------------[ cut here ]------------
in_task() && kcov_mode_enabled(mode)
WARNING: kernel/kcov.c:884 at kcov_remote_start+0x527/0x7a0, CPU#1: syz.0.11746/21017
Modules linked in:
CPU: 1 UID: 0 PID: 21017 Comm: syz.0.11746 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
RIP: 0010:kcov_remote_start+0x527/0x7a0
Code: 48 83 c4 10 5b 41 5c 41 5d 41 5e 41 5f 5d e9 00 36 ec 02 e8 cb 6a e3 09 f7 c3 00 02 00 00 0f 84 0c fb ff ff e9 72 fc ff ff 90 <0f> 0b 90 e8 d1 85 e3 09 89 c0 48 c7 c7 b0 ef 39 93 48 03 3c c5 90
RSP: 0018:ffffc9002a74f238 EFLAGS: 00010002
RAX: 0000000080000200 RBX: 0000000000000246 RCX: 0000000000000002
RDX: 0000000000000003 RSI: ffffffff8e21d9f4 RDI: ffffffff8c28abe0
RBP: ffffc9002a74f4f0 R08: ffffc9002a74f018 R09: 0000000000000020
R10: dffffc0000000000 R11: ffffffff81a20c90 R12: ffff88823c628fb0
R13: ffffffff81c5b5c8 R14: ffff88818bdc5880 R15: 0000000000000000
FS:  00007f5344bdc6c0(0000) GS:ffff8882a928a000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffe037f3978 CR3: 00000000391ba000 CR4: 00000000000006f0
Call Trace:
 <TASK>
 ieee80211_rx_list+0xadb/0x3730
 ieee80211_rx_napi+0x1b1/0x3e0
 ieee80211_handle_queued_frames+0xe8/0x1e0
 ieee80211_stop_device+0x3e/0xf0
 ieee80211_do_stop+0x1a24/0x2260
 ieee80211_stop+0x1b1/0x220
 __dev_close_many+0x36d/0x6e0
 netif_close_many+0x225/0x420
 netif_close+0x160/0x220
 dev_close+0x10a/0x220
 cfg80211_shutdown_all_interfaces+0xb0/0x220
 cfg80211_rfkill_set_block+0x2d/0x50
 rfkill_set_block+0x1a4/0x4e0
 rfkill_fop_write+0x461/0x5a0
 vfs_write+0x29a/0xb90
 ksys_write+0x150/0x270
 do_syscall_64+0x15f/0xf80
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f5343d9cdd9
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f5344bdc028 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f5344016090 RCX: 00007f5343d9cdd9
RDX: 0000000000000008 RSI: 0000200000000080 RDI: 0000000000000006
RBP: 00007f5343e32d69 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f5344016128 R14: 00007f5344016090 R15: 00007fff332adb78
 </TASK>
