From: Pradeep Kumar Chitrapu <pradeepc@codeaurora.org>
To: John Crispin <john@phrozen.org>
Cc: Johannes Berg <johannes@sipsolutions.net>,
linux-wireless@vger.kernel.org, ath11k@lists.infradead.org,
linux-wireless-owner@vger.kernel.org
Subject: Re: [PATCH V3 2/9] mac80211: add multiple bssid support to interface handling
Date: Thu, 08 Oct 2020 10:21:30 -0700 [thread overview]
Message-ID: <54033ab6e1bcf7ecda314c3ec81f1736@codeaurora.org> (raw)
In-Reply-To: <cc1fd0b5-d12f-0cdc-f918-b8f761b18c88@phrozen.org>
On 2020-10-08 01:06, John Crispin wrote:
> On 08.10.20 02:33, Pradeep Kumar Chitrapu wrote:
>>>
>>> static int ieee80211_del_iface(struct wiphy *wiphy, struct
>>> wireless_dev *wdev)
>>> {
>>> + struct ieee80211_sub_if_data *sdata;
>>> + struct ieee80211_vif *child, *tmp;
>>> +
>>> + sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
>>> + if (sdata->vif.type == NL80211_IFTYPE_AP) {
>> Hi John, Observed a NULL ptr dereference error here..
>>
>> Thanks
>> Pradeep
>
>
> how did you trigger it ?
>
> John
Hi
Deleted the interface and did rmmod and insmod of cfg80211/mac80211/ath
modules.
[ 883.565933] Unable to handle kernel NULL pointer dereference at
virtual address 00000000
[ 883.565970] pgd = b311c000
[ 883.573357] [00000000] *pgd=00000000
[ 883.579021] Internal error: Oops: 5 [#1] PREEMPT SMP ARM
[ 883.848257] task: bd1ac600 ti: b027a000 task.ti: b027a000
[ 883.852904] PC is at ieee80211_del_iface+0x34/0x90 [mac80211]
[ 883.858333] LR is at extack_doit+0x20/0x6c [compat]
[ 884.092936] [<c751fbd8>] (ieee80211_del_iface [mac80211]) from
[<7f56181c>] (extack_doit+0x20/0x6c [compat])
[ 884.100991] [<7f56181c>] (extack_doit [compat]) from [<8076a340>]
(genl_rcv_msg+0x27c/0x300)
[ 884.110854] [<8076a340>] (genl_rcv_msg) from [<807696c0>]
(netlink_rcv_skb+0x58/0xb4)
Thanks
Pradeep
next prev parent reply other threads:[~2020-10-08 17:21 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-08-12 15:00 [PATCH V3 0/9] mac80211: add multiple bssid / EMA John Crispin
2020-08-12 15:00 ` [PATCH V3 1/9] nl80211: add basic multiple bssid support John Crispin
2020-08-19 2:48 ` Aloka Dixit
2020-08-27 12:58 ` Johannes Berg
2020-08-12 15:00 ` [PATCH V3 2/9] mac80211: add multiple bssid support to interface handling John Crispin
2020-08-27 13:03 ` Johannes Berg
2020-08-27 13:08 ` Johannes Berg
2020-10-08 0:33 ` Pradeep Kumar Chitrapu
2020-10-08 8:06 ` John Crispin
2020-10-08 17:21 ` Pradeep Kumar Chitrapu [this message]
2020-10-08 19:42 ` John Crispin
2020-08-12 15:00 ` [PATCH V3 3/9] mac80211: add multiple bssid support to beacon handling John Crispin
2020-08-12 15:00 ` [PATCH V3 4/9] mac80211: add multiple bssid/ema support to bcn templating John Crispin
2020-08-27 13:10 ` Johannes Berg
2020-08-28 3:20 ` Aloka Dixit
2020-08-12 15:00 ` [PATCH V3 5/9] ath11k: add a struct to pass parameters into ath11k_wmi_vdev_up John Crispin
2020-08-12 15:00 ` [PATCH V3 6/9] ath11k: add the multiple bssid WMI commands John Crispin
2020-08-12 15:00 ` [PATCH V3 7/9] ath11k: add multiple bssid support to device creation John Crispin
2020-08-12 15:00 ` [PATCH V3 8/9] ath11k: add EMA beacon support John Crispin
2020-08-12 15:00 ` [PATCH V3 9/9] ath11k: set the multiple bssid hw flags and capabilities John Crispin
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