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Volker Lendecke adef87a621 ctdb: Fix a crash in run_proc_signal_handler() 
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>
2021-05-18 10:42:32 +00:00
..
client ctdb-client: Drop unused synchronous functions for database pull/push 2020-09-11 05:06:42 +00:00
cluster ctdb-cluster: CID 1435726: NULL pointer dereference 2019-06-05 10:25:50 +00:00
common ctdb: Fix a crash in run_proc_signal_handler() 2021-05-18 10:42:32 +00:00
config ctdb-scripts: Use nfsconf as a last resort get nfsd thread count 2020-07-27 07:06:57 +00:00
database ctdb-database: Fix signed/unsigned comparison by casting 2019-07-05 05:03:24 +00:00
doc ctdb/doc: mention ctdb_mutex_ceph_rados_helper mgr registration 2020-09-23 23:29:41 +00:00
event ctdb-common: Add section to group commands in cmdline 2019-11-14 10:38:34 +00:00
failover ctdb-failover: Add failover configuration options 2018-08-24 10:59:21 +02:00
ib ctdb-daemon: Rename ctdb_context private_data to transport_data 2019-11-14 02:20:46 +00:00
include ctdb-daemon: Drop implementation of old-style database pull/push controls 2020-09-11 06:29:32 +00:00
packaging/RPM ctdb-packaging: Test package requires tcpdump 2019-03-15 05:17:14 +00:00
protocol ctdb-daemon: Drop implementation of old-style database pull/push controls 2020-09-11 06:29:32 +00:00
server ctdb: Fix a typo 2021-03-09 22:36:28 +00:00
tcp ctdb-tcp: Do not stop outbound connection in ctdb_tcp_node_connect() 2020-03-12 05:29:20 +00:00
tests ctdb: Fix a crash in run_proc_signal_handler() 2021-05-18 10:42:32 +00:00
tools ctdb: Use hex_byte() in hex_to_data() 2021-01-08 20:31:33 +00:00
utils ctdb/test_ceph_rados_reclock: check for service registration 2020-09-24 00:52:42 +00:00
.bzrignore
.gitignore ctdb-build: use a fixed ctdb_version.h using SAMBA_VERSION_STRING 2019-03-15 05:17:14 +00:00
configure build: Move python detection back into waf (instead of in configure and Makefile) 2018-12-14 14:40:19 +01:00
configure.rpm ctdb-packaging: Update library versions to upstream versions 2018-12-18 07:12:09 +01:00
COPYING add a licence file 2009-02-07 08:10:34 +11:00
Makefile build: Move python detection back into waf (instead of in configure and Makefile) 2018-12-14 14:40:19 +01:00
README doc: README - add information about CTDB, license and website 2012-10-22 17:39:49 +11:00
wscript ctdb: Prevent man page duplication 2020-09-11 03:43:40 +00:00

README 

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.