The snd_msnd_interrupt function in sound/isa/msnd/msnd_pinnacle.c in the Linux kernel through 4.11.7 allows local users to cause a denial of service (over-boundary access) or possibly have unspecified other impact by changing the value of a message queue head pointer between two kernel reads of that value, aka a "double fetch" vulnerability.
http://www.securityfocus.com/bid/99314
https://bugzilla.kernel.org/show_bug.cgi?id=196131
https://github.com/torvalds/linux/commit/20e2b791796bd68816fa115f12be5320de2b8021
Source: MITRE
Published: 2017-06-28
Updated: 2018-08-24
Type: CWE-125
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