EIP-2026-102635

PRE-CVE

Linux - 'page->_refcount' Overflow via FUSE

Title source: legacy
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for EIP-2026-102635. PoCs published by Google Security Research.

AI-analyzed exploit summary This exploit demonstrates a Linux kernel vulnerability (EIP-2026-125612) involving a `_refcount` overflow in `struct page` via FUSE, requiring ~140GiB RAM. It uses AIO and FUSE to create excessive page references, leading to a crash.

Description

Linux - 'page->_refcount' Overflow via FUSE

Exploits (1)

exploitdb WORKING POC VERIFIED
by Google Security Research · textdoslinux
https://www.exploit-db.com/exploits/46745

This exploit demonstrates a Linux kernel vulnerability (EIP-2026-125612) involving a `_refcount` overflow in `struct page` via FUSE, requiring ~140GiB RAM. It uses AIO and FUSE to create excessive page references, leading to a crash.

Classification
Working Poc 100%
Attack Type
Dos
Complexity
Complex
Reliability
Reliable
Target: Linux kernel 4.19.0-1-amd64 (Debian Buster)
No auth needed
Prerequisites: ~140GiB RAM · FUSE filesystem · AIO support · unprivileged user namespace creation
devstral-2 · analyzed Feb 18, 2026 Full analysis →

Details

Status pre_cve
Tracked Since Feb 18, 2026