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CVE-2021-20219

Description

A denial of service vulnerability was found in n_tty_receive_char_special in drivers/tty/n_tty.c of the Linux kernel. In this flaw a local attacker with a normal user privilege could delay the loop (due to a changing ldata->read_head, and a missing sanity check) and cause a threat to the system availability.

POC

Reference

No PoCs from references.

Github

- https://github.com/ARPSyndicate/cvemon