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.
http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00022.html
https://bugzilla.kernel.org/show_bug.cgi?id=207225
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.6.7
https://github.com/torvalds/linux/commit/99e3a236dd43d06c65af0a2ef9cb44306aef6e02
https://security.netapp.com/advisory/ntap-20200608-0001/
https://usn.ubuntu.com/4387-1/
Source: MITRE
Published: 2020-05-05
Updated: 2020-06-17
Type: CWE-787
Base Score: 7.2
Vector: AV:L/AC:L/Au:N/C:C/I:C/A:C
Impact Score: 10
Exploitability Score: 3.9
Severity: HIGH
Base Score: 6.7
Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Impact Score: 5.9
Exploitability Score: 0.8
Severity: MEDIUM