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# DP: bash43-022 upstream patch
BASH PATCH REPORT
=================
Bash-Release: 4.3
Patch-ID: bash43-022
Bug-Reported-by: scorp.dev.null@gmail.com
Bug-Reference-ID: <E1WxXw8-0007iE-Bi@pcm14>
Bug-Reference-URL: http://lists.gnu.org/archive/html/bug-bash/2014-06/msg00061.html
Bug-Description:
Using nested pipelines within loops with the `lastpipe' option set can result
in a segmentation fault.
Patch (apply with `patch -p0'):
Index: b/execute_cmd.c
===================================================================
--- a/execute_cmd.c
+++ b/execute_cmd.c
@@ -2409,7 +2409,16 @@ execute_pipeline (command, asynchronous,
#endif
lstdin = wait_for (lastpid);
#if defined (JOB_CONTROL)
- exec_result = job_exit_status (lastpipe_jid);
+ /* If wait_for removes the job from the jobs table, use result of last
+ command as pipeline's exit status as usual. The jobs list can get
+ frozen and unfrozen at inconvenient times if there are multiple pipelines
+ running simultaneously. */
+ if (INVALID_JOB (lastpipe_jid) == 0)
+ exec_result = job_exit_status (lastpipe_jid);
+ else if (pipefail_opt)
+ exec_result = exec_result | lstdin; /* XXX */
+ /* otherwise we use exec_result */
+
#endif
unfreeze_jobs_list ();
}
Index: b/patchlevel.h
===================================================================
--- a/patchlevel.h
+++ b/patchlevel.h
@@ -25,6 +25,6 @@
regexp `^#define[ ]*PATCHLEVEL', since that's what support/mkversion.sh
looks for to find the patch level (for the sccs version string). */
-#define PATCHLEVEL 21
+#define PATCHLEVEL 22
#endif /* _PATCHLEVEL_H_ */
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