SB20261023164 - Use-after-free in Linux kernel drm xe driver
Published: October 23, 2026
Security Bulletin ID
SB20261023164
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) Use-after-free (CVE-ID: CVE-2026-99001)
CWE-ID: CWE-416 - Use After Free
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 potentially cause a denial of service.
The vulnerability exists due to use-after-free in the Linux kernel Xe driver's I2C client work handling when device teardown overlaps queued or running work. A local user can exploit this race condition to cause the client work callback to access a released adapter or its own freed work allocation, potentially causing a kernel crash.
Remediation
Install update from vendor's website.