SB2025061943 - Memory leak in Linux kernel apparmor
Published: June 19, 2025 Updated: June 21, 2025
Security Bulletin ID
SB2025061943
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-2022-50077)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to memory leak within the aa_pivotroot() function in security/apparmor/mount.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/11c3627ec6b56c1525013f336f41b79a983b4d46
- https://git.kernel.org/stable/c/2ceeb3296e9dde1d5772348046affcefdea605e2
- https://git.kernel.org/stable/c/3ca40ad7afae144169a43988ef1a3f16182faf0a
- https://git.kernel.org/stable/c/64103ea357734b82384c925cba4758fdb909be0c
- https://git.kernel.org/stable/c/d53194707d2a1851be027cd74266b96ceff799d3
- https://git.kernel.org/stable/c/ef6fb6f0d0d8440595b45a7e53c6162c737177f4
- https://git.kernel.org/stable/c/f4d5c7796571624e3f380b447ada52834270a287
- https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.256