kernel/bpf/verifier.c in the Linux kernel through 4.14.8 mishandles states_equal comparisons between the pointer data type and the UNKNOWN_VALUE data type, which allows local users to obtain potentially sensitive address information, aka a "pointer leak."
Exploitability
AV:LAC:LPR:LUI:NScope
S:UImpact
C:LI:NA:N3.3/CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N