fkie_cve-2022-50411
Vulnerability from fkie_nvd
Published
2025-09-18 16:15
Modified
2025-12-12 17:05
Severity ?
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
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.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/0462fec709d51762ba486245bc344f44cc6cfa97Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/2deb42c4f9776e59bee247c14af9c5e8c05ca9a6Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/38e251d356a01b61a86cb35213cafd7e8fe7090cPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/404ec60438add1afadaffaed34bb5fe4ddcadd40Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/5777432ebaaf797e24f059979b42df3139967163Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/799881db3e03b5e98fe6a900d9d7de8c7d61e7eePatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/9ef353c92f9d04c88de3af1a46859c1fb76db0f8Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/b0b83d3f3ffa96e8395c56b83d6197e184902a34Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/f520d181477ec29a496c0b3bbfbdb7e2606c2713Patch
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *


To clipboard 

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  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "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."
    }
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  "id": "CVE-2022-50411",
  "lastModified": "2025-12-12T17:05:59.670",
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          "attackVector": "LOCAL",
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          "baseScore": 7.8,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
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        "impactScore": 5.9,
        "source": "nvd@nist.gov",
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  "published": "2025-09-18T16:15:44.380",
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}


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