GHSA-37WW-VF7X-2832
Vulnerability from github – Published: 2026-09-17 18:31 – Updated: 2026-09-17 18:31In 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": [],
"aliases": [
"CVE-2026-90194"
],
"database_specific": {
"cwe_ids": [],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-09-17T17:17:14Z",
"severity": null
},
"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 ]",
"id": "GHSA-37ww-vf7x-2832",
"modified": "2026-09-17T18:31:55Z",
"published": "2026-09-17T18:31:55Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-90194"
},
{
"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"
}
],
"schema_version": "1.4.0",
"severity": []
}
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