{"id":"CVE-2026-93124","title":"In the Linux kernel, the following vulnerability has been resolved:\n\nplatform/x86: asus-wireless: Fail probe when there is no ACPI match\n\nEvery platform driver can be forced to match a device that does not match\nits list of device IDs be…","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nplatform/x86: asus-wireless: Fail probe when there is no ACPI match\n\nEvery platform driver can be forced to match a device that does not match\nits list of device IDs be…","severity":"none","vendor":"Linux","product":"Linux","affected":["Linux >= f7e648027d7e1b5c06eb86d944b7e23926254cee < 7bfa711f311a584002e16ecd750627306deb805c","Linux >= f7e648027d7e1b5c06eb86d944b7e23926254cee < 4aefd66ef7822cf7d3f53146dcee0b71021ed2b7","Linux 7.1"],"published":"2026-09-17","updated":"2026-09-17","sourceUpdated":"2026-09-17T17:18:07.137","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-93124","references":[{"url":"https://git.kernel.org/stable/c/4aefd66ef7822cf7d3f53146dcee0b71021ed2b7","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/7bfa711f311a584002e16ecd750627306deb805c","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"}],"tags":["nvd","cve.org"],"ingestedAt":"2026-09-17T16:21:47.750Z","epss":0.00155,"epssPercentile":0.051,"slug":"CVE-2026-93124","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nplatform/x86: asus-wireless: Fail probe when there is no ACPI match\n\nEvery platform driver can be forced to match a device that does not match\nits list of device IDs because of device_match_driver_override(), so\nplatform drivers that rely on the existence of a device ACPI companion\nobject need to verify its presence.\n\nasus_wireless_probe() returns success when acpi_match_acpi_device()\nfinds no match, leaving behind an input device that never reports\nanything because the notify handler is not installed.  Worse, when the\ndriver is force-bound to a device without an ACPI companion, probe\nstill succeeds and stores a NULL companion pointer, which\nasus_wireless_remove() later passes to acpi_dev_remove_notify_handler(),\nleading to a NULL pointer dereference on unbind.\n\nReturn -ENODEV when the device does not match the ID table.  This also\ncovers the missing-companion case, because acpi_match_acpi_device()\nrejects a NULL device.  Perform the check before allocating any driver\nstate, instead of after the input device has already been registered.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":3,"depthScoreParts":{"impact":2.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}