Mirrors/esp-idf
1
0
Fork 0
mirror of https://github.com/espressif/esp-idf.git synced 2026-07-17 16:33:02 +03:00
Code Issues Packages Projects Releases Wiki Activity

fix(lwip): Adds nullchecks after DHCP server alloc'd pools

Browse Source
This commit is contained in:
David Cermak
2026-06-23 14:28:51 +02:00
parent 32ca6039a0
commit 71eeec18c4
1 changed files with 8 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

8
components/lwip/apps/dhcpserver/dhcpserver.c
View File

@@ -1239,11 +1239,19 @@ static s16_t parse_msg(dhcps_t *dhcps, struct dhcps_msg *m, u16_t len)
pnode = NULL;
} else {
pdhcps_pool = (struct dhcps_pool *)mem_calloc(1, sizeof(struct dhcps_pool));
if (pdhcps_pool == NULL) {
return 0;
}
pdhcps_pool->ip.addr = dhcps->client_address.addr;
memcpy(pdhcps_pool->mac, m->chaddr, sizeof(pdhcps_pool->mac));
pdhcps_pool->lease_timer = lease_timer;
pnode = (list_node *)mem_calloc(1, sizeof(list_node));
if (pnode == NULL) {
mem_free(pdhcps_pool);
pdhcps_pool = NULL;
return 0;
}
pnode->pnode = pdhcps_pool;
pnode->pnext = NULL;