CVE-2022-50411
CVE-2022-50411 is a high-severity vulnerability in Linux Linux Kernel with a CVSS 3.x base score of 7.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-416.
Key facts
- Severity: High (CVSS 3.x base score 7.8)
- EPSS exploit prediction: 0% (5th percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2025-29885
- Weakness: CWE-416
- Affected product: Linux Linux Kernel
- Published:
- Last modified:
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.
Frequently asked questions
- What is CVE-2022-50411?
- 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.
- How severe is CVE-2022-50411?
- CVE-2022-50411 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2022-50411 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (5th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2022-50411?
- CVE-2022-50411 affects Linux Linux Kernel. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2022-50411?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- Does CVE-2022-50411 have an EU (EUVD) identifier?
- Yes. CVE-2022-50411 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-29885.
- When was CVE-2022-50411 published?
- CVE-2022-50411 was published on 2025-09-18 and last updated on 2026-06-17.
References
- https://git.kernel.org/stable/c/0462fec709d51762ba486245bc344f44cc6cfa97
- https://git.kernel.org/stable/c/2deb42c4f9776e59bee247c14af9c5e8c05ca9a6
- https://git.kernel.org/stable/c/38e251d356a01b61a86cb35213cafd7e8fe7090c
- https://git.kernel.org/stable/c/404ec60438add1afadaffaed34bb5fe4ddcadd40
- https://git.kernel.org/stable/c/5777432ebaaf797e24f059979b42df3139967163
- https://git.kernel.org/stable/c/799881db3e03b5e98fe6a900d9d7de8c7d61e7ee
- https://git.kernel.org/stable/c/9ef353c92f9d04c88de3af1a46859c1fb76db0f8
- https://git.kernel.org/stable/c/b0b83d3f3ffa96e8395c56b83d6197e184902a34
- https://git.kernel.org/stable/c/f520d181477ec29a496c0b3bbfbdb7e2606c2713
Affected products (1)
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
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