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 AE09E168DC for ; Sun, 19 May 2024 08:37:18 +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=1716107838; cv=none; b=hmOFcAmwIYEiOUx/zi0Bz88Mh67oXiVVLvtzB+Ky6QJnv+AO9Cfisew8457NiHLZN1V5W/gczv93POzgjQUX/IPI+/HxjHnlR5dOa3h60yBA8WDIL+xpu6YZKvlSSJ6zpOIiPxCfjOGCQ7ocqlli5P6Dg1wbAwu2Ew57Ble9N64= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1716107838; c=relaxed/simple; bh=naly0HHe51g4napP+M03foEObxyShpnsMfuoYuAxlmI=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=Ll9DI9Rbs2WHdScpeRTgPFcwYcZJlxh8Xl3QVC628P/O5gmfNLIwZXRJACbJikY0PzL4lv8m0CY9eXJVO3DOFIYboyy+TRtKMWefj0nch8SfB/8JipxDGKafgf0kUs/j8k3W0f5xQ1TwCm+AmGCXWLVhDqe9OabR66FCPUoIE+E= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=F3MM+PL6; 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="F3MM+PL6" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 3373CC32781; Sun, 19 May 2024 08:37:18 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1716107838; bh=naly0HHe51g4napP+M03foEObxyShpnsMfuoYuAxlmI=; h=From:To:Cc:Subject:Date:Reply-to:From; b=F3MM+PL6+YoWL0hLwy9hd8lklXUf/n4a3oqNx3rY/XG3/16lYqrzjXjCHE0CTvMWi BKVBYluQyCY927NTtANpesaNh+FVv1ASF+83AIZGA9TkyUrIXzJ6ZJ71f+HpbpiVC4 AO8RgzDQgM7U5BeEi9TVyVrDftbRcR2wCGCRw2Rc= From: Greg Kroah-Hartman To: linux-cve-announce@vger.kernel.org Cc: Greg Kroah-Hartman Subject: CVE-2024-35906: drm/amd/display: Send DTBCLK disable message on first commit Date: Sun, 19 May 2024 10:35:20 +0200 Message-ID: <2024051954-CVE-2024-35906-1c6f@gregkh> X-Mailer: git-send-email 2.45.1 Precedence: bulk X-Mailing-List: linux-cve-announce@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Reply-to: , X-Developer-Signature: v=1; a=openpgp-sha256; l=1899; i=gregkh@linuxfoundation.org; h=from:subject:message-id; bh=naly0HHe51g4napP+M03foEObxyShpnsMfuoYuAxlmI=; b=owGbwMvMwCRo6H6F97bub03G02pJDGmeO9eJXnuScLBMw9SbX2+b9M7tazbOfXfqZaI9f0l0I ++UOcddOmJZGASZGGTFFFm+bOM5ur/ikKKXoe1pmDmsTCBDGLg4BWAiMVkM8303sDv7SAeK3nrD ZddisDHWlMO0l2F+7o8t9xfqGN3atdS95OyXqY7ds+QSAQ== X-Developer-Key: i=gregkh@linuxfoundation.org; a=openpgp; fpr=F4B60CC5BF78C2214A313DCB3147D40DDB2DFB29 Content-Transfer-Encoding: 8bit Description =========== In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Send DTBCLK disable message on first commit [Why] Previous patch to allow DTBCLK disable didn't address boot case. Driver thinks DTBCLK is disabled by default, so we don't send disable message to PMFW. DTBCLK is then enabled at idle desktop on boot, burning power. [How] Set dtbclk_en to true on boot so that disable message is sent during first commit. The Linux kernel CVE team has assigned CVE-2024-35906 to this issue. Affected and fixed versions =========================== Fixed in 6.8.5 with commit 0dab75b433ed Fixed in 6.9 with commit f341055b10bd Please see https://www.kernel.org for a full list of currently supported kernel versions by the kernel community. Unaffected versions might change over time as fixes are backported to older supported kernel versions. The official CVE entry at https://cve.org/CVERecord/?id=CVE-2024-35906 will be updated if fixes are backported, please check that for the most up to date information about this issue. Affected files ============== The file(s) affected by this issue are: drivers/gpu/drm/amd/display/dc/clk_mgr/dcn35/dcn35_clk_mgr.c Mitigation ========== The Linux kernel CVE team recommends that you update to the latest stable kernel version for this, and many other bugfixes. Individual changes are never tested alone, but rather are part of a larger kernel release. Cherry-picking individual commits is not recommended or supported by the Linux kernel community at all. If however, updating to the latest release is impossible, the individual changes to resolve this issue can be found at these commits: https://git.kernel.org/stable/c/0dab75b433ed2480d57ae4f8f725186a46223e42 https://git.kernel.org/stable/c/f341055b10bd8be55c3c995dff5f770b236b8ca9