CVE-2026-90194

Summary

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 ]

Affected Software

VendorProductVersion RangeStatus
LinuxLinuxd783156ea38431b20af0d4f910a6f9f9054d33b9 < 8cc2017aa804f157e717b5fd471e50fbddfec654affected
LinuxLinuxd783156ea38431b20af0d4f910a6f9f9054d33b9 < f30379b8a4e24623594235dd5aefb2957e0cc228affected
LinuxLinuxd783156ea38431b20af0d4f910a6f9f9054d33b9 < 83ee65feadc88de681abc6e977d54eceda95abd7affected
LinuxLinuxd783156ea38431b20af0d4f910a6f9f9054d33b9 < 15512c6b5dea72fb5f1f41c1aa96f3f32531ca03affected
LinuxLinuxd783156ea38431b20af0d4f910a6f9f9054d33b9 < 0b9053cd0955c7cd66d71a8442be33926d70e197affected
LinuxLinuxd783156ea38431b20af0d4f910a6f9f9054d33b9 < a414485ebc2aa50907d0ce97cde2b1a353696897affected
LinuxLinux3.14affected
LinuxLinux0 < 3.14unaffected
LinuxLinux6.1.188 <= 6.1.*unaffected
LinuxLinux6.6.157 <= 6.6.*unaffected
LinuxLinux6.12.110 <= 6.12.*unaffected
LinuxLinux6.18.52 <= 6.18.*unaffected
LinuxLinux7.2.6 <= 7.2.*unaffected
LinuxLinux7.3-rc1 <= *unaffected

Weaknesses

References