# CVE-2022-50411: linux: In the Linux kernel, the following vulnerability has been resolved:  ACPICA: Fix error code path in acpi_ds_call_cont...

CVE-2022-50411 is fixed in linux on 1 platform, first by DEBIAN-CVE-2022-50411, released September 18, 2025. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2022-50411
- Priority: High
- CVSS: 7.8 (high)
- EPSS: 0.0017
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Sep 18, 2025

## 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.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | linux Debian 12.15 (bookworm) | 6.1.4-1 | [DEBIAN-CVE-2022-50411](https://patchblox.com/security/data/fix/linux/debian-cve-2022-50411.md) | Sep 18, 2025 |
| Linux | linux Debian 13.5 (trixie) | 6.1.4-1 | [DEBIAN-CVE-2022-50411](https://patchblox.com/security/data/fix/linux/debian-cve-2022-50411.md) | Sep 18, 2025 |
| Linux | linux Debian 14 | 6.1.4-1 | [DEBIAN-CVE-2022-50411](https://patchblox.com/security/data/fix/linux/debian-cve-2022-50411.md) | Sep 18, 2025 |

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