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CVE-2019-20096

Description

In the Linux kernel before 5.1, there is a memory leak in __feat_register_sp() in net/dccp/feat.c, which may cause denial of service, aka CID-1d3ff0950e2b.

POC

Reference

- http://packetstormsecurity.com/files/156455/Kernel-Live-Patch-Security-Notice-LSN-0063-1.html

- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.1

- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=1d3ff0950e2b40dc861b1739029649d03f591820

- https://usn.ubuntu.com/4287-2/

Github

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

- https://github.com/Live-Hack-CVE/CVE-2019-20096