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[lwip-dhcpd] Fix pbuf leak for oversized requests

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hanzhijian
2026-08-12 10:55:20 +08:00
committed by Rbb666
parent 5c76c21f32
commit c00f13005b
1 changed files with 1 additions and 0 deletions
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components/net/lwip-dhcpd/dhcp_server_raw.c
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@@ -338,6 +338,7 @@ dhcp_server_recv(void *arg, struct udp_pcb *pcb, struct pbuf *p, const ip_addr_t
if (q->tot_len < p->tot_len)
{
LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_LEVEL_WARNING, ("pbuf_alloc dhcp_msg too small %d:%d\n", q->tot_len, p->tot_len));
pbuf_free(q);
pbuf_free(p);
return;
}