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."
| Software | From | Fixed in |
|---|---|---|
| linux / linux_kernel | - | 4.14.8.x |
| debian / debian_linux | 9.0 | 9.0.x |