linux-kernel - Re: [syzbot] [wireless?] [net?] WARNING in ieee80211_rfkill

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Message-ID: <0000000000009f7441060a2b3ac8@google.com>
Date:   Tue, 14 Nov 2023 22:44:03 -0800
From:   syzbot <syzbot+7e59a5bfc7a897247e18@...kaller.appspotmail.com>
To:     linux-kernel@...r.kernel.org, mukattreyee@...il.com,
        syzkaller-bugs@...glegroups.com
Subject: Re: [syzbot] [wireless?] [net?] WARNING in ieee80211_rfkill_poll

Hello,

syzbot has tested the proposed patch but the reproducer is still triggering an issue:
WARNING in ieee80211_rfkill_poll

------------[ cut here ]------------
WARNING: CPU: 1 PID: 22 at net/mac80211/driver-ops.h:688 drv_rfkill_poll net/mac80211/driver-ops.h:688 [inline]
WARNING: CPU: 1 PID: 22 at net/mac80211/driver-ops.h:688 ieee80211_rfkill_poll+0x134/0x170 net/mac80211/cfg.c:3100
Modules linked in:
CPU: 1 PID: 22 Comm: kworker/1:0 Not tainted 6.7.0-rc1-syzkaller-00019-gc42d9eeef8e5 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/10/2023
Workqueue: events_power_efficient rfkill_poll
RIP: 0010:drv_rfkill_poll net/mac80211/driver-ops.h:688 [inline]
RIP: 0010:ieee80211_rfkill_poll+0x134/0x170 net/mac80211/cfg.c:3100
Code: 60 07 00 00 be ff ff ff ff 48 8d 78 68 e8 24 f4 38 00 31 ff 89 c5 89 c6 e8 79 22 39 fb 85 ed 0f 85 44 ff ff ff e8 fc 26 39 fb <0f> 0b e9 38 ff ff ff e8 f0 26 39 fb 0f 0b 48 c7 c7 78 13 34 89 e8
RSP: 0018:ffffc9000017fc90 EFLAGS: 00010293
RAX: 0000000000000000 RBX: ffff888112e50700 RCX: ffffffff8614d1d7
RDX: ffff888103a6ba00 RSI: ffffffff8614d1e4 RDI: 0000000000000005
RBP: 0000000000000000 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000000 R11: 1ffffffff15c0565 R12: ffff888112e50700
R13: 0000000000000001 R14: ffffc9000017fd80 R15: ffff8881f673ad40
FS:  0000000000000000(0000) GS:ffff8881f6700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000056206539e088 CR3: 0000000109b43000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 rdev_rfkill_poll net/wireless/rdev-ops.h:636 [inline]
 cfg80211_rfkill_poll+0xc9/0x240 net/wireless/core.c:224
 rfkill_poll+0x8d/0x110 net/rfkill/core.c:1037
 process_one_work+0x884/0x15c0 kernel/workqueue.c:2630
 process_scheduled_works kernel/workqueue.c:2703 [inline]
 worker_thread+0x8b9/0x1290 kernel/workqueue.c:2784
 kthread+0x33c/0x440 kernel/kthread.c:388
 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:242
 </TASK>


Tested on:

commit:         c42d9eee Merge tag 'hardening-v6.7-rc2' of git://git.k..
git tree:       https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
console output: https://syzkaller.appspot.com/x/log.txt?x=1232175b680000
kernel config:  https://syzkaller.appspot.com/x/.config?x=bc2b6251fe8086ab
dashboard link: https://syzkaller.appspot.com/bug?extid=7e59a5bfc7a897247e18
compiler:       gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40

Note: no patches were applied.