SB20251230121 - Memory leak in Linux kernel apparmor
Published: December 30, 2025 Updated: December 31, 2025
Security Bulletin ID
SB20251230121
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) Memory leak (CVE-ID: CVE-2022-50860)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to memory leak within the alloc_ns() function in security/apparmor/policy_ns.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/0250cf8d37bb5201a117177afd24dc73a1c81657
- https://git.kernel.org/stable/c/12695b4b76d437b9c0182a6f7dfb2248013a9daf
- https://git.kernel.org/stable/c/5f509fa740b17307f0cba412485072f632d5af36
- https://git.kernel.org/stable/c/9a32aa87a25d800b2c6f47bc2749a7bfd9a486f3
- https://git.kernel.org/stable/c/e9e6fa49dbab6d84c676666f3fe7d360497fd65b
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.163
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.86
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.0.16
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.2
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.2