CVE-2022-50411
ACPICA: Fix error code path in acpi_ds_call_control_method()
- Published
- Updated
- Reserved
- Assigned by
- Linux
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.
Timeline
ID reserved
By Linux
- 1 day later
· 1 day later
Published
- 11 months later
· 11 months later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| LinuxCNA (assigner) | 3.1 | High7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| CISA-ADPADP (enrichment) | 3.1 | High7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| NVDNVD · Modified | 3.1 | High7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 0.17% · top 94% of all CVEs (8 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: total
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.8.
Weakness
Affected products
- affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 – < 38e251d356a01b61a86cb35213cafd7e8fe7090c
- affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 – < f520d181477ec29a496c0b3bbfbdb7e2606c2713
- affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 – < 2deb42c4f9776e59bee247c14af9c5e8c05ca9a6
- affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 – < 9ef353c92f9d04c88de3af1a46859c1fb76db0f8
- affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 – < b0b83d3f3ffa96e8395c56b83d6197e184902a34
- affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 – < 5777432ebaaf797e24f059979b42df3139967163
- affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 – < 0462fec709d51762ba486245bc344f44cc6cfa97
- affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 – < 799881db3e03b5e98fe6a900d9d7de8c7d61e7ee
- affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 – < 404ec60438add1afadaffaed34bb5fe4ddcadd40
- affected 2.6.12
- unaffected < 2.6.12
- unaffected 4.9.337 – ≤ 4.9.*
- unaffected 4.14.303 – ≤ 4.14.*
- unaffected 4.19.270 – ≤ 4.19.*
- unaffected 5.4.229 – ≤ 5.4.*
- unaffected 5.10.163 – ≤ 5.10.*
- unaffected 5.15.86 – ≤ 5.15.*
- unaffected 6.0.16 – ≤ 6.0.*
- unaffected 6.1.2 – ≤ 6.1.*
- unaffected 6.2 – ≤ *
References (9)
- https://git.kernel.org/stable/c/38e251d356a01b61a86cb35213cafd7e8fe7090c (opens in a new tab)
- https://git.kernel.org/stable/c/f520d181477ec29a496c0b3bbfbdb7e2606c2713 (opens in a new tab)
- https://git.kernel.org/stable/c/2deb42c4f9776e59bee247c14af9c5e8c05ca9a6 (opens in a new tab)
- https://git.kernel.org/stable/c/9ef353c92f9d04c88de3af1a46859c1fb76db0f8 (opens in a new tab)
- https://git.kernel.org/stable/c/b0b83d3f3ffa96e8395c56b83d6197e184902a34 (opens in a new tab)
- https://git.kernel.org/stable/c/5777432ebaaf797e24f059979b42df3139967163 (opens in a new tab)
- https://git.kernel.org/stable/c/0462fec709d51762ba486245bc344f44cc6cfa97 (opens in a new tab)
- https://git.kernel.org/stable/c/799881db3e03b5e98fe6a900d9d7de8c7d61e7ee (opens in a new tab)
- https://git.kernel.org/stable/c/404ec60438add1afadaffaed34bb5fe4ddcadd40 (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2022-50411)Record last updated .