SB2025102327 - Memory leak in Linux kernel tpm eventlog driver
Published: October 23, 2025 Updated: October 26, 2025
Security Bulletin ID
SB2025102327
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-2022-50562)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to memory leak within the tpm_read_log_acpi() function in drivers/char/tpm/eventlog/acpi.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/638cd298dfebce46919cbd6cf1884701215f506d
- https://git.kernel.org/stable/c/694a3d66f493afd77c704c6de91d9be4d6e004e4
- https://git.kernel.org/stable/c/8740a12ca2e2959531ad253bac99ada338b33d80
- https://git.kernel.org/stable/c/8ddc48068ac85740d3d5f9f3b0b323e733a35b33
- https://git.kernel.org/stable/c/bf31e3f8077af539feaf4e9bbf82e8eb51e7e5a8
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.3