PT-2024-11383 · Linux+2 · Linux Kernel+2
Kevin Hao
·
Published
2021-08-05
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Updated
2024-10-10
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CVE-2021-47387
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 5.14.0-rc1-next-20210715-yocto-standard+ #507
Description
A vulnerability in the Linux kernel has been resolved. The issue is related to the
cpufreq subsystem, specifically the schedutil governor. The struct sugov tunables is protected by a kobject, and attempting to free it directly would result in a call trace. To fix this, the original sugov tunables free() function has been split into two functions: sugov clear global tunables() to clear the global tunables and a new sugov tunables free() function used as kobj type::release to release the sugov tunables safely.Recommendations
To resolve the issue, update the Linux kernel to a version that includes the fix for this vulnerability. Specifically, update to a version later than 5.14.0-rc1-next-20210715-yocto-standard+ #507.
Note: The provided information does not specify the exact version that includes the fix, so it is recommended to update to the latest available version of the Linux kernel.
Fix
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Weakness Enumeration
Related Identifiers
Affected Products
Astra Linux
Linux Kernel
Suse