Integer overflow in Linux kernel - CVE-2026-89592
Published: September 12, 2026
Vulnerability identifier: #VU149219
CSH Severity: Low
CVSS v4: 4.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-89592
CWE-ID: CWE-190
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local user to cause out-of-bounds accesses.
The vulnerability exists due to an integer overflow in rocket_job_push() when summing user-supplied input and output GEM object handle counts. A local user can submit a job with handle counts whose sum wraps around to cause out-of-bounds accesses.
Affected software
Linux kernel
How to mitigate CVE-2026-89592
Install security update from vendor's repository.