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hostapd: fix a null pointer dereference in wpa_supplicant on teardown

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Signed-off-by: Felix Fietkau <nbd@nbd.name>
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Felix Fietkau 2024-05-01 18:57:00 +02:00
parent a8bfdf2ed4
commit 52a5f4491c
1 changed files with 20 additions and 0 deletions
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package/network/services/hostapd/patches/052-AP-add-missing-null-pointer-check-in-hostapd_free_ha.patch Normal file
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@ -0,0 +1,20 @@
From: Felix Fietkau <nbd@nbd.name>
Date: Wed, 1 May 2024 18:55:24 +0200
Subject: [PATCH] AP: add missing null pointer check in hostapd_free_hapd_data
When called from wpa_supplicant, iface->interfaces can be NULL
Signed-off-by: Felix Fietkau <nbd@nbd.name>
---
--- a/src/ap/hostapd.c
+++ b/src/ap/hostapd.c
@@ -502,7 +502,7 @@ void hostapd_free_hapd_data(struct hosta
struct hapd_interfaces *ifaces = hapd->iface->interfaces;
size_t i;
- for (i = 0; i < ifaces->count; i++) {
+ for (i = 0; ifaces && i < ifaces->count; i++) {
struct hostapd_iface *iface = ifaces->iface[i];
size_t j;