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hostapd: add missing NULL pointer check on radar notification

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Fixes a race condition that can lead to a hostapd crash

Signed-off-by: Felix Fietkau <nbd@nbd.name>
(cherry picked from commit d864f68232)
This commit is contained in:
Felix Fietkau
2024-01-09 11:05:45 +01:00
parent 3bf602d740
commit 9cd0023e54
1 changed files with 3 additions and 0 deletions
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3
package/network/services/hostapd/src/src/ap/ubus.c
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@@ -1907,6 +1907,9 @@ void hostapd_ubus_notify_radar_detected(struct hostapd_iface *iface, int frequen
struct hostapd_data *hapd; struct hostapd_data *hapd;
int i; int i;
if (!ctx)
return;
blob_buf_init(&b, 0); blob_buf_init(&b, 0);
blobmsg_add_u16(&b, "frequency", frequency); blobmsg_add_u16(&b, "frequency", frequency);
blobmsg_add_u16(&b, "width", chan_width); blobmsg_add_u16(&b, "width", chan_width);