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 58B99198822; Thu, 5 Sep 2024 09:58:53 +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=1725530334; cv=none; b=BJv0L4EJfqK413CJjmbR3+TVXfXIHmmo1fwV2xPdEIqxSC/2l5j8vJ9UXoMQtiuvPWa/8bzEYQykgjesjVExtJZGqPlzPNfwb6vLL/BxVwVsHCRJhzBefVBCuoAeNfLQuefqo32D3ngTr2WSgrMM6KHu1aEIsJ3Elt8JFi+Id90= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1725530334; c=relaxed/simple; bh=niSO8lyBPC6IWrHJqQBR4KbswuD2+uV5Wjqy/Esy4mg=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=sOTTajwku0k3pZNCDPKv9/+VbcO7j44gd3SsWrrYZFcB9jxmxVA2HhiEH2Kh/LO3kxDetVwobgOVAia4ij4hnt3G3bq7Jv4bDxbuhmGzVf5jK/M5Fv2oUWZYucg6RdHQgoNRknfyxeAJsaS3cmE5Xb+qbUXDaEDiAtLOvfUrDZ4= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=odKTUcIv; 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="odKTUcIv" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 58676C4CEC3; Thu, 5 Sep 2024 09:58:53 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1725530333; bh=niSO8lyBPC6IWrHJqQBR4KbswuD2+uV5Wjqy/Esy4mg=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=odKTUcIvNfrBJFGGDI+lu+JzEGnHYQLjD36OtGJAiYhlUz61Mrcby9McRP99WV0q6 6zFaCVkFcCRlIj5cDJkuvMk/xM/WvXUppUEi86GF0p9XRaR7d780oXZoO+YZpsxUTt TIWBdPmaZgLdk1qofDJOF11XYhJpvVYvfXZOpJTc= 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 6.6 124/132] drm/amd/display: added NULL check at start of dc_validate_stream Date: Thu, 5 Sep 2024 11:41:51 +0200 Message-ID: <20240905093727.038074240@linuxfoundation.org> X-Mailer: git-send-email 2.46.0 In-Reply-To: <20240905093722.230767298@linuxfoundation.org> References: <20240905093722.230767298@linuxfoundation.org> User-Agent: quilt/0.67 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: 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 84923c5400d3..733e445331ea 100644 --- a/drivers/gpu/drm/amd/display/dc/core/dc_resource.c +++ b/drivers/gpu/drm/amd/display/dc/core/dc_resource.c @@ -3927,6 +3927,9 @@ 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