tree 3b92c50e48b4f3621638fd63b4e2b2d6fa5136cf
parent 26ae658a83eeca16780cf5615c8247cbb151c3fa
author Samuel Thibault <samuel.thibault@ens-lyon.org> 1613645998 +0100
committer Samuel Thibault <samuel.thibault@ens-lyon.org> 1613646406 +0100

ip6_output: fix memory leak on fast-send

When emitting NDP Neighbour Sollicitations, ip6_output immediately calls
if_encap without going through any queue. if_encap however does not free
the mbuf, so ip6_output has to do it.

This was leaking one mbuf per NDP NS sent by slirp. Hopefully the guest was
not using more than NDP_TABLE_SIZE (16) IPv6 addresses, in which case it was
limited to a bound number, but more addresses would result to leaks.