ghsa-mf8m-3p99-jg2c
Vulnerability from github
Published
2025-09-18 18:30
Modified
2025-09-18 18:30
Details

In the Linux kernel, the following vulnerability has been resolved:

ACPICA: Fix error code path in acpi_ds_call_control_method()

A use-after-free in acpi_ps_parse_aml() after a failing invocaion of acpi_ds_call_control_method() is reported by KASAN [1] and code inspection reveals that next_walk_state pushed to the thread by acpi_ds_create_walk_state() is freed on errors, but it is not popped from the thread beforehand. Thus acpi_ds_get_current_walk_state() called by acpi_ps_parse_aml() subsequently returns it as the new walk state which is incorrect.

To address this, make acpi_ds_call_control_method() call acpi_ds_pop_walk_state() to pop next_walk_state from the thread before returning an error.

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{
  "affected": [],
  "aliases": [
    "CVE-2022-50411"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-09-18T16:15:44Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nACPICA: Fix error code path in acpi_ds_call_control_method()\n\nA use-after-free in acpi_ps_parse_aml() after a failing invocaion of\nacpi_ds_call_control_method() is reported by KASAN [1] and code\ninspection reveals that next_walk_state pushed to the thread by\nacpi_ds_create_walk_state() is freed on errors, but it is not popped\nfrom the thread beforehand.  Thus acpi_ds_get_current_walk_state()\ncalled by acpi_ps_parse_aml() subsequently returns it as the new\nwalk state which is incorrect.\n\nTo address this, make acpi_ds_call_control_method() call\nacpi_ds_pop_walk_state() to pop next_walk_state from the thread before\nreturning an error.",
  "id": "GHSA-mf8m-3p99-jg2c",
  "modified": "2025-09-18T18:30:27Z",
  "published": "2025-09-18T18:30:27Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-50411"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/0462fec709d51762ba486245bc344f44cc6cfa97"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2deb42c4f9776e59bee247c14af9c5e8c05ca9a6"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/38e251d356a01b61a86cb35213cafd7e8fe7090c"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/404ec60438add1afadaffaed34bb5fe4ddcadd40"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/5777432ebaaf797e24f059979b42df3139967163"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/799881db3e03b5e98fe6a900d9d7de8c7d61e7ee"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9ef353c92f9d04c88de3af1a46859c1fb76db0f8"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b0b83d3f3ffa96e8395c56b83d6197e184902a34"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f520d181477ec29a496c0b3bbfbdb7e2606c2713"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}


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