The NFSv4 implementation in the Linux kernel through 4.11.1 allows local users to cause a denial of service (resource consumption) by leveraging improper channel callback shutdown when unmounting an NFSv4 filesystem, aka a "module reference and kernel daemon" leak.
http://www.securityfocus.com/bid/98551
https://bugzilla.redhat.com/show_bug.cgi?id=1451386
https://github.com/torvalds/linux/commit/c70422f760c120480fee4de6c38804c72aa26bc1
Source: MITRE
Published: 2017-05-18
Updated: 2019-10-03
Type: CWE-404
Base Score: 4.9
Vector: AV:L/AC:L/Au:N/C:N/I:N/A:C
Impact Score: 6.9
Exploitability Score: 3.9
Severity: MEDIUM
Base Score: 5.5
Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Impact Score: 3.6
Exploitability Score: 1.8
Severity: MEDIUM