SB20251230137 - Memory leak in Linux kernel char tpm driver
Published: December 30, 2025 Updated: December 31, 2025
Security Bulletin ID
SB20251230137
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-2022-50824)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to memory leak within the check_acpi_tpm2() function in drivers/char/tpm/tpm_tis.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/3b6c822238da9ee8984803355601bcc603d49cb5
- https://git.kernel.org/stable/c/43135fb098126ef2cd6ed584900fd7bfa25f95ce
- https://git.kernel.org/stable/c/8bc6c10d3f389693410adb14b4e9deec01ff6334
- https://git.kernel.org/stable/c/db9622f762104459ff87ecdf885cc42c18053fd9
- https://git.kernel.org/stable/c/de667a2704ae799f697fd45cf4317623d8c79fb7
- https://git.kernel.org/stable/c/e027f3b9fabd2b410a4e6a7651e7a45b87019f23
- https://git.kernel.org/stable/c/e0d1cf8ef84bb14a673215699fb8acc187aa2c4a
- https://git.kernel.org/stable/c/e60fa800a32a693d672b1a091424d780278c4587
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.3