SB2025092219 - NULL pointer dereference in Linux kernel tee driver
Published: September 22, 2025
Security Bulletin ID
SB2025092219
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) NULL pointer dereference (CVE-ID: CVE-2025-39865)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to NULL pointer dereference within the EXPORT_SYMBOL_GPL() function in drivers/tee/tee_shm.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/25e315bc8ad363bd1194e49062f183ad4011957e
- https://git.kernel.org/stable/c/4377eac565c297fdfccd2f8e9bf94ee84ff6172f
- https://git.kernel.org/stable/c/5e07a4235bb85d9ef664411e4ff4ac34783c18ff
- https://git.kernel.org/stable/c/963fca19fe34c496e04f7dd133b807b76a5434ca
- https://git.kernel.org/stable/c/add1ecc8f3ad8df22e3599c5c88d7907cc2a3079
- https://git.kernel.org/stable/c/e4a718a3a47e89805c3be9d46a84de1949a98d5d
- https://git.kernel.org/stable/c/f266188603c34e6e234fb0dfc3185f0ba98d71b7