SB2025091936 - Memory leak in Linux kernel time
Published: September 19, 2025 Updated: September 22, 2025
Security Bulletin ID
SB2025091936
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-2023-53403)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to memory leak within the module_init() function in kernel/time/test_udelay.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/15cffd01ed80e3506e29ba9f441e2358413b7317
- https://git.kernel.org/stable/c/5b268d8abaec6cbd4bd70d062e769098d96670aa
- https://git.kernel.org/stable/c/b588b42d077ce93c98704b41003bcec6a564b738
- https://git.kernel.org/stable/c/dc39fbd865a9819db4b622f610ba17b2ebc294f4
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.99