From: Ilia Alshanetsky <iliaa@php.net>
Date: Mon, 9 Feb 2004 04:28:07 +0000 (+0000)
Subject: MFH: Fixed bug #27172 (Possible floating point exception in gmp_powm()).
X-Git-Tag: php-4.3.5RC3~39
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=6af73a9f5e6bdfc925d24ad972a0391b8a4e2e50;p=php

MFH: Fixed bug #27172 (Possible floating point exception in gmp_powm()).
---

diff --git a/NEWS b/NEWS
index 4a4a75d4bc..0cf45290f0 100644
--- a/NEWS
+++ b/NEWS
@@ -3,6 +3,7 @@ PHP 4                                                                      NEWS
 ?? Feb 2004, Version 4.3.5
 - Fixed bug #27175 (tzset() is not being called by PHP on startup).
   (Ilia, sagawa at sohgoh dot net)
+- Fixed bug #27172 (Possible floating point exception in gmp_powm()). (Ilia)
 - Fixed bug #27171 (crash inside gmp_hamdist()). (Jani)
 - Fixed bug #27149 (broken CLOB support in oci8 extension). (Antony)
 - Fixed bug #27135 (Possible crash inside mb_strlen()). (Moriyoshi)
diff --git a/ext/gmp/gmp.c b/ext/gmp/gmp.c
index 87b28539f9..b8b6770918 100644
--- a/ext/gmp/gmp.c
+++ b/ext/gmp/gmp.c
@@ -814,6 +814,11 @@ ZEND_FUNCTION(gmp_powm)
 		WRONG_PARAM_COUNT;
 	}
 
+	convert_to_long_ex(mod_arg);
+	if (!Z_LVAL_PP(mod_arg)) {
+		RETURN_FALSE;
+	}
+
 	FETCH_GMP_ZVAL(gmpnum_base, base_arg);
 	if(Z_TYPE_PP(exp_arg) == IS_LONG && Z_LVAL_PP(exp_arg) >= 0) {
 		use_ui=1;