The xfs_bmap_extents_to_btree function in fs/xfs/libxfs/xfs_bmap.c in the Linux kernel through 4.16.3 allows local users to cause a denial of service (xfs_bmapi_write NULL pointer dereference) via a crafted xfs image.
3.13.0-157.2074.4.0-189.2194.4.0-1113.1264.15.0-1022.22~16.04.14.15.0-1018.19~16.04.24.15.0-33.36~16.04.14.4.0-1079.864.4.0-1138.1474.4.0-1142.1514.15.0-33.36Exploitability
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