{"id":"CVE-2026-90194","summary":"ACPI: scan: fix bus ID cleanup on device_add() failures","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nACPI: scan: fix bus ID cleanup on device_add() failures\n\nWhen device_add() fails after acpi_device_set_name() has allocated an\ninstance ID and a new acpi_device_bus_id has been linked into\nacpi_bus_id_list, the rollback path only removes wakeup_list and\ndetaches the ACPI handle data.\n\nThat leaves the bus-ID bookkeeping behind and keeps the allocated\ninstance number consumed.\n\nMove the bus-ID cleanup and wakeup-list removal into a single helper.\n\nUse it from both the normal device teardown path and the device_add()\nrollback path. The wakeup list node is initialized before registration,\nso it can be deleted without checking whether the device is wakeup-\ncapable like in the original teardown path.\n\n[ rjw: Rename acpi_device_del_list() to acpi_device_cleanup() ]\n[ rjw: Subject and changelog edits ]","modified":"2026-09-18T03:48:36.384780029Z","published":"2026-09-17T16:07:14.317Z","database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/90xxx/CVE-2026-90194.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/0b9053cd0955c7cd66d71a8442be33926d70e197"},{"type":"WEB","url":"https://git.kernel.org/stable/c/15512c6b5dea72fb5f1f41c1aa96f3f32531ca03"},{"type":"WEB","url":"https://git.kernel.org/stable/c/83ee65feadc88de681abc6e977d54eceda95abd7"},{"type":"WEB","url":"https://git.kernel.org/stable/c/8cc2017aa804f157e717b5fd471e50fbddfec654"},{"type":"WEB","url":"https://git.kernel.org/stable/c/a414485ebc2aa50907d0ce97cde2b1a353696897"},{"type":"WEB","url":"https://git.kernel.org/stable/c/f30379b8a4e24623594235dd5aefb2957e0cc228"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/90xxx/CVE-2026-90194.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-90194"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"d783156ea38431b20af0d4f910a6f9f9054d33b9"},{"fixed":"8cc2017aa804f157e717b5fd471e50fbddfec654"},{"fixed":"f30379b8a4e24623594235dd5aefb2957e0cc228"},{"fixed":"83ee65feadc88de681abc6e977d54eceda95abd7"},{"fixed":"15512c6b5dea72fb5f1f41c1aa96f3f32531ca03"},{"fixed":"0b9053cd0955c7cd66d71a8442be33926d70e197"},{"fixed":"a414485ebc2aa50907d0ce97cde2b1a353696897"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-90194.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"3.14.0"},{"fixed":"6.1.188"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.2.0"},{"fixed":"6.6.157"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.7.0"},{"fixed":"6.12.110"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.13.0"},{"fixed":"6.18.52"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.19.0"},{"fixed":"7.2.6"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-90194.json"}}],"schema_version":"1.9.0"}