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CVE-2020-12659

Description

An issue was discovered in the Linux kernel before 5.6.7. xdp_umem_reg in net/xdp/xdp_umem.c has an out-of-bounds write (by a user with the CAP_NET_ADMIN capability) because of a lack of headroom validation.

POC

Reference

- https://bugzilla.kernel.org/show_bug.cgi?id=207225

- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.6.7

- https://usn.ubuntu.com/4388-1/

Github

No PoCs found on GitHub currently.