BUG: stktable: tcp_src_to_stktable_key() must return NULL on invalid families

Source addresses of non-TCP families were not correctly handled by
tcp_src_to_stktable_key() as it forgot to return NULL and instead left
the previous value in the stick-table buffer.

This bug is 1.5-specific and was introduced by commit 4f92d320 in 1.5-dev6
so it does not need any backport.
1 file changed