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PATCH: vi history search crashes

X-seq: zsh-workers 23813
From: Clint Adams <clint@xxxxxxx>
To: zsh-workers@xxxxxxxxxx
Subject: PATCH: vi history search crashes
Date: Thu, 13 Sep 2007 05:55:58 -0400
Mail-followup-to: zsh-workers@xxxxxxxxxx
Mailing-list: contact zsh-workers-help@xxxxxxxxxx; run by ezmlm

I think some people are experiencing segfaults doing history searches
in vi mode because of a double free().  On the other hand, I have a
massive headache.

Index: Src/Zle/zle_hist.c
===================================================================
RCS file: /cvsroot/zsh/zsh/Src/Zle/zle_hist.c,v
retrieving revision 1.36
diff -u -r1.36 zle_hist.c
--- Src/Zle/zle_hist.c	10 Sep 2006 18:10:49 -0000	1.36
+++ Src/Zle/zle_hist.c	13 Sep 2007 09:53:52 -0000
@@ -1240,6 +1240,7 @@
 
     if (vipenultsrchstr) {
 	zsfree(vipenultsrchstr);
+	vipenultsrchstr = NULL;
     }
 
     if (visrchstr) {

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