Multiple race conditions in the ext4 filesystem implementation in the Linux kernel before 4.5 allow local users to cause a denial of service (disk corruption) by writing to a page that is associated with a different user's file after unsynchronized hole punching and page-fault handling.
Exploitability
AV:LAC:HPR:NUI:NScope
S:UImpact
C:NI:NA:H5.1/CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H