CVE-2026-90194

In the Linux kernel, the following vulnerability has been resolved: ACPI: scan: fix bus ID cleanup on device_add() failures When device_add() fails after acpi_device_set_name() has allocated an instance ID and a new acpi_device_bus_id has been linked into acpi_bus_id_list, the rollback path only removes wakeup_list and detaches the ACPI handle data. That leaves the bus-ID bookkeeping behind and keeps the allocated instance number consumed. Move the bus-ID cleanup and wakeup-list removal into a single helper. Use it from both the normal device teardown path and the device_add() rollback path. The wakeup list node is initialized before registration, so it can be deleted without checking whether the device is wakeup- capable like in the original teardown path. [ rjw: Rename acpi_device_del_list() to acpi_device_cleanup() ] [ rjw: Subject and changelog edits ]

CVSS

No CVSS.

References

Link	Resource
https://git.kernel.org/stable/c/0b9053cd0955c7cd66d71a8442be33926d70e197
https://git.kernel.org/stable/c/15512c6b5dea72fb5f1f41c1aa96f3f32531ca03
https://git.kernel.org/stable/c/83ee65feadc88de681abc6e977d54eceda95abd7
https://git.kernel.org/stable/c/8cc2017aa804f157e717b5fd471e50fbddfec654
https://git.kernel.org/stable/c/a414485ebc2aa50907d0ce97cde2b1a353696897
https://git.kernel.org/stable/c/f30379b8a4e24623594235dd5aefb2957e0cc228

Configurations

No configuration.

History

17 Sep 2026, 17:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-09-17 17:17

Updated : 2026-09-17 17:17

NVD link : CVE-2026-90194

Mitre link : CVE-2026-90194

CVE.ORG link : CVE-2026-90194

JSON object : View

Products Affected

No product.

CWE

No CWE.

{"id": "CVE-2026-90194", "cveTags": [], "metrics": {}, "affected": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "affectedData": [{"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "d783156ea38431b20af0d4f910a6f9f9054d33b9", "lessThan": "8cc2017aa804f157e717b5fd471e50fbddfec654", "versionType": "git"}, {"status": "affected", "version": "d783156ea38431b20af0d4f910a6f9f9054d33b9", "lessThan": "f30379b8a4e24623594235dd5aefb2957e0cc228", "versionType": "git"}, {"status": "affected", "version": "d783156ea38431b20af0d4f910a6f9f9054d33b9", "lessThan": "83ee65feadc88de681abc6e977d54eceda95abd7", "versionType": "git"}, {"status": "affected", "version": "d783156ea38431b20af0d4f910a6f9f9054d33b9", "lessThan": "15512c6b5dea72fb5f1f41c1aa96f3f32531ca03", "versionType": "git"}, {"status": "affected", "version": "d783156ea38431b20af0d4f910a6f9f9054d33b9", "lessThan": "0b9053cd0955c7cd66d71a8442be33926d70e197", "versionType": "git"}, {"status": "affected", "version": "d783156ea38431b20af0d4f910a6f9f9054d33b9", "lessThan": "a414485ebc2aa50907d0ce97cde2b1a353696897", "versionType": "git"}], "programFiles": ["drivers/acpi/scan.c"], "defaultStatus": "unaffected"}, {"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "3.14"}, {"status": "unaffected", "version": "0", "lessThan": "3.14", "versionType": "semver"}, {"status": "unaffected", "version": "6.1.188", "versionType": "semver", "lessThanOrEqual": "6.1.*"}, {"status": "unaffected", "version": "6.6.157", "versionType": "semver", "lessThanOrEqual": "6.6.*"}, {"status": "unaffected", "version": "6.12.110", "versionType": "semver", "lessThanOrEqual": "6.12.*"}, {"status": "unaffected", "version": "6.18.52", "versionType": "semver", "lessThanOrEqual": "6.18.*"}, {"status": "unaffected", "version": "7.2.6", "versionType": "semver", "lessThanOrEqual": "7.2.*"}, {"status": "unaffected", "version": "7.3-rc1", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*"}], "programFiles": ["drivers/acpi/scan.c"], "defaultStatus": "affected"}]}], "published": "2026-09-17T17:17:14.150", "references": [{"url": "https://git.kernel.org/stable/c/0b9053cd0955c7cd66d71a8442be33926d70e197", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/15512c6b5dea72fb5f1f41c1aa96f3f32531ca03", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/83ee65feadc88de681abc6e977d54eceda95abd7", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/8cc2017aa804f157e717b5fd471e50fbddfec654", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/a414485ebc2aa50907d0ce97cde2b1a353696897", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/f30379b8a4e24623594235dd5aefb2957e0cc228", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "vulnStatus": "Received", "descriptions": [{"lang": "en", "value": "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 ]"}], "lastModified": "2026-09-17T17:17:14.150", "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}