CVE-2024-44947

EIP tracks 1 public exploit for CVE-2024-44947. PoCs published by Abdurahmon3236.

AI-analyzed exploit summary This repository contains a functional PoC for CVE-2024-44947, demonstrating an information leak in the Linux kernel's FUSE module by triggering uninitialized memory exposure via mmap. The PoC includes advanced features like heuristic analysis and expanded memory dumps.

In the Linux kernel, the following vulnerability has been resolved: fuse: Initialize beyond-EOF page contents before setting uptodate fuse_notify_store(), unlike fuse_do_readpage(), does not enable page zeroing (because it can be used to change partial page contents). So fuse_notify_store() must be more careful to fully initialize page contents (including parts of the page that are beyond end-of-file) before marking the page uptodate. The current code can leave beyond-EOF page contents uninitialized, which makes these uninitialized page contents visible to userspace via mmap(). This is an information leak, but only affects systems which do not enable init-on-alloc (via CONFIG_INIT_ON_ALLOC_DEFAULT_ON=y or the corresponding kernel command line parameter).