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 6DCCD3AA507 for ; Sun, 19 Jul 2026 15:47:46 +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=1784476067; cv=none; b=GHls+p0hm5ryYv2TTW/6z4RdEaA4VAby465KMagzUWQsZcI39ik68lSrxqXmaVVGFnf/ZZXACbz4K7FS0v+UnHyNkXAZ4m1am0Fc/BDAl/3OMuDLBuex6wFjdoBq2JvLF+KAzQEPhwbHNZL7VufWTCu4cOWcr1KSc8hG9qxn17I= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1784476067; c=relaxed/simple; bh=A9/GsKYufv3rei844LkpaZZ28wh7PXCy3vahEEdeLdQ=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=Y/YFKjI7IupbWT91k4+TqbL3paEiNMx5jlfs6Px/QvCQN+46V6g5Z79MLfH9IQ5uxfLWomn8Nv1Kc7f2bUVF1ibU/RFSVvVOY8hKjxE0KVc1ULRqvw0BibAe1GcUbkZJWWBcb6YhnXjJqED81eC9SpSB8WwNWnPH2gKXXkZljhg= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=PnyYlzCz; 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="PnyYlzCz" Received: by smtp.kernel.org (Postfix) with ESMTPSA id D12D81F000E9; Sun, 19 Jul 2026 15:47:45 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1784476066; bh=sExwLF1JZt7E1Fd2QjStBYFzZ7Au/zAVVcTbiPQ5FCU=; h=From:To:Cc:Subject:Date:Reply-To; b=PnyYlzCzsUoQ+ZVkSFzkvehrz20bmN7LNtDlA/PnohWBxvHm84ecHkzJreLcWFzIk lXf5u6Btv5GX7FMULwsCov4vVAlT6oDQq6rrMt92W0zEHvAR8L7ARzIRMnEQwTYLmP eKf3wMzwxzbi+nasnIO7Jyu4hWwyFCI97ZDIRi3w= From: Greg Kroah-Hartman To: linux-cve-announce@vger.kernel.org Cc: Greg Kroah-Hartman Subject: CVE-2026-64166: firmware: arm_ffa: Check for NULL FF-A ID table while driver registration Date: Sun, 19 Jul 2026 17:40:28 +0200 Message-ID: <2026071935-CVE-2026-64166-98a5@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=3149; i=gregkh@linuxfoundation.org; h=from:subject:message-id; bh=phzAy/uJK7nlNhVQK+v9q3lJEWEKUZQ71iLu0BaPvDE=; b=owGbwMvMwCRo6H6F97bub03G02pJDFkx76uTZPKfbSlbnm8Z+YY/YlrZ2eU7VK884O1wu7P3e JRx7oy3HbEsDIJMDLJiiixftvEc3V9xSNHL0PY0zBxWJpAhDFycAnCRSob56d36mfacCx5tupb6 hitEv9FB5tAphvlFlUFWhq9bvB5svSGgrvDC22CWw0MA 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: firmware: arm_ffa: Check for NULL FF-A ID table while driver registration The bus match callback assumes that every FF-A driver provides an id_table and dereferences it unconditionally. Enforce that contract at registration time so a buggy client driver cannot crash the bus during match. The Linux kernel CVE team has assigned CVE-2026-64166 to this issue. Affected and fixed versions =========================== Issue introduced in 5.14 with commit 92743071464fca5acbbe812d9a0d88de3eaaad36 and fixed in 5.15.209 with commit f98f131256beaddd51ad468e95d90d857fef12bf Issue introduced in 5.14 with commit 92743071464fca5acbbe812d9a0d88de3eaaad36 and fixed in 6.1.175 with commit bc499d1acddbb75b5b4bce05f5296dd8ef9611fd Issue introduced in 5.14 with commit 92743071464fca5acbbe812d9a0d88de3eaaad36 and fixed in 6.6.142 with commit adfff93d08a2e12ecf2a1eba272d18bc749f13c0 Issue introduced in 5.14 with commit 92743071464fca5acbbe812d9a0d88de3eaaad36 and fixed in 6.12.92 with commit 34f59211984f66788390e7469f3e99d3796db4a8 Issue introduced in 5.14 with commit 92743071464fca5acbbe812d9a0d88de3eaaad36 and fixed in 6.18.34 with commit 820245d86ce58898fb48b4fefc77d0cafc02801d Issue introduced in 5.14 with commit 92743071464fca5acbbe812d9a0d88de3eaaad36 and fixed in 7.0.11 with commit 198f6c86d508ed562f07dc00276cac6dbb5dd3bf Issue introduced in 5.14 with commit 92743071464fca5acbbe812d9a0d88de3eaaad36 and fixed in 7.1 with commit 0a5e695095c557d2380131b613dea4e8d90371be 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-2026-64166 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/firmware/arm_ffa/bus.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/f98f131256beaddd51ad468e95d90d857fef12bf https://git.kernel.org/stable/c/bc499d1acddbb75b5b4bce05f5296dd8ef9611fd https://git.kernel.org/stable/c/adfff93d08a2e12ecf2a1eba272d18bc749f13c0 https://git.kernel.org/stable/c/34f59211984f66788390e7469f3e99d3796db4a8 https://git.kernel.org/stable/c/820245d86ce58898fb48b4fefc77d0cafc02801d https://git.kernel.org/stable/c/198f6c86d508ed562f07dc00276cac6dbb5dd3bf https://git.kernel.org/stable/c/0a5e695095c557d2380131b613dea4e8d90371be