From: Timo Sirainen <timo.sirainen@open-xchange.com>
Date: Mon, 27 Sep 2021 08:49:05 +0000 (+0300)
Subject: lib: test-strfuncs - Avoid testing p_strndup() with overlong max_chars parameter
X-Git-Tag: 2.3.17~39
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=0a70b02bbb44ecb774562cb8b4559b2ec823c2d1;p=thirdparty%2Fdovecot%2Fcore.git

lib: test-strfuncs - Avoid testing p_strndup() with overlong max_chars parameter

This ended up in memchr() call with n=SIZE_MAX-1, which sometimes doesn't
work right with old glibc versions.

Fixes:
Panic: Trying to allocate 18446744073709551615 bytes
---

diff --git a/src/lib/test-strfuncs.c b/src/lib/test-strfuncs.c
index f9154709f9..b5463846bd 100644
--- a/src/lib/test-strfuncs.c
+++ b/src/lib/test-strfuncs.c
@@ -26,7 +26,7 @@ static void test_p_strndup(void)
 		{ "foo", "fo", 2 },
 		{ "foo", "foo", 3 },
 		{ "foo", "foo", 4 },
-		{ "foo", "foo", SIZE_MAX-1 },
+		{ "foo\0more", "foo", 8 },
 	};
 	test_begin("p_strndup()");