Main
Vulnerability Database
Exploits
ID:12611 - Exploit for Always-Incorrect Control Flow Implementation in Linux kernel - CVE-2026-31413
ID:12611 - Exploit for Always-Incorrect Control Flow Implementation in Linux kernel - CVE-2026-31413
Published: April 17, 2026
Vulnerability identifier: #VU125836
Vulnerability risk: Low
CVE-ID: CVE-2026-31413
CWE-ID: CWE-670
Exploitation vector: Local access
Vulnerable software:
Linux kernel
Linux kernel
Link to public exploit:
Vulnerability description
The vulnerability allows a local user to access out-of-bounds map memory.
The vulnerability exists due to improper handling of scalar state forking in maybe_fork_scalars() when processing BPF_OR operations with a constant source operand. A local user can execute a crafted BPF program to access out-of-bounds map memory.
The issue is caused by a verifier/runtime divergence when the destination register has a signed range of [-1, 0].
Remediation
Install security update from vendor's repository.