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CVE-2017-18249

Description

The add_free_nid function in fs/f2fs/node.c in the Linux kernel before 4.12 does not properly track an allocated nid, which allows local users to cause a denial of service (race condition) or possibly have unspecified other impact via concurrent threads.

POC

Reference

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

Github

No PoCs found on GitHub currently.