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.

Metrics

No CVSS v4.0

Attack Vector Local

Attack Complexity High

Privileges Required Low

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Key SSVC decision points have not yet been added.

Affected Vendors & Products

Vendors Products
Linux
  • Linux Kernel

No data.

No data.

References
Link Providers
https://git.kernel.org/stable/c/0462fec709d51762ba486245bc344f44cc6cfa97 cve-icon cve-icon
https://git.kernel.org/stable/c/2deb42c4f9776e59bee247c14af9c5e8c05ca9a6 cve-icon cve-icon
https://git.kernel.org/stable/c/38e251d356a01b61a86cb35213cafd7e8fe7090c cve-icon cve-icon
https://git.kernel.org/stable/c/404ec60438add1afadaffaed34bb5fe4ddcadd40 cve-icon cve-icon
https://git.kernel.org/stable/c/5777432ebaaf797e24f059979b42df3139967163 cve-icon cve-icon
https://git.kernel.org/stable/c/799881db3e03b5e98fe6a900d9d7de8c7d61e7ee cve-icon cve-icon
https://git.kernel.org/stable/c/9ef353c92f9d04c88de3af1a46859c1fb76db0f8 cve-icon cve-icon
https://git.kernel.org/stable/c/b0b83d3f3ffa96e8395c56b83d6197e184902a34 cve-icon cve-icon
https://git.kernel.org/stable/c/f520d181477ec29a496c0b3bbfbdb7e2606c2713 cve-icon cve-icon
https://lore.kernel.org/linux-cve-announce/2025091854-CVE-2022-50411-45ab@gregkh/T cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2022-50411 cve-icon
https://www.cve.org/CVERecord?id=CVE-2022-50411 cve-icon
History

Fri, 19 Sep 2025 09:45:00 +0000

Type Values Removed Values Added
First Time appeared Linux
Linux linux Kernel
Vendors & Products Linux
Linux linux Kernel

Fri, 19 Sep 2025 00:15:00 +0000

Type Values Removed Values Added
References
Metrics threat_severity

None

 cvssV3_1

{'score': 7.0, 'vector': 'CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H'}

threat_severity

Important

Thu, 18 Sep 2025 16:15:00 +0000

Type Values Removed Values Added
Description 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.
Title ACPICA: Fix error code path in acpi_ds_call_control_method()
References
cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published: 2025-09-18T16:03:55.437Z

Updated: 2025-09-18T16:03:55.437Z

Reserved: 2025-09-17T14:53:07.002Z

Link: CVE-2022-50411

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2025-09-18T16:15:44.380

Modified: 2025-09-18T16:15:44.380

Link: CVE-2022-50411

cve-icon Redhat

Severity : Important

Publid Date: 2025-09-18T00:00:00Z

Links: CVE-2022-50411 - Bugzilla