{"id":"CVE-2026-90194","title":"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 …","summary":"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 …","severity":"medium","vendor":"Linux","product":"Linux","affected":["Linux >= d783156ea38431b20af0d4f910a6f9f9054d33b9 < 8cc2017aa804f157e717b5fd471e50fbddfec654","Linux >= d783156ea38431b20af0d4f910a6f9f9054d33b9 < f30379b8a4e24623594235dd5aefb2957e0cc228","Linux >= d783156ea38431b20af0d4f910a6f9f9054d33b9 < 83ee65feadc88de681abc6e977d54eceda95abd7","Linux >= d783156ea38431b20af0d4f910a6f9f9054d33b9 < 15512c6b5dea72fb5f1f41c1aa96f3f32531ca03","Linux >= d783156ea38431b20af0d4f910a6f9f9054d33b9 < 0b9053cd0955c7cd66d71a8442be33926d70e197","Linux >= d783156ea38431b20af0d4f910a6f9f9054d33b9 < a414485ebc2aa50907d0ce97cde2b1a353696897","Linux 3.14"],"published":"2026-09-17","updated":"2026-09-17","sourceUpdated":"2026-09-17T17:17:14.150","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-90194","references":[{"url":"https://git.kernel.org/stable/c/0b9053cd0955c7cd66d71a8442be33926d70e197","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/15512c6b5dea72fb5f1f41c1aa96f3f32531ca03","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/83ee65feadc88de681abc6e977d54eceda95abd7","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/8cc2017aa804f157e717b5fd471e50fbddfec654","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/a414485ebc2aa50907d0ce97cde2b1a353696897","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/f30379b8a4e24623594235dd5aefb2957e0cc228","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-90194.json"},{"url":"https://access.redhat.com/security/cve/CVE-2026-90194"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2536461"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-90194"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-90194"},{"url":"https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-90194.mbox"}],"tags":["nvd","cve.org","csaf","vex","red-hat"],"ingestedAt":"2026-09-17T16:21:47.862Z","epss":0.00205,"epssPercentile":0.10456,"cvss":5.5,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","cvssSource":"vendor","cwe":["CWE-772"],"slug":"CVE-2026-90194","body":"## Overview\n\nIn 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 ]\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.\n\n## Vendor advisories\n\n- **Red Hat VEX** · Low · affected: Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 6, Red Hat Enterprise Linux 7, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 9, Red Hat OpenShift Container Platform 4 · no fix planned: Red Hat Enterprise Linux 6, Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 7, Red Hat Enterprise Linux 8, … · updated 2026-10-05 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-90194.json)","depth":"sunlit","depthScore":30,"depthScoreParts":{"impact":30.3,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[{"seq":216294,"id":"CVE-2026-90194","ts":1791274067516,"field":"cvss","old":null,"new":"5.5"},{"seq":216293,"id":"CVE-2026-90194","ts":1791274067516,"field":"severity","old":"none","new":"medium"}]}