Incorrect calculation in Linux kernel - CVE-2026-97944
Published: September 28, 2026
Vulnerability identifier: #VU152535
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-2026-97944
CWE-ID: CWE-682
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 an incorrect hash offset calculation in cfi_get_func_hash() when the BPF JIT obtains the CFI hash for a struct_ops trampoline. A local privileged user can cause the kernel to make an indirect call into a BPF struct_ops program to cause a denial of service.
Only systems built with CONFIG_FINEIBT are affected.
Affected software
Linux kernel
How to mitigate CVE-2026-97944
Install security update from vendor's repository.
Linux kernel - update to 7.0 rc3