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 859D2208D7 for ; Mon, 20 May 2024 09:42:30 +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=1716198151; cv=none; b=SA7xF1wAiT94gtS8DDIW4wfRkGA79+I6favhRBZur9KgIfBbWmogF/tLsOZHHtYdTG5ljCR9wU8OY669I6UtGIUXYi15zDbCeuZ4lJ7zLHgmLtcoznpGbKyEEDOQJrGla6xpm2ghl3DFMFii3nGRr3hoZNrbRAGRhvp1qPmx0QI= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1716198151; c=relaxed/simple; bh=ftBhs8kCN7l9pBMk02nY4nRvM6sgw3GUS5FBOBIh8RU=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=mwcRo/nqdHrR9isrIbbrbCt99WPyLr0Ks+8Clzc1tz3pWCz+HPiVaY/ovX+x/IwnAsKzAutFUPtVcXnjzBR/ldYsGrPT111HXiEipYVFrepizELQGkdSCWnZMQY4FYmm8W5PMQG8VRL2PQB3RbJhqk1bgPAvBUffuAF1694dcnU= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=m+lEiGH9; 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="m+lEiGH9" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 349AFC4AF07; Mon, 20 May 2024 09:42:30 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1716198150; bh=ftBhs8kCN7l9pBMk02nY4nRvM6sgw3GUS5FBOBIh8RU=; h=From:To:Cc:Subject:Date:Reply-to:From; b=m+lEiGH9nO08h5XMh5kHDF4o+fP692uhSruXIMd9SUXGq6TUYwsN5JlsWTiApAVML rtxMfgK8Ac2TWCc3I8OQTT09t8aR7UivPjcF0Cu/XbOpPSUnlnxLPoXsps/B8Y1nGS bbFYhE4gyCPcsL+SZHUw8sbJ8c+/0xMFpuluLxgw= From: Greg Kroah-Hartman To: linux-cve-announce@vger.kernel.org Cc: Greg Kroah-Hartman Subject: CVE-2024-35951: drm/panfrost: Fix the error path in panfrost_mmu_map_fault_addr() Date: Mon, 20 May 2024 11:42:16 +0200 Message-ID: <2024052017-CVE-2024-35951-d66a@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=2281; i=gregkh@linuxfoundation.org; h=from:subject:message-id; bh=ftBhs8kCN7l9pBMk02nY4nRvM6sgw3GUS5FBOBIh8RU=; b=owGbwMvMwCRo6H6F97bub03G02pJDGneUj/LuOeErLf9XDL14ftfT14HvdKp27B5sj3TqadRX 7QX50fe6IhlYRBkYpAVU2T5so3n6P6KQ4pehranYeawMoEMYeDiFICJGG1lmO/gsZHtRFziQs4d 4bFL7y16FBpusZBhQWe7o/kUPlGHgHTRC+VN354cUCr9CQA= 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/panfrost: Fix the error path in panfrost_mmu_map_fault_addr() Subject: [PATCH] drm/panfrost: Fix the error path in panfrost_mmu_map_fault_addr() If some the pages or sgt allocation failed, we shouldn't release the pages ref we got earlier, otherwise we will end up with unbalanced get/put_pages() calls. We should instead leave everything in place and let the BO release function deal with extra cleanup when the object is destroyed, or let the fault handler try again next time it's called. The Linux kernel CVE team has assigned CVE-2024-35951 to this issue. Affected and fixed versions =========================== Issue introduced in 5.4 with commit 187d2929206e and fixed in 6.6.28 with commit 31806711e8a4 Issue introduced in 5.4 with commit 187d2929206e and fixed in 6.8.7 with commit e18070c622c6 Issue introduced in 5.4 with commit 187d2929206e and fixed in 6.9 with commit 1fc9af813b25 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-2024-35951 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/panfrost/panfrost_mmu.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/31806711e8a4b75e09b1c43652f2a6420e6e1002 https://git.kernel.org/stable/c/e18070c622c63f0cab170348e320454728c277aa https://git.kernel.org/stable/c/1fc9af813b25e146d3607669247d0f970f5a87c3