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CVE-2018-14611

Description

An issue was discovered in the Linux kernel through 4.17.10. There is a use-after-free in try_merge_free_space() when mounting a crafted btrfs image, because of a lack of chunk type flag checks in btrfs_check_chunk_valid in fs/btrfs/volumes.c.

POC

Reference

- https://usn.ubuntu.com/3932-1/

- https://usn.ubuntu.com/4118-1/

Github

No PoCs found on GitHub currently.