EIP-2026-102637

PRE-CVE

Linux - Kernel Pointer Leak via BPF

Title source: legacy
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for EIP-2026-102637. PoCs published by Google Security Research.

AI-analyzed exploit summary This PoC exploits a BPF verifier flaw (CVE-2026-102635) allowing unprivileged users to leak kernel stack pointers via pointer subtraction between PTR_TO_STACK and PTR_TO_MAP_VALUE_OR_NULL. The code demonstrates a kernel stack pointer leak by manipulating BPF register types.

Description

Linux - Kernel Pointer Leak via BPF

Exploits (1)

exploitdb WORKING POC VERIFIED
by Google Security Research · cdoslinux
https://www.exploit-db.com/exploits/45557

This PoC exploits a BPF verifier flaw (CVE-2026-102635) allowing unprivileged users to leak kernel stack pointers via pointer subtraction between PTR_TO_STACK and PTR_TO_MAP_VALUE_OR_NULL. The code demonstrates a kernel stack pointer leak by manipulating BPF register types.

Classification
Working Poc 100%
Attack Type
Info Leak
Complexity
Moderate
Reliability
Reliable
Target: Linux kernel (v4.15 and later)
No auth needed
Prerequisites: Unprivileged user access · BPF syscall support
devstral-2 · analyzed Feb 16, 2026 Full analysis →

Details

Status pre_cve
Tracked Since Feb 18, 2026