From 2e1042c6c07faad22bc300d1c526b24089b1ced9 Mon Sep 17 00:00:00 2001
From: =?utf8?q?David=20H=C3=A4rdeman?= <david@hardeman.nu>
Date: Sun, 23 Nov 2025 15:00:45 +0100
Subject: [PATCH] config: handle realloc failure in piofolder parsing
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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>
---
 src/config.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

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;
 	}
 }
 
-- 
2.30.2