In fs/ocfs2/cluster/nodemanager.c in the Linux kernel before 4.15, local users can cause a denial of service (NULL pointer dereference and BUG) because a required mutex is not used.
3.13.0-161.2114.4.0-1031.344.4.0-137.163~14.04.14.4.0-137.1634.4.0-1069.794.15.0-1013.13~16.04.24.15.0-1014.14~16.04.14.15.0-24.26~16.04.14.4.0-1035.414.4.0-1098.106Exploitability
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