From 626ea66f3d54ba6e749230d3aa0ce8f4ddfded9c Mon Sep 17 00:00:00 2001
From: lvgenggeng <lvgenggeng@uniontech.com>
Date: Tue, 31 May 2022 08:37:38 +0800
Subject: [PATCH] ping: Fix potential memory leakage

If user use '-p' opt multi-times, the previous pointer generated by
strdup() will be discarded.

Closes: https://github.com/iputils/iputils/pull/409

Reviewed-by: Cyril Hrubis <chrubis@suse.cz>
Reviewed-by: Petr Vorel <pvorel@suse.cz>
Signed-off-by: lvgenggeng <lvgenggeng@uniontech.com>
---
 ping/ping.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/ping/ping.c b/ping/ping.c
index 8a7f701..10f2cf3 100644
--- a/ping/ping.c
+++ b/ping/ping.c
@@ -449,6 +449,7 @@ main(int argc, char **argv)
 			break;
 		case 'p':
 			rts.opt_pingfilled = 1;
+			free(outpack_fill);
 			outpack_fill = strdup(optarg);
 			if (!outpack_fill)
 				error(2, errno, _("memory allocation failed"));
-- 
2.27.0