From e102d4353d7cfd69a597cd976eabdcb74641be69 Mon Sep 17 00:00:00 2001
From: Alex Riesen <raa.lkml@gmail.com>
Date: Fri, 4 May 2007 23:51:32 +0200
Subject: [PATCH] Small correction in reading of commit headers

Check if a line of the header has enough characters to possibly
contain the requested prefix.

Signed-off-by: Alex Riesen <raa.lkml@gmail.com>
Signed-off-by: Junio C Hamano <junkio@cox.net>
---
 commit.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/commit.c b/commit.c
index eb911f44d..7d78e786e 100644
--- a/commit.c
+++ b/commit.c
@@ -640,7 +640,9 @@ static char *get_header(const struct commit *commit, const char *key)
 			next = NULL;
 		} else
 			next = eol + 1;
-		if (!strncmp(line, key, key_len) && line[key_len] == ' ') {
+		if (eol - line > key_len &&
+		    !strncmp(line, key, key_len) &&
+		    line[key_len] == ' ') {
 			int len = eol - line - key_len;
 			char *ret = xmalloc(len);
 			memcpy(ret, line + key_len + 1, len - 1);
-- 
2.30.2