What were you trying to do that didn't work?

We are experiencing the following crashes in our squid server.

FATAL: check failed: transportWait
    exception location: tunnel.cc(1299) noteDestinationsEnd

Upstream has already fixed this issue with this commit and released it in squid-5.7.

https://github.com/squid-cache/squid/commit/c99962131fd6dab24be8d6d5eaef8131ae41c9b5

Please backport this commit.

Please provide the package NVR for which bug is seen:

squid-5.5-13.el9

How reproducible:

Unknown. Happened twice in a year.

See upstream bug.

https://bugs.squid-cache.org/show_bug.cgi?id=5186

Expected results

squid does not crash randomly.

Actual results

squid crashes.