From 6f1b4574b464020ca306f08bd0dac4ca90fe7617 Mon Sep 17 00:00:00 2001 From: =?utf8?q?Zbigniew=20J=C4=99drzejewski-Szmek?= Date: Fri, 29 Apr 2022 15:55:59 +0200 Subject: [PATCH] libsystemd-network: add assert about packet length We reject too-short packets in client_receive_message_raw(), so the packets that dhcp_packet_verify_headers() gets are of sufficient size. But let's add an assert to clarify this for the reader. Closes #23223. --- src/libsystemd-network/dhcp-packet.c | 1 + 1 file changed, 1 insertion(+) diff --git a/src/libsystemd-network/dhcp-packet.c b/src/libsystemd-network/dhcp-packet.c index ce40ad5c323..1543d9addee 100644 --- a/src/libsystemd-network/dhcp-packet.c +++ b/src/libsystemd-network/dhcp-packet.c @@ -129,6 +129,7 @@ int dhcp_packet_verify_headers(DHCPPacket *packet, size_t len, bool checksum, ui size_t hdrlen; assert(packet); + assert(len >= sizeof(DHCPPacket)); /* IP */ -- 2.47.3