bash: update to 4.4.12

2017-09-30 15:12:22 +02:00
parent 47e66e823e
commit 0c2b1093ec
15 changed files with 1007 additions and 45 deletions
--- a/bash/src/bash44-004
+++ b/bash/src/bash44-004
@@ -0,0 +1,84 @@
+			     BASH PATCH REPORT
+			     =================
+
+Bash-Release:	4.4
+Patch-ID:	bash44-004
+
+Bug-Reported-by:	Christian Weisgerber <naddy@mips.inka.de>
+Bug-Reference-ID:	<20161101160302.GB54856@lorvorc.mips.inka.de>
+Bug-Reference-URL:	http://lists.gnu.org/archive/html/bug-bash/2016-11/msg00004.html
+
+Bug-Description:
+
+There is a race condition that can result in bash referencing freed memory
+when freeing data associated with the last process substitution.
+
+Patch (apply with `patch -p0'):
+
+*** ../bash-4.4/jobs.c	2016-08-23 16:38:44.000000000 -0400
+--- jobs.c	2016-11-02 18:24:45.000000000 -0400
+***************
+*** 454,457 ****
+--- 454,472 ----
+  }
+  
+ void
+ discard_last_procsub_child ()
+ {
+   PROCESS *disposer;
+   sigset_t set, oset;
+ 
+   BLOCK_CHILD (set, oset);
+   disposer = last_procsub_child;
+   last_procsub_child = (PROCESS *)NULL;
+   UNBLOCK_CHILD (oset);
+ 
+   if (disposer)
+     discard_pipeline (disposer);
+ }
+ 
+  struct pipeline_saver *
+  alloc_pipeline_saver ()
+*** ../bash-4.4/jobs.h	2016-04-27 10:35:51.000000000 -0400
+--- jobs.h	2016-11-02 18:25:08.000000000 -0400
+***************
+*** 191,194 ****
+--- 191,195 ----
+  extern void stop_making_children __P((void));
+  extern void cleanup_the_pipeline __P((void));
+ extern void discard_last_procsub_child __P((void));
+  extern void save_pipeline __P((int));
+  extern PROCESS *restore_pipeline __P((int));
+*** ../bash-4.4/subst.c	2016-08-30 16:46:38.000000000 -0400
+--- subst.c	2016-11-02 18:23:24.000000000 -0400
+***************
+*** 5809,5816 ****
+  #if defined (JOB_CONTROL)
+        if (last_procsub_child)
+! 	{
+! 	  discard_pipeline (last_procsub_child);
+! 	  last_procsub_child = (PROCESS *)NULL;
+! 	}
+        last_procsub_child = restore_pipeline (0);
+  #endif
+--- 5834,5838 ----
+  #if defined (JOB_CONTROL)
+        if (last_procsub_child)
+! 	discard_last_procsub_child ();
+        last_procsub_child = restore_pipeline (0);
+  #endif
+*** ../bash-4.4/patchlevel.h	2016-06-22 14:51:03.000000000 -0400
+--- patchlevel.h	2016-10-01 11:01:28.000000000 -0400
+***************
+*** 26,30 ****
+     looks for to find the patch level (for the sccs version string). */
+  
+! #define PATCHLEVEL 3
+  
+  #endif /* _PATCHLEVEL_H_ */
+--- 26,30 ----
+     looks for to find the patch level (for the sccs version string). */
+  
+! #define PATCHLEVEL 4
+  
+  #endif /* _PATCHLEVEL_H_ */