[kronosnet/kronosnet] e4d035: [transports] fix usage after free of transport inf...

Branch: refs/heads/rekey Home: https://github.com/kronosnet/kronosnet Commit: e4d0354b39bb1083c47b741e63c7b6ba1ec119cf https://github.com/kronosnet/kronosnet/commit/e4d0354b39bb1083c47b741e63c7b… Author: Fabio M. Di Nitto <fdinitto(a)redhat.com> Date: 2019-03-24 (Sun, 24 Mar 2019) Changed paths: M libknet/transport_sctp.c M libknet/transport_udp.c Log Message: ----------- [transports] fix usage after free of transport info memory spotted while implementing functional testing for rekey. when configuring multiple hosts (3+) with 1 link sharing the same listener, but NOT enabling the link, if the user attempts to shutdown knet_h, the first call to knet_link_clear_config will not recognize that the listener is still in use by another link and will release all resources. At the time of invoking clear_config on the second link, transport_clear_config will access already freed memory, or alternatively, a call to link_enable would cause a crash because the listener does no longer exist. Signed-off-by: Fabio M. Di Nitto <fdinitto(a)redhat.com>