From: Alan T. DeKok <aland@freeradius.org>
Date: Tue, 11 Feb 2025 21:19:28 +0000 (-0500)
Subject: check that the packet is well-formed
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=d730af1d7a9d0176be7aa81ea1627d85149f2767;p=thirdparty%2Ffreeradius-server.git

check that the packet is well-formed

rad_decode() doesn't do this, but instead assumes that the packet
is OK.
---

diff --git a/src/main/fuzzer.c b/src/main/fuzzer.c
index f20e5cfff5..93b0e3afb2 100644
--- a/src/main/fuzzer.c
+++ b/src/main/fuzzer.c
@@ -155,8 +155,10 @@ int LLVMFuzzerTestOneInput(const uint8_t *buf, size_t len)
 	memcpy(&packet->data, &buf, sizeof(buf)); /* const issues */
 	packet->data_len = len;
 
-	(void) rad_decode(packet, NULL, "testing123");
-	if (fr_debug_lvl > 3) vp_printlist(stdout, packet->vps);
+	if (rad_packet_ok(packet, 0, NULL)) {
+		(void) rad_decode(packet, NULL, "testing123");
+		if (fr_debug_lvl > 3) vp_printlist(stdout, packet->vps);
+	}
 
 	packet->data = NULL;
 	packet->data_len = 0;