CVE-2026-90194 (GCVE-0-2026-90194)
Vulnerability from cvelistv5
Published
2026-09-17 16:07
Modified
2026-10-19 08:59
Severity ?
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 ]
References
Impacted products
Vendor Product Version
Linux Linux Version: d783156ea38431b20af0d4f910a6f9f9054d33b9
Version: d783156ea38431b20af0d4f910a6f9f9054d33b9
Version: d783156ea38431b20af0d4f910a6f9f9054d33b9
Version: d783156ea38431b20af0d4f910a6f9f9054d33b9
Version: d783156ea38431b20af0d4f910a6f9f9054d33b9
Version: d783156ea38431b20af0d4f910a6f9f9054d33b9
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{
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          "programFiles": [
            "drivers/acpi/scan.c"
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          "vendor": "Linux",
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              "version": "0",
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              "version": "7.3",
              "versionType": "original_commit_for_fix"
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      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
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                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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              "operator": "OR"
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      "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 ]"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-19T08:59:30.730Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/8cc2017aa804f157e717b5fd471e50fbddfec654"
        },
        {
          "url": "https://git.kernel.org/stable/c/f30379b8a4e24623594235dd5aefb2957e0cc228"
        },
        {
          "url": "https://git.kernel.org/stable/c/83ee65feadc88de681abc6e977d54eceda95abd7"
        },
        {
          "url": "https://git.kernel.org/stable/c/15512c6b5dea72fb5f1f41c1aa96f3f32531ca03"
        },
        {
          "url": "https://git.kernel.org/stable/c/0b9053cd0955c7cd66d71a8442be33926d70e197"
        },
        {
          "url": "https://git.kernel.org/stable/c/a414485ebc2aa50907d0ce97cde2b1a353696897"
        }
      ],
      "title": "ACPI: scan: fix bus ID cleanup on device_add() failures",
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  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-90194",
    "datePublished": "2026-09-17T16:07:14.317Z",
    "dateReserved": "2026-09-11T19:38:34.792Z",
    "dateUpdated": "2026-10-19T08:59:30.730Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


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