The madvise_willneed function in mm/madvise.c in the Linux kernel before 4.14.4 allows local users to cause a denial of service (infinite loop) by triggering use of MADVISE_WILLNEED for a DAX mapping.
3.13.0-149.1994.4.0-1016.164.4.0-119.143~14.04.14.4.0-119.1434.4.0-1054.634.13.0-1018.214.13.0-1017.214.13.0-43.48~16.04.14.4.0-1020.254.13.0-1028.31Exploitability
AV:LAC:LPR:LUI:NScope
S:UImpact
C:NI:NA:HCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H