SB2025022760 - Use-after-free in Linux kernel nilfs2
Published: February 27, 2025 Updated: May 11, 2025
Security Bulletin ID
SB2025022760
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-2025-21722)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the nilfs_clear_dirty_pages() and nilfs_clear_folio_dirty() functions in fs/nilfs2/page.c. A local user can escalate privileges on the system.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/1098bb8d52419d262a3358d099a1598a920b730f
- https://git.kernel.org/stable/c/19296737024cd220a1d6590bf4c092bca8c99497
- https://git.kernel.org/stable/c/557ccf5e49f1fb848a29698585bcab2e50a597ef
- https://git.kernel.org/stable/c/ca76bb226bf47ff04c782cacbd299f12ddee1ec1
- 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/v5.x/ChangeLog-5.4.291
- 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