fs/btrfs/inode.c in the Linux kernel before 4.3.3 mishandles compressed inline extents, which allows local users to obtain sensitive pre-truncation information from a file via a clone action.
3.13.0-77.1213.16.0-60.80~14.04.13.19.0-49.55~14.04.14.2.0-27.32~14.04.1Exploitability
AV:LAC:LPR:NUI:NScope
S:UImpact
C:LI:NA:NCVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N