SB2025120832 - Memory leak in Linux kernel um drivers
Published: December 8, 2025 Updated: December 12, 2025
Security Bulletin ID
SB2025120832
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-2023-53745)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to memory leak within the vector_config() function in arch/um/drivers/vector_kern.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/276a7298af6a801e9a865282605a79303365ec66
- https://git.kernel.org/stable/c/5c49fb5ad01104acc584405572abf6616d45148e
- https://git.kernel.org/stable/c/634a9c139cc1362f6a9cc6cbfe442dbb60ff9f3f
- https://git.kernel.org/stable/c/6480c3a12755bf85d6738ab60967e89b809c701a
- https://git.kernel.org/stable/c/8f88c73afe481f93d40801596927e8c0047b6d96
- https://git.kernel.org/stable/c/c8583b4655aab44a9796b5c4a681ddcc6fe2f0d0
- https://git.kernel.org/stable/c/f2b9c4544e3bd60f353732291300097b0e8d8454
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.173