tree 47cdb2913e775b67b53323218880164741015619
parent 2eb7b307152850bab24a5a28368236fee5ab9a44
author Amaury Denoyelle <adenoyelle@haproxy.com> 1642696982 +0100
committer Amaury Denoyelle <adenoyelle@haproxy.com> 1642774771 +0100

MINOR: quic: fix race-condition on xprt tasklet free

Remove the unsafe call to tasklet_free in quic_close. At this stage the
tasklet may already be scheduled by an other threads even after if the
quic_conn refcount is now null. It will probably cause a crash on the
next tasklet processing.

Use tasklet_kill instead to ensure that the tasklet is freed in a
thread-safe way. Note that quic_conn_io_cb is not protected by the
refcount so only the quic_conn pinned thread must kill the tasklet.