PT-2025-14293 · Linux+7 · Linux Kernel+7
Published
2025-01-21
·
Updated
2026-04-20
·
CVE-2025-21912
CVSS v3.1
5.5
Medium
| Vector | AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
Name of the Vulnerable Software and Affected Versions
Linux kernel versions prior to the fixed version
Description
The issue is related to the use of spinlocks in the Linux kernel, specifically in the gpio rcar config interrupt input mode function. The problem arises when spinlock debugging is enabled, resulting in spurious messages about invalid context. The estimated number of potentially affected devices worldwide is not provided. There is no information about real-world incidents where this issue was exploited.
Technical details about exploitation include the use of
raw spinlock to protect register access. The gpio rcar config interrupt input mode function is involved, and the issue is related to the serialization of register access.Recommendations
To resolve the issue, update to a version of the Linux kernel that includes the fix for this problem.
As a temporary workaround, consider disabling the
gpio rcar config interrupt input mode function until a patch is available.Exploit
Fix
Improper Locking
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Weakness Enumeration
Related Identifiers
Affected Products
Alt Linux
Astra Linux
Debian
Linuxmint
Linux Kernel
Red Os
Suse
Ubuntu