PT-2022-7490 · Linux+3 · Linux Kernel+3
Chenxiaosong
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Published
2022-02-22
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Updated
2024-09-27
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CVE-2022-48931
CVSS v3.1
4.7
Medium
| Vector | AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H |
Name of the Vulnerable Software and Affected Versions
Linux kernel (affected versions not specified)
Description
The vulnerability is related to a race condition in the configfs component of the Linux kernel. When
configfs register subsystem() or configfs unregister subsystem() is executing link group() or unlink group(), it is possible that two processes add or delete list concurrently, leading to kernel panic. The issue arises from the incorrect synchronization of access to shared resources. To fix this, a mutex is added when calling link group() or unlink group(), but a special case is handled when the parent configfs subsystem is NULL for the root config item. A new mutex configfs subsystem mutex is created to address this issue.Recommendations
At the moment, there is no information about a newer version that contains a fix for this vulnerability.
Exploit
Race Condition
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Weakness Enumeration
Related Identifiers
Affected Products
Astra Linux
Linux Kernel
Red Os
Suse