PT-2024-5777 · Linux+3 · Linux Kernel+3
Michael Walle
·
Published
2024-04-10
·
Updated
2024-11-17
·
CVE-2021-47195
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 (affected versions not specified)
Description
The issue is related to a use-after-free vulnerability in the Linux kernel's spi component, specifically with the
add lock mutex. The vulnerability occurs when the mutex unlock() function is called after the controller is already freed. This can lead to a denial of service. The vulnerability was introduced by a commit that added a per-controller mutex to fix a deadlock issue.Recommendations
At the moment, there is no information about a newer version that contains a fix for this vulnerability.
Exploit
Use After Free
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Weakness Enumeration
Related Identifiers
Affected Products
Astra Linux
Linux Kernel
Red Os
Suse