SB2024112053 - Improper locking in Linux kernel char tpm driver
Published: November 20, 2024 Updated: May 12, 2025
Security Bulletin ID
SB2024112053
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) Improper locking (CVE-ID: CVE-2024-53085)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper locking within the tpm_pm_suspend() and tpm_get_random() functions in drivers/char/tpm/tpm-interface.c, within the tpm_hwrng_read() function in drivers/char/tpm/tpm-chip.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/bc203fe416abdd1c29da594565a7c3c4e979488e
- https://git.kernel.org/stable/c/9265fed6db601ee2ec47577815387458ef4f047a
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.11.8
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.12
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.6.64