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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2022-50870 Detail

Description

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]


Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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URL Source(s) Tag(s)
https://git.kernel.org/stable/c/06a07fbb32b3a23eec20a42b1e64474da0a3b33e kernel.org
https://git.kernel.org/stable/c/464d10e8d797454e16a173ef1292a446b2adf21c kernel.org
https://git.kernel.org/stable/c/698e682c849e356fb47a8be47ca8baa817cf31e0 kernel.org
https://git.kernel.org/stable/c/c2fa91abf22a705cf02f886cd99cff41f4ceda60 kernel.org
https://git.kernel.org/stable/c/d8939315b7342860df143afe0adda6212cdd3193 kernel.org
https://git.kernel.org/stable/c/e23822c7381c59d9e42e65771b6e17c71ed30ea7 kernel.org
https://git.kernel.org/stable/c/ed2213bfb192ab51f09f12e9b49b5d482c6493f3 kernel.org
https://git.kernel.org/stable/c/f2167f10fcca68ab9ae3f8d94d2c704c5541ac69 kernel.org

Weakness Enumeration

CWE-ID CWE Name Source

Change History

1 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2022-50870
NVD Published Date:
12/30/2025
NVD Last Modified:
12/30/2025
Source:
kernel.org