From mboxrd@z Thu Jan 1 00:00:00 1970 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 460793CFF55; Tue, 15 Sep 2026 02:03:58 +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=1789437840; cv=none; b=IAcB9tEM6OZSGwSHqto0bATuDTAQMfeNHrXu7mW7wQfsHoP1GTnB9dKaJoSjfMKX8Aa6mPWWVSd63IJ76duiiUi1oUZq53rMZ8XUwFZ7yveDtpBpskJLPjCT3VuqqHXq6ITvoD06gNubb2clXA6e25exP9z+8HMhToXw+wj/CPc= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1789437840; c=relaxed/simple; bh=0I/otgPlBKLGHuU2YvX6jFtyfcM4XulavRj5rilrl8Q=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=k6JEpju32O8p+MGfW5Q0kEEYNXi/KZOyI0Dm7XqzmGZVUUEo5yJcrpjnwpAhpPTo1Dw0v57sNpxrhqkJ0Jn5BR0f8M97VybbDzuRnzK4fu7Lk9laTAC9W17h4FC1fyH1dY7098Wv7XuhXKMEXXnWW2/yYPVYwkbEizZEPYfo05M= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=jKIveioP; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="jKIveioP" Received: by smtp.kernel.org (Postfix) with ESMTPSA id BA0291F0089B; Tue, 15 Sep 2026 02:03:55 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1789437838; bh=z0vL2p+Bd88btvl3Ksm1wFnOPohiOiTkBKSRUoYcHVM=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=jKIveioPNhMqPBhOJHPVrFRe2TZU9csQBTAj24Nftp8XjhJudo+o/kpgK4cZ9MEcD kfA2tqmfMEdKI0BdpYR4ayV7j+459XEIq9gzICqy3hOEpaofPwq7TC+hl1NmMMG17z wCcRRadLkpzn0xRHzUC3oJKos4jCot8G5C1ithqxsMhAMMv8oyHfelW4JRr8etH37T GwNf4RHs6YbK+/yV7P9LIhZEMZhqIUO4xRHVw4e5XYRBcWd/V00wUpfmCL3sA3P+sx Vx42Jksvt7+Zz4nVDvdlyQS8amvJSZMFva2Y6tUF0yGBNOt59vIF+yBTAsmBQwuIQQ KXUEDFhiZWbCA== From: Sasha Levin To: stable@vger.kernel.org, Greg Kroah-Hartman Cc: Sasha Levin , Roman Demidov , Harry Wentland , Leo Li , Rodrigo Siqueira , Alex Deucher , =?UTF-8?q?Christian=20K=C3=B6nig?= , Xinhui Pan , David Airlie , Simona Vetter , Wayne Lin , =?UTF-8?q?Timur=20Krist=C3=B3f?= , Fangzhi Zuo , Mario Limonciello , Srinivasan Shanmugam , Ivan Lipski , Melissa Wen , Alex Hung , "Mario Limonciello (AMD)" , Thomas Zimmermann , Sunil Khatri , Andrey Grodzovsky , Bhawanpreet Lakha , amd-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, WenTao Liang , George Zhang Subject: Re: [PATCH 5.10/6.1] drm/amd/display: set new_stream to NULL after release Date: Mon, 14 Sep 2026 22:03:31 -0400 Message-ID: X-Mailer: git-send-email 2.53.0 In-Reply-To: <20260914081639.12512-1-roman.demidov.nn@gmail.com> References: <20260914081639.12512-1-roman.demidov.nn@gmail.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit > If a later error (e.g., color management failure) triggers the fail > label, the error path calls dc_stream_release() again on the same > dangling pointer, causing a double release and potential use-after-free. 5.15 carries the same double release of new_stream in dm_update_crtc_state() and has no fix for it, so taking 6.1 and 5.10 alone would make a 5.10 to 5.15 upgrade a regression. Could you send a v2 covering 5.15 as well? -- Thanks, Sasha