NULL pointer dereference in Linux kernel - CVE-2026-98875
Published: October 24, 2026
Vulnerability identifier: #VU157639
CSH Severity: Low
CVSS v4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-98875
CWE-ID: CWE-476
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local user to potentially cause a denial of service by triggering a crash during GPU initialization.
The vulnerability exists due to a null pointer dereference in the Linux kernel Nouveau driver's GA100 initialization when booting GSP-RM. A local user can potentially trigger the affected initialization path to cause a denial of service because the booter constructor in tu102_gsp_oneinit() accesses device->sec2 even though the missing SEC2 chip-table entry leaves that pointer null.
Affected software
Linux kernel
How to mitigate CVE-2026-98875
Install security update from vendor's repository.
Linux kernel - update to 7.0 rc3