From: Phil Sutter <phil@nwl.cc>
Date: Wed, 2 Jun 2021 09:04:30 +0000 (+0200)
Subject: libxtables: Fix memleak in xtopt_parse_hostmask()
X-Git-Tag: v1.8.8~158
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=ffe88f8f01263687e82ef4d3d2bdc0cb5444711e;p=thirdparty%2Fiptables.git

libxtables: Fix memleak in xtopt_parse_hostmask()

The allocated hostmask duplicate needs to be freed again.

Fixes: 66266abd17adc ("libxtables: XTTYPE_HOSTMASK support")
Signed-off-by: Phil Sutter <phil@nwl.cc>
---

diff --git a/libxtables/xtoptions.c b/libxtables/xtoptions.c
index d329f2ff..0dcdf607 100644
--- a/libxtables/xtoptions.c
+++ b/libxtables/xtoptions.c
@@ -763,6 +763,7 @@ static void xtopt_parse_hostmask(struct xt_option_call *cb)
 	cb->arg = p;
 	xtopt_parse_plenmask(cb);
 	cb->arg = orig_arg;
+	free(work);
 }
 
 static void xtopt_parse_ethermac(struct xt_option_call *cb)