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 65C903A75A2 for ; Sun, 19 Jul 2026 15:43:10 +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=1784475791; cv=none; b=kTURRL0dXk+cPqWMLiFKXAJv/p081T86b5/bsN7NZNehMGpWRxxYJIAXollLgnHo/svYN2IeETF8cHGdiqQQzZkVMNODy0i+E8DKInzhxXM6cB3at/BFiLZ1O28wfWe10vsEoggKvnLBbT4lIo4p5yuZsOAnAdoDj4sC66wNkFg= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1784475791; c=relaxed/simple; bh=1JIddf7Fn1On3rRw9oAneWHCCsDJXun1zeiafswkwSs=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=m4c2BIWDkwnQX8KVK11pXGTHpJCDeZ2ccDl2YIB9cfVxvh0AJ7sSYvo6m/W31oMYr0/nE+h6uy4bTmZQV4NpLY1RR7oWYobd0dbnvlAuTJVqr0aQNb31c/noldy1n+yzg11Qliz5JI2227D/WMPPNXMXLWwQb0BzAX8Jb+WXy7E= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=O/wv6Epr; 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="O/wv6Epr" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 79BAF1F000E9; Sun, 19 Jul 2026 15:43:09 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1784475790; bh=Xj1h3ZCzMTVLZ7XDHESKyHwxiqODOQ+sg5ZEFFUnx8o=; h=From:To:Cc:Subject:Date:Reply-To; b=O/wv6EprDdmwWCW86+oyhG58mZJMJE4qRdUpcHV7924JSzbQM5A86ZrGh4KjjhES3 3iVd6Z3FjlGyIGF1nMld7Z5IZ+xvnATScmpd6U1+5aDYFVLkiytDtbn4oi1UMVdbUw KLze6ioreqgS4O0bQeDitdLN5AsCPbqswU4Neqog= From: Greg Kroah-Hartman To: linux-cve-announce@vger.kernel.org Cc: Greg Kroah-Hartman Subject: CVE-2026-64049: drm/msm/adreno: fix userspace-triggered crash on a2xx-a4xx Date: Sun, 19 Jul 2026 17:38:31 +0200 Message-ID: <2026071908-CVE-2026-64049-5474@gregkh> X-Mailer: git-send-email 2.55.0 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=2400; i=gregkh@linuxfoundation.org; h=from:subject:message-id; bh=25xTAL8L0c3TZNE+1qgUxDjBLZum2ZsnL+AtD9ETX+Y=; b=owGbwMvMwCRo6H6F97bub03G02pJDFkx7xM+y6pEFZeUf53UWzbVtdJB/aGr5f/ZTnnpJuvtt 3foxc/qiGVhEGRikBVTZPmyjefo/opDil6Gtqdh5rAygQxh4OIUgIksq2dYMG9WqMrZX/WdfIaV cx/sc2X+6PrqCcMcnqvJqo/UFdv9U0vVLjyLONyvtEMGAA== 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/msm/adreno: fix userspace-triggered crash on a2xx-a4xx Before a5xx Adreno driver will not try fetching UBWC params (because those generations didn't support UBWC anyway), however it's still possible to query UBWC-related params from the userspace, triggering possible NULL pointer dereference. Check for UBWC config in adreno_get_param() and return sane defaults if there is none. Patchwork: https://patchwork.freedesktop.org/patch/717778/ The Linux kernel CVE team has assigned CVE-2026-64049 to this issue. Affected and fixed versions =========================== Issue introduced in 6.17 with commit a452510aad53f665eb422784ff525c4889aa246f and fixed in 6.18.34 with commit eea43d5ed45089705bc5d70971c39076962d5951 Issue introduced in 6.17 with commit a452510aad53f665eb422784ff525c4889aa246f and fixed in 7.0.11 with commit 22fc33d9b67694b24e0deb3f08c622464338cecb Issue introduced in 6.17 with commit a452510aad53f665eb422784ff525c4889aa246f and fixed in 7.1 with commit 2b4abf879360ea00a9e2b46d2d15dcdbc0687eed 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-2026-64049 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/msm/adreno/adreno_gpu.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/eea43d5ed45089705bc5d70971c39076962d5951 https://git.kernel.org/stable/c/22fc33d9b67694b24e0deb3f08c622464338cecb https://git.kernel.org/stable/c/2b4abf879360ea00a9e2b46d2d15dcdbc0687eed