjLDnYtdS27cKuZg++6b+LF1M6/JcNdEodYV/0OgWcgYr/xXyJFqQraDw7Z/1g76AaeGUQJBmB7Cpsq7hYcHGGOfJP4lGAEH4WY/Y/rsXjX/lLWRNyKpSp6bDqMrxfk64zMNtqhefWCZbTKySyzKGewcTStii4= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1787247473; c=relaxed/simple; bh=HNKGPMVAKF07NuzIf+6bvc1EHQd6z/bcliPShfdit6E=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=PzfA2VJ1/RoMJhEaWOH9OBaNaPFO3TKlxLsgXFAOa6hnnZq6QgXvjjNfYtY1QbgMoZgi1hHWeng2CxKQuAxxYnq7COsvvJ/a87CCHHymWMF8Ts3Kc8OA8zO0dgpl+v0LvHtGHL8PUNYSvgQD3kG1uIiRWjgltc5mxCgeem4PwM4= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=S0vfX7v0; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="S0vfX7v0" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 51E0C1F00A3A; Thu, 20 Aug 2026 17:37:51 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1787247471; bh=Kwrn2qTruVTEfgO3tDt2u+Alrx4HT0bbPFgFL2FpVsY=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=S0vfX7v02qk5u23fFcfILgqr65dAzlTM9J4TLOUAb218wNVNmEgCaad/QKvTwawwY F4l1aPoTdZB06JpfUNVxoyH8IWei0No15TG4oM0KmLxdsDsvR4cPcD42P8CksN/csn LkF8T7BTAKnbQJ6yyc64T/wFHHDT3o2NgRXzYY2k= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, David Rosca , Leo Liu , Ruijing Dong , Alex Deucher Subject: [PATCH 6.6 058/166] drm/amdgpu: Reject UVD message with dimensions above 4096 Date: Thu, 20 Aug 2026 16:55:17 +0200 Message-ID: <20260820145212.898344029@linuxfoundation.org> X-Mailer: git-send-email 2.55.0 In-Reply-To: <20260820145211.194104353@linuxfoundation.org> References: <20260820145211.194104353@linuxfoundation.org> User-Agent: quilt/0.69 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: patches@lists.linux.dev 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: David Rosca commit 8c9aebcdd9f46f7a14b98d6ab18574b7a48fbb08 upstream. Fixes potential overflow in DPB size calculations. Signed-off-by: David Rosca Acked-by: Leo Liu Reviewed-by: Ruijing Dong Signed-off-by: Alex Deucher (cherry picked from commit 05e1387d151f71569fbe122d2c89f9db0c21dc10) Cc: stable@vger.kernel.org Signed-off-by: Greg Kroah-Hartman --- drivers/gpu/drm/amd/amdgpu/amdgpu_uvd.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_uvd.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_uvd.c @@ -647,8 +647,8 @@ static int amdgpu_uvd_cs_msg_decode(stru unsigned int image_size, tmp, min_dpb_size, num_dpb_buffer; unsigned int min_ctx_size = ~0; - /* Reject invalid dimensions to prevent division by zero */ - if (width < 16 || height < 16) { + /* Reject invalid dimensions */ + if (width < 16 || height < 16 || width > 4096 || height > 4096) { dev_WARN_ONCE(adev->dev, 1, "Invalid UVD decoding dimensions (%dx%d)!\n", width, height);