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If a script times out the caller can talloc_free() the script_list output of run_event_recv, which talloc_free's proc->output from run_proc.c as well. If the script generates further output after the timeout and then exits after a while, the SIGCHLD handler in the eventd tries to read into proc->output, which was already free'ed. Fix this by not doing just a talloc_steal but a talloc_move. This way proc_read_handler() called from run_proc_signal_handler() does not try to realloc the stale reference to proc->output but gets a NULL reference. I don't really know how to do a knownfail in ctdb, so this commit actually activates catching the signal by waiting long enough for 22.bar to exit and generate the SIGCHLD. Bug: https://bugzilla.samba.org/show_bug.cgi?id=14475 Signed-off-by: Volker Lendecke <vl@samba.org> Reviewed-by: Ralph Boehme <slow@samba.org> (cherry picked from commit adef87a621b17baf746d12f991c60a8a3ffcfcd3) Autobuild-User(v4-14-test): Karolin Seeger <kseeger@samba.org> Autobuild-Date(v4-14-test): Tue May 25 09:51:20 UTC 2021 on sn-devel-184
This is the release version of CTDB, a clustered implementation of TDB database used by Samba and other projects to store temporary data. This software is freely distributable under the GNU public license, a copy of which you should have received with this software (in a file called COPYING). For documentation on CTDB, please visit CTDB website http://ctdb.samba.org.