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{"bugzilla": {"description": "kernel: firmware: arm_ffa: Check for NULL FF-A ID table while driver registration", "id": "2502560", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2502560"}, "csaw": false, "cwe": "CWE-476", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nfirmware: arm_ffa: Check for NULL FF-A ID table while driver registration\nThe bus match callback assumes that every FF-A driver provides an\nid_table and dereferences it unconditionally. Enforce that contract at\nregistration time so a buggy client driver cannot crash the bus during\nmatch.", "A flaw was found in the Linux kernel's ARM FF-A (Firmware Framework for Arm) firmware. This vulnerability occurs during driver registration, where the bus match callback assumes that every FF-A driver provides an ID table and dereferences it unconditionally. A buggy client driver could exploit this to cause a system crash, leading to a Denial of Service (DoS)."], "name": "CVE-2026-64166", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-07-19T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-64166\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-64166\nhttps://lore.kernel.org/linux-cve-announce/2026071935-CVE-2026-64166-98a5@gregkh/T"]}