SB2026091855 - Expired pointer dereference in Linux kernel qat qat_common driver
Published: September 18, 2026
Security Bulletin ID
SB2026091855
CSH 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 vulnerability.
1) Expired pointer dereference (CVE-ID: CVE-2026-93162)
CWE-ID: CWE-825 - Expired pointer dereference
CVSSv4: 5.7 [CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
The vulnerability allows a local user to cause memory corruption.
The vulnerability exists due to an expired pointer dereference in the QAT reset worker when an SR-IOV reenable completion wait times out. A local user can trigger a QAT device reset that reaches the timeout to cause memory corruption.
Remediation
Install update from vendor's website.