SB2025091940 - Memory leak in Linux kernel mm
Published: September 19, 2025 Updated: September 22, 2025
Security Bulletin ID
SB2025091940
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-2023-53391)
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 function in mm/shmem.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/1f34bf8b442c6d720e7fa6f15e8702427e48aea9
- https://git.kernel.org/stable/c/36ce9d76b0a93bae799e27e4f5ac35478c676592
- https://git.kernel.org/stable/c/487f229efea80c00dd7397547ec4f25fb8999d99
- https://git.kernel.org/stable/c/5fada375113767b3b57f1b04f7a4fe64ffaa626f
- https://git.kernel.org/stable/c/ebe07db840992a3886694ac3d303b06f4b70ce00
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.4.4