ASAN found a stack buffer overflow in lib/rib/rte_rib6.c:get_dir.
The fix for the stack buffer overflow was to make sure depth
was always < 128, since when depth = 128 it caused the index
into the ip address to be 16, which read off the end of the array.
While trying to solve the buffer overflow, I noticed that a few
changes could be made to remove the for loop entirely.
Fixes: f7e861e21c ("rib: support IPv6")
Cc: stable@dpdk.org
Signed-off-by: Owen Hilyard <ohilyard@iol.unh.edu>
Acked-by: Vladimir Medvedkin <vladimir.medvedkin@intel.com>
03b8372a9a