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 ]
Analysis
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Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | |||||||||||||||||||||||||||
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| Linux | Linux | unaffected |
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| Linux | Linux | affected |
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No data.
No data.
No data available yet.
No vendor fix or workaround currently provided.
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Thu, 17 Sep 2026 16:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | 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 ] | |
| Title | ACPI: scan: fix bus ID cleanup on device_add() failures | |
| First Time appeared |
Linux
Linux linux Kernel |
|
| CPEs | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | |
| Vendors & Products |
Linux
Linux linux Kernel |
|
| References |
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MITRE
Status: PUBLISHED
Assigner: Linux
Published:
Updated: 2026-09-17T16:07:14.317Z
Reserved: 2026-09-11T19:38:34.792Z
Link: CVE-2026-90194
Vulnrichment
No data.
NVD
Status : Received
Published: 2026-09-17T17:17:14.150
Modified: 2026-09-17T17:17:14.150
Link: CVE-2026-90194
Redhat
No data.
OpenCVE Enrichment
No data.
No weakness.