SB2025090841 - Use-after-free in Linux kernel qat qat_common driver
Published: September 8, 2025
Security Bulletin ID
SB2025090841
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Use-after-free (CVE-ID: CVE-2025-39721)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the adf_misc_wq_queue_delayed_work() function in drivers/crypto/intel/qat/qat_common/adf_isr.c, within the adf_dev_shutdown() function in drivers/crypto/intel/qat/qat_common/adf_init.c. A local user can escalate privileges on the system.
Remediation
Install update from vendor's website.