From: Sean <seanlkml@sympatico.ca>
Date: Tue, 23 May 2006 00:36:34 +0000 (-0400)
Subject: Avoid segfault in diff --stat rename output.
X-Git-Tag: v1.4.0-rc1~97
X-Git-Url: https://git.verplant.org/?a=commitdiff_plain;h=e3008464e70d25b4926b97b1f86951d7a3cb938d;p=git.git

Avoid segfault in diff --stat rename output.

Signed-off-by: Sean Estabrooks <seanlkml@sympatico.ca>
Signed-off-by: Junio C Hamano <junkio@cox.net>
---

diff --git a/diff.c b/diff.c
index 16017836..3a2a175c 100644
--- a/diff.c
+++ b/diff.c
@@ -237,7 +237,7 @@ static char *pprint_rename(const char *a, const char *b)
 		if (a_midlen < 0) a_midlen = 0;
 		if (b_midlen < 0) b_midlen = 0;
 
-		name = xmalloc(len_a + len_b - pfx_length - sfx_length + 7);
+		name = xmalloc(pfx_length + a_midlen + b_midlen + sfx_length + 7);
 		sprintf(name, "%.*s{%.*s => %.*s}%s",
 			pfx_length, a,
 			a_midlen, a + pfx_length,