SB2025072763 - Improper locking in Linux kernel tee optee driver
Published: July 27, 2025
Security Bulletin ID
SB2025072763
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-2025-38374)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper locking within the optee_ffa_exchange_caps(), optee_ffa_remove() and optee_ffa_async_notif_init() functions in drivers/tee/optee/ffa_abi.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.