NULL pointer dereference in Linux kernel - CVE-2026-89807
Published: September 17, 2026
Vulnerability identifier: #VU150483
CSH Severity: Low
CVSS v4: 6.7 [CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-89807
CWE-ID: CWE-476
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local privileged user to cause a denial of service.
The vulnerability exists due to a NULL pointer dereference in the AMD KFD device queue manager when restoring a CRIU queue through KFD_IOC_CRIU_OP_RESTORE. A local privileged user can issue the ioctl with a crafted queue restore object to cause a denial of service.
Exploitation is limited to queue types for which the restore_mqd callback is not implemented.
Affected software
Linux kernel
How to mitigate CVE-2026-89807
Install security update from vendor's repository.