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 8EDE430E0DC for ; Wed, 24 Jun 2026 16:33:15 +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=1782318796; cv=none; b=sTmtcd3EQ3T3xmpRZcgHQ7X6C7llRs5JmOr52QNHSYwYfhZVXcOJLdRVJcBsmh6U5kUdeWGQOWV8g1yKXqjmAMk5B2ulElJ2BVFR24zKV+RNY4M1ckQg2WNsLT6H1ofE5jDAXCgB6M0cIhT3tfFylDtUnF8yGqTaQa69bejbCI4= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1782318796; c=relaxed/simple; bh=I11cwLGmI4cZ/XhjWmgLG97FT7oWHmI6PpIiKgCn1J8=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=QljH7gZmSQ/ENGUXZ8rlKNu4hUeYPD/JObA1EzPwZ4i7hzyw0R2ZXI0u7WR3RhBYPJPnKQzZiN/d2z1uS9xB1g8YRhnmKcdJ8Cu083HSilwy7Q70PXHps4hiJqz3iCSdXKq+y730kX6RJhaJHX8AOm00ILXuWfbDBLCvBT2HogM= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=BDGHjs3+; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="BDGHjs3+" Received: by smtp.kernel.org (Postfix) with ESMTPSA id D457B1F000E9; Wed, 24 Jun 2026 16:33:14 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1782318795; bh=9K3OWdNDZGDngAhsAMrqrLkGCRGoY4/wjlhOJWkoWGo=; h=From:To:Cc:Subject:Date:Reply-To; b=BDGHjs3+XyM0Jp5PceblLWh0AA9qDwNz3IJ9nxvxaN27s6dH11oCYh5vUbm4JMc0P V+dj5/aDab35hFsE/Ys5ldOJOhxOJftij5Q/8lnR8dI6S482pE04KZhVUkTeOMJOPv juaOgspz2N/woK3GirJNUlDgg4MXPlaSvORedKKg= From: Greg Kroah-Hartman To: linux-cve-announce@vger.kernel.org Cc: Greg Kroah-Hartman Subject: CVE-2026-52949: drm/ttm: Fix ttm_bo_shrink() infinite LRU walk on backup failure Date: Wed, 24 Jun 2026 17:29:33 +0100 Message-ID: <2026062433-CVE-2026-52949-3210@gregkh> X-Mailer: git-send-email 2.54.0 Reply-To: , Precedence: bulk X-Mailing-List: linux-cve-announce@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=2090; i=gregkh@linuxfoundation.org; h=from:subject:message-id; bh=VJ+os/ExNjpoShzR+EG5bqqbctX6TkuIm9o+5W2X87U=; b=owGbwMvMwCRo6H6F97bub03G02pJDFk2rG9nXX3WzRZ0hFNh8/wnch3y/OeyvvbXf1hzdoZk6 ZNCPSfVjlgWBkEmBlkxRZYv23iO7q84pOhlaHsaZg4rE8gQBi5OAZhIVgfD/JjHUv/+zrp4p7z/ /Q1hKZ5NNf1TrBjmaXx5zb/RqkNsQsG8rnMdPDeEGia9AAA= X-Developer-Key: i=gregkh@linuxfoundation.org; a=openpgp; fpr=F4B60CC5BF78C2214A313DCB3147D40DDB2DFB29 Content-Transfer-Encoding: 8bit From: Greg Kroah-Hartman Description =========== In the Linux kernel, the following vulnerability has been resolved: drm/ttm: Fix ttm_bo_shrink() infinite LRU walk on backup failure Apply the same fix as b2ed01e7ad ("drm/ttm: Fix ttm_bo_swapout() infinite LRU walk on swapout failure") to the ttm_bo_shrink() path. Move del_bulk_move from before the backup to after success only, using ttm_resource_del_bulk_move_unevictable() since the resource is now unevictable once fully backed up. The Linux kernel CVE team has assigned CVE-2026-52949 to this issue. Affected and fixed versions =========================== Issue introduced in 6.15 with commit 70d645deac98303d1bf9ab08a4e68da52bf8c1e1 and fixed in 7.0.10 with commit 9402ad98a047dd9894ec868a7df5ad9bd03327d3 Issue introduced in 6.15 with commit 70d645deac98303d1bf9ab08a4e68da52bf8c1e1 and fixed in 7.1 with commit 1d59f36e95f7f7134db0e313c9d787cb0adb2153 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-2026-52949 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/ttm/ttm_bo_util.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/9402ad98a047dd9894ec868a7df5ad9bd03327d3 https://git.kernel.org/stable/c/1d59f36e95f7f7134db0e313c9d787cb0adb2153