In the Linux kernel before 4.17, a local attacker able to set attributes on an xfs filesystem could make this filesystem non-operational until the next mount by triggering an unchecked error condition during an xfs attribute change, because xfs_attr_shortform_addname in fs/xfs/libxfs/xfs_attr.c mishandles ATTR_REPLACE operations with conversion of an attr from short to long form.
3.13.0-164.2144.4.0-1037.404.15.0-1036.38~14.04.24.4.0-141.167~14.04.14.4.0-141.1674.4.0-1074.844.15.0-1036.38~16.04.14.15.0-1026.27~16.04.14.15.0-43.46~16.04.14.4.0-1039.45Exploitability
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