From: David Härdeman <david@hardeman.nu>
Date: Sun, 23 Nov 2025 14:00:45 +0000 (+0100)
Subject: config: handle realloc failure in piofolder parsing
X-Git-Url: http://git.openwrt.org/%22https:/collectd.org//%22http:/www.crowdsec.net/%22/%22https:/collectd.org/%22http:/www.crowdsec.net/%22?a=commitdiff_plain;h=2e1042c6c07faad22bc300d1c526b24089b1ced9;p=project%2Fodhcpd.git

config: handle realloc failure in piofolder parsing

Another realloc that goes unchecked.

Signed-off-by: David Härdeman <david@hardeman.nu>
Link: https://github.com/openwrt/odhcpd/pull/320
Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
---

diff --git a/src/config.c b/src/config.c
index 53362b5..b7f32ee 100644
--- a/src/config.c
+++ b/src/config.c
@@ -2123,7 +2123,11 @@ void config_load_ra_pio(struct interface *iface)
 		free(iface->pios);
 		iface->pios = NULL;
 	} else if (iface->pio_cnt != pio_cnt) {
-		iface->pios = realloc(iface->pios, sizeof(struct ra_pio) * iface->pio_cnt);
+		struct ra_pio *tmp;
+
+		tmp = realloc(iface->pios, sizeof(struct ra_pio) * iface->pio_cnt);
+		if (tmp)
+			iface->pios = tmp;
 	}
 }