kernel/bpf/verifier.c in the Linux kernel 4.9.x through 4.9.71 does not check the relationship between pointer values and the BPF stack, which allows local users to cause a denial of service (integer overflow or invalid memory access) or possibly have unspecified other impact.
http://www.securityfocus.com/bid/102321
http://www.securitytracker.com/id/1040058
https://usn.ubuntu.com/3523-3/
https://usn.ubuntu.com/usn/usn-3523-2/
Source: MITRE
Published: 2017-12-27
Updated: 2018-03-16
Type: CWE-190
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: 7.8
Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Impact Score: 5.9
Exploitability Score: 1.8
Severity: HIGH