From c8c4450e1949055cb57e32425b125f45f3481742 Mon Sep 17 00:00:00 2001 From: Jim Meyering Date: Tue, 19 Aug 2008 20:42:04 +0200 Subject: [PATCH] git format-patch: avoid underrun when format.headers is empty or all NLs * builtin-log.c (add_header): Avoid a buffer underrun when format.headers is empty or all newlines. Reproduce with this: git config format.headers '' && git format-patch -1 Signed-off-by: Jim Meyering Signed-off-by: Junio C Hamano --- builtin-log.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/builtin-log.c b/builtin-log.c index f4975cf35f..911fd65990 100644 --- a/builtin-log.c +++ b/builtin-log.c @@ -461,7 +461,7 @@ static int extra_cc_alloc; static void add_header(const char *value) { int len = strlen(value); - while (value[len - 1] == '\n') + while (len && value[len - 1] == '\n') len--; if (!strncasecmp(value, "to: ", 4)) { ALLOC_GROW(extra_to, extra_to_nr + 1, extra_to_alloc); -- 2.11.4.GIT