Mirrors/esp-idf
1
0
Fork 0
mirror of https://github.com/espressif/esp-idf.git synced 2026-08-18 06:35:35 +03:00
Code Issues Packages Projects Releases Wiki Activity

fix(esp_netif): reject NULL hostname in esp_netif_set_hostname_api

Browse Source 
esp_netif_set_hostname_api() dereferenced hostname via strlen() without
checking it for NULL first, causing a NULL pointer dereference.
This commit is contained in:
Euripedes Rocha Filho
2026-07-03 10:55:28 +02:00
parent 4068c4e7d0
commit 36635ed643
1 changed files with 3 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files

6
components/esp_netif/lwip/esp_netif_lwip.c
View File

@@ -1672,12 +1672,12 @@ static esp_err_t esp_netif_set_hostname_api(esp_netif_api_msg_t *msg)
esp_netif_t *esp_netif = msg->esp_netif;
const char *hostname = msg->data;
ESP_LOGD(TAG, "%s esp_netif:%p hostname %s", __func__, esp_netif, hostname);
if (!esp_netif) {
if (!esp_netif || hostname == NULL) {
return ESP_ERR_INVALID_ARG;
}
ESP_LOGV(TAG, "%s esp_netif:%p hostname %s", __func__, esp_netif, hostname);
#if LWIP_NETIF_HOSTNAME
struct netif *p_netif = esp_netif->lwip_netif;