============================================
WARNING: possible recursive locking detected
6.6.0-rc5-syzkaller-00267-g9a3dad63edbe #0 Not tainted
--------------------------------------------
syz-executor.4/26563 is trying to acquire lock:
ffff88805387a888 (&data->mtx){+.+.}-{3:3}, at: rfkill_send_events+0x228/0x460 net/rfkill/core.c:286

but task is already holding lock:
ffff88805603a088 (&data->mtx){+.+.}-{3:3}, at: rfkill_fop_open+0x143/0x860 net/rfkill/core.c:1183

other info that might help us debug this:
 Possible unsafe locking scenario:

       CPU0
       ----
  lock(&data->mtx);
  lock(&data->mtx);

 *** DEADLOCK ***

 May be due to missing lock nesting notation

3 locks held by syz-executor.4/26563:
 #0: ffffffff8da7bd28 (misc_mtx){+.+.}-{3:3}, at: misc_open+0x5c/0x380 drivers/char/misc.c:129
 #1: ffffffff8e79d8a8 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_open+0x134/0x860 net/rfkill/core.c:1182
 #2: ffff88805603a088 (&data->mtx){+.+.}-{3:3}, at: rfkill_fop_open+0x143/0x860 net/rfkill/core.c:1183

stack backtrace:
CPU: 1 PID: 26563 Comm: syz-executor.4 Not tainted 6.6.0-rc5-syzkaller-00267-g9a3dad63edbe #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/06/2023
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x1e7/0x2d0 lib/dump_stack.c:106
 check_deadlock kernel/locking/lockdep.c:3062 [inline]
 validate_chain kernel/locking/lockdep.c:3855 [inline]
 __lock_acquire+0x6a81/0x7f70 kernel/locking/lockdep.c:5136
 lock_acquire+0x1e3/0x520 kernel/locking/lockdep.c:5753
 __mutex_lock_common kernel/locking/mutex.c:603 [inline]
 __mutex_lock+0x136/0xd60 kernel/locking/mutex.c:747
 rfkill_send_events+0x228/0x460 net/rfkill/core.c:286
 rfkill_sync net/rfkill/core.c:379 [inline]
 rfkill_fop_open+0x2b9/0x860 net/rfkill/core.c:1193
 misc_open+0x30b/0x380 drivers/char/misc.c:165
 chrdev_open+0x551/0x630 fs/char_dev.c:414
 do_dentry_open+0x80f/0x1430 fs/open.c:929
 do_open fs/namei.c:3639 [inline]
 path_openat+0x27bb/0x3180 fs/namei.c:3796
 do_filp_open+0x234/0x490 fs/namei.c:3823
 do_sys_openat2+0x13e/0x1d0 fs/open.c:1422
 do_sys_open fs/open.c:1437 [inline]
 __do_sys_openat fs/open.c:1453 [inline]
 __se_sys_openat fs/open.c:1448 [inline]
 __x64_sys_openat+0x247/0x290 fs/open.c:1448
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f9bd8c7cae9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 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 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f9bd77fe0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007f9bd8d9bf80 RCX: 00007f9bd8c7cae9
RDX: 0000000000121002 RSI: 0000000020000240 RDI: ffffffffffffff9c
RBP: 00007f9bd8cc847a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007f9bd8d9bf80 R15: 00007ffd47488fa8
 </TASK>