patrick/zephyr
1
0
Fork 0
Code Issues Pull requests Actions 8 Packages Projects Releases Wiki Activity

net: mgmt: Handle loops in the linked list

Browse source 
In case the same callback handler is added to the list twice, this can
result in a loop.

Fixes: #69825.

Signed-off-by: Chaitanya Tata <Chaitanya.Tata@nordicsemi.no>
This commit is contained in:
Chaitanya Tata 2024-03-05 23:17:19 +05:30 committed by Henrik Brix Andersen
parent 39f710136e
commit 0a8cbb6a22
1 changed files with 3 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

3
subsys/net/ip/net_mgmt.c
View file

@ -338,6 +338,9 @@ void net_mgmt_add_event_callback(struct net_mgmt_event_callback *cb)
(void)k_mutex_lock(&net_mgmt_callback_lock, K_FOREVER);
/* Remove the callback if it already exists to avoid loop */
sys_slist_find_and_remove(&event_callbacks, &cb->node);
sys_slist_prepend(&event_callbacks, &cb->node);
mgmt_add_event_mask(cb->event_mask);