SB2025050235 - Memory leak in Linux kernel bpf
Published: May 2, 2025 Updated: May 10, 2025
Security Bulletin ID
SB2025050235
CSH 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 vulnerability.
1) Memory leak (CVE-ID: CVE-2022-49878)
CWE-ID: CWE-401 - Missing release of memory after effective lifetime
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to memory leak within the realloc_array() function in kernel/bpf/verifier.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/06615967d4889b08b19ff3dda96e8b131282f73d
- https://git.kernel.org/stable/c/3e210891c4a4c2d858cd6f9f61d5809af251d4df
- https://git.kernel.org/stable/c/42378a9ca55347102bbf86708776061d8fe3ece2
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.79
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.0.9
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1