SB2025091642 - Memory leak in Linux kernel watchdog driver
Published: September 16, 2025 Updated: September 22, 2025
Security Bulletin ID
SB2025091642
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-2023-53234)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to memory leak within the watchdog_cdev_register() function in drivers/watchdog/watchdog_dev.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/13721a2ac66b246f5802ba1b75ad8637e53eeecc
- https://git.kernel.org/stable/c/23cc41c3f19c4d858c3708f1c0a06e94958e6c3b
- https://git.kernel.org/stable/c/50808d034e199fe3ff7a9d2068a4eebeb6b4098a
- https://git.kernel.org/stable/c/59e391b3fc507a15b7e8e9d9f4de87cae177c366
- https://git.kernel.org/stable/c/8c1655600f4f2839fb844fe8c70b2b65fadc7a56
- https://git.kernel.org/stable/c/ac099d94e0480c937aa9172ab64074981ca1a4d3
- https://git.kernel.org/stable/c/bf26b0e430ce34261f45959989edaf680b64d538
- https://git.kernel.org/stable/c/c5a21a5501508ae3afa2fe6d5a3e74a37fa48df3
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.173