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287e2565e2
Add a missing NULL pointer check when deleting beacons
Signed-off-by: Felix Fietkau <nbd@nbd.name>
(cherry picked from commit 3984fb0582)
Link: https://github.com/openwrt/openwrt/pull/15898
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
22 lines
637 B
Diff
22 lines
637 B
Diff
From: Felix Fietkau <nbd@nbd.name>
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Date: Fri, 14 Jun 2024 14:41:16 +0200
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Subject: [PATCH] nl80211: fix crash when adding an interface fails
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When adding an interface fails early, the bss link is still NULL.
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Avoid crashing on deleting beacons.
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Signed-off-by: Felix Fietkau <nbd@nbd.name>
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---
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--- a/src/drivers/driver_nl80211.c
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+++ b/src/drivers/driver_nl80211.c
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@@ -3004,7 +3004,7 @@ static int wpa_driver_nl80211_del_beacon
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struct nl_msg *msg;
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struct wpa_driver_nl80211_data *drv = bss->drv;
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- if (!link->beacon_set)
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+ if (!link || !link->beacon_set)
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return 0;
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wpa_printf(MSG_DEBUG, "nl80211: Remove beacon (ifindex=%d)",
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