{"id":"CVE-2026-93124","summary":"platform/x86: asus-wireless: Fail probe when there is no ACPI match","details":"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 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.","modified":"2026-09-18T03:48:44.404675583Z","published":"2026-09-17T16:11:29.223Z","database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/93xxx/CVE-2026-93124.json","cna_assigner":"Linux"},"references":[{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"},{"type":"WEB","url":"https://git.kernel.org/stable/c/4aefd66ef7822cf7d3f53146dcee0b71021ed2b7"},{"type":"WEB","url":"https://git.kernel.org/stable/c/7bfa711f311a584002e16ecd750627306deb805c"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/93xxx/CVE-2026-93124.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-93124"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"f7e648027d7e1b5c06eb86d944b7e23926254cee"},{"fixed":"7bfa711f311a584002e16ecd750627306deb805c"},{"fixed":"4aefd66ef7822cf7d3f53146dcee0b71021ed2b7"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-93124.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"7.1.0"},{"fixed":"7.2.6"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-93124.json"}}],"schema_version":"1.9.0"}