Always-Incorrect Control Flow Implementation in Linux kernel - CVE-2026-93135
Published: September 18, 2026
Vulnerability identifier: #VU150868
CSH Severity: Low
CVSS v4: 5.7 [CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-93135
CWE-ID: CWE-670
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local user to cause a denial of service.
The vulnerability exists due to improper helper-call offset handling in bpf_do_misc_fixups() when the BPF interpreter executes a program whose helper calls were expected to be inlined by JIT compilation. A local user can execute a BPF program containing such helper calls to cause a denial of service.
JIT compilation must be unavailable at runtime, such as when it is disabled or when dynamic JIT compilation fails.
Affected software
Linux kernel
How to mitigate CVE-2026-93135
Install security update from vendor's repository.