From eece041510effa3359135f92714cfa4012bd8922 Mon Sep 17 00:00:00 2001

From: Phil Sutter <phil@nwl.cc>

Date: Wed, 2 Jun 2021 11:04:30 +0200

Subject: [PATCH] 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>

(cherry picked from commit ffe88f8f01263687e82ef4d3d2bdc0cb5444711e)

---

 libxtables/xtoptions.c | 1 +

 1 file changed, 1 insertion(+)

diff --git a/libxtables/xtoptions.c b/libxtables/xtoptions.c

index d329f2ff7979e..0dcdf607f4678 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)

-- 

2.31.1