SB2025012067 - Resource management error in Linux kernel afs
Published: January 20, 2025 Updated: May 11, 2025
Security Bulletin ID
SB2025012067
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Resource management error (CVE-ID: CVE-2025-21646)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to resource management error within the afs_deliver_yfsvl_get_cell_name() function in fs/afs/vlclient.c, within the afs_vl_get_cell_name() and yfs_check_canonical_cell_name() functions in fs/afs/vl_alias.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/7673030efe0f8ca1056d3849d61784c6caa052af
- https://git.kernel.org/stable/c/7922b1f058fe24a93730511dd0ae2e1630920096
- https://git.kernel.org/stable/c/8fd56ad6e7c90ac2bddb0741c6b248c8c5d56ac8
- https://git.kernel.org/stable/c/aabe47cf5ac5e1db2ae0635f189d836f67024904
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.125