SB20260912183 - Off-by-one in Linux kernel ethernet nvidia driver
Published: September 12, 2026
Security Bulletin ID
SB20260912183
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) Off-by-one (CVE-ID: CVE-2026-89596)
CWE-ID: CWE-193 - Off-by-one Error
CVSSv4: 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]
The vulnerability allows a local user to cause a denial of service.
The vulnerability exists due to an off-by-one error in the forcedeth driver's nv_suspend() and nv_resume() functions when suspending or resuming the system. A local user can trigger a system suspend and resume cycle to cause a denial of service.
On systems built with CONFIG_UBSAN_TRAP=y, the out-of-bounds access aborts the running kernel code.
Remediation
Install update from vendor's website.