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 49EC91494DB; Thu, 5 Sep 2024 10:05:12 +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=1725530712; cv=none; b=pcknFWAOA3z1t8kNgXE771TFWNuL2/d942STxJV0aLrlO3MFe4uJPVU0YCMLkg3zInrthVqIunZl7LHgCt7fdtoPq1DljuBMshTOqQuEyJa/+Hfbtum+uMZqrQLFNQi4Su6q2JoKQj84xk6cz0HrYpT+wZ4vRu5Aj0V1FBRj0rY= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1725530712; c=relaxed/simple; bh=TIJWgG4TSa9XC+S02/lqXg1DWJfIwOxfdtTLKav0mZ8=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=OMumUuAKIA9UhbcR3BYeT8omkU63HHTjXvjifCdi3OE8felkT+JabjYWvJOFNbh0GoosR79hFVtb5TN3bvV1DushegCtcyZlvZFC+i+M53yMUuYvngW15hxKSBWG1/uq87qz65uBFAmGKql/ErGgy5oT7KbjVMa1v5Sypo3jJow= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=g8y5whjy; 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="g8y5whjy" Received: by smtp.kernel.org (Postfix) with ESMTPSA id C5714C4CEC3; Thu, 5 Sep 2024 10:05:11 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1725530712; bh=TIJWgG4TSa9XC+S02/lqXg1DWJfIwOxfdtTLKav0mZ8=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=g8y5whjyTrpdGBqQElYoDbcA8wetj8R3gJ04B4AdTi6ygSVImiCMFr5WTvG38VFim 2l4tfdPVWVDSHrmho/ITtWM+UdaJp6z62z//SoI/obHmZpqiTzoT/eSsCZdGjnjP0n nfBYSZq0+F0xsUzaCGJpixupbD8qpH9qG7KMn63E= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Alvin Lee , Zaeem Mohamed , winstang , Daniel Wheeler , Alex Deucher , Sasha Levin Subject: [PATCH 6.1 090/101] drm/amd/display: added NULL check at start of dc_validate_stream Date: Thu, 5 Sep 2024 11:42:02 +0200 Message-ID: <20240905093719.647567780@linuxfoundation.org> X-Mailer: git-send-email 2.46.0 In-Reply-To: <20240905093716.075835938@linuxfoundation.org> References: <20240905093716.075835938@linuxfoundation.org> User-Agent: quilt/0.67 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 6.1-stable review patch. If anyone has any objections, please let me know. ------------------ From: winstang [ Upstream commit 26c56049cc4f1705b498df013949427692a4b0d5 ] [Why] prevent invalid memory access [How] check if dc and stream are NULL Co-authored-by: winstang Reviewed-by: Alvin Lee Acked-by: Zaeem Mohamed Signed-off-by: winstang Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher Signed-off-by: Sasha Levin --- drivers/gpu/drm/amd/display/dc/core/dc_resource.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_resource.c b/drivers/gpu/drm/amd/display/dc/core/dc_resource.c index 83898e46bcad..29400db42bb2 100644 --- a/drivers/gpu/drm/amd/display/dc/core/dc_resource.c +++ b/drivers/gpu/drm/amd/display/dc/core/dc_resource.c @@ -3629,6 +3629,9 @@ void resource_build_bit_depth_reduction_params(struct dc_stream_state *stream, enum dc_status dc_validate_stream(struct dc *dc, struct dc_stream_state *stream) { + if (dc == NULL || stream == NULL) + return DC_ERROR_UNEXPECTED; + struct dc_link *link = stream->link; struct timing_generator *tg = dc->res_pool->timing_generators[0]; enum dc_status res = DC_OK; -- 2.43.0