SB2025022759 - Use-after-free in Linux kernel
Published: February 27, 2025 Updated: May 11, 2025
Security Bulletin ID
SB2025022759
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Use-after-free (CVE-ID: CVE-2025-21726)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the padata_reorder() and invoke_padata_reorder() functions in kernel/padata.c. A local user can escalate privileges on the system.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/6f45ef616775b0ce7889b0f6077fc8d681ab30bc
- https://git.kernel.org/stable/c/7000507bb0d2ceb545c0a690e0c707c897d102c2
- https://git.kernel.org/stable/c/8ca38d0ca8c3d30dd18d311f1a7ec5cb56972cac
- https://git.kernel.org/stable/c/a54091c24220a4cd847d5b4f36d678edacddbaf0
- https://git.kernel.org/stable/c/dd7d37ccf6b11f3d95e797ebe4e9e886d0332600
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.235
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.179
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.129
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.12.13
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.13.2
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.14
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.6.76