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🛡️ CVE-2022-50870 — kernel

⚪ Unknown ✅ No Known Exploit NVD
N/A
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

powerpc/rtas: avoid device tree lookups in rtas_os_term()

In the Linux kernel, the following vulnerability has been resolved:

powerpc/rtas: avoid device tree lookups in rtas_os_term()

rtas_os_term() is called during panic. Its behavior depends on a couple

of conditions in the /rtas node of the device tree, the traversal of

which entails locking and local IRQ state changes. If the kernel panics

while devtree_lock is held, rtas_os_term() as currently written could

hang.

Instead of discovering the relevant characteristics at panic time,

cache them in file-static variables at boot. Note the lookup for

"ibm,extended-os-term" is converted to of_property_read_bool() since it

is a boolean property, not an RTAS function token.

[mpe: Incorporate suggested change from Nick]

Affected software

CVE-2022-50870 is recorded against 2 packages.

  • kernel (from 6.1.0 up to 6.1.3)
  • unknown

Timeline and source

Published on 30 December 2025 and last revised on 12 August 2026. No public exploit is currently recorded for this entry. Record sourced from NVD.

References

git.kernel.org (Web)
git.kernel.org (Web)
git.kernel.org (Web)
git.kernel.org (Web)
git.kernel.org (Web)
git.kernel.org (Web)
git.kernel.org (Web)
git.kernel.org (Web)
github.com (Advisory)
nvd.nist.gov (Advisory)
git.kernel.org (Package)

Other advisories for this package

kernel has other advisories on record. If you are patching this one, these are worth checking on the same host:

CVE-2022-50870 on other distributions

Each distribution ships its own build and its own fixed version. Pick the one you run:

Details

Severity Unknown
CVSS Score N/A
CVSS Vector N/A
CWE N/A
Public Exploit ✅ No
Source NVD
Published 2025-12-30
Updated 2026-08-20
Modified 2026-08-12
Fix URL N/A

Affected Packages

Software From version Fixed in
kernel 6.1.0 6.1.3
unknown — —

References

Similar Threats

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ⓘ Data Notice: The information presented above has been compiled from publicly available internet sources. Boteraser aggregates this data solely for informational purposes and does not independently classify, evaluate, or endorse any findings about the vulnerabilities listed. The accuracy and completeness of this information is the sole responsibility of the original publishers. Boteraser and its operators accept no liability for any decisions made based on this data.

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