============================================
WARNING: possible recursive locking detected
6.6.0-rc6-syzkaller-g78124b0c1d10 #0 Not tainted
--------------------------------------------
syz-executor.5/9354 is trying to acquire lock:
ffff0000c94ea488 (&data->mtx){+.+.}-{3:3}, at: rfkill_send_events+0x1e0/0x3c8 net/rfkill/core.c:286

but task is already holding lock:
ffff0000d13df488 (&data->mtx){+.+.}-{3:3}, at: rfkill_fop_open+0x13c/0x778 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.5/9354:
 #0: ffff80008f7e57c8 (misc_mtx){+.+.}-{3:3}, at: misc_open+0x6c/0x368 drivers/char/misc.c:129
 #1: ffff800090dc4bc8 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_open+0x12c/0x778 net/rfkill/core.c:1182
 #2: ffff0000d13df488 (&data->mtx){+.+.}-{3:3}, at: rfkill_fop_open+0x13c/0x778 net/rfkill/core.c:1183

stack backtrace:
CPU: 0 PID: 9354 Comm: syz-executor.5 Not tainted 6.6.0-rc6-syzkaller-g78124b0c1d10 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/06/2023
Call trace:
 dump_backtrace+0x1b8/0x1e4 arch/arm64/kernel/stacktrace.c:233
 show_stack+0x2c/0x44 arch/arm64/kernel/stacktrace.c:240
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0xd0/0x124 lib/dump_stack.c:106
 dump_stack+0x1c/0x28 lib/dump_stack.c:113
 print_deadlock_bug+0x4e4/0x660 kernel/locking/lockdep.c:3012
 check_deadlock kernel/locking/lockdep.c:3062 [inline]
 validate_chain kernel/locking/lockdep.c:3855 [inline]
 __lock_acquire+0x5fd0/0x75e8 kernel/locking/lockdep.c:5136
 lock_acquire+0x23c/0x71c kernel/locking/lockdep.c:5753
 __mutex_lock_common+0x190/0x21a0 kernel/locking/mutex.c:603
 __mutex_lock kernel/locking/mutex.c:747 [inline]
 mutex_lock_nested+0x2c/0x38 kernel/locking/mutex.c:799
 rfkill_send_events+0x1e0/0x3c8 net/rfkill/core.c:286
 rfkill_event net/rfkill/core.c:301 [inline]
 rfkill_set_block+0x310/0x37c net/rfkill/core.c:369
 rfkill_sync net/rfkill/core.c:379 [inline]
 rfkill_fop_open+0x284/0x778 net/rfkill/core.c:1193
 misc_open+0x2f0/0x368 drivers/char/misc.c:165
 chrdev_open+0x3e8/0x4fc fs/char_dev.c:414
 do_dentry_open+0x6fc/0x118c fs/open.c:929
 vfs_open+0x7c/0x90 fs/open.c:1063
 do_open fs/namei.c:3639 [inline]
 path_openat+0x1f2c/0x27f8 fs/namei.c:3796
 do_filp_open+0x1bc/0x3cc fs/namei.c:3823
 do_sys_openat2+0x124/0x1b8 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]
 __arm64_sys_openat+0x1f0/0x240 fs/open.c:1448
 __invoke_syscall arch/arm64/kernel/syscall.c:37 [inline]
 invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:51
 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:136
 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:155
 el0_svc+0x54/0x158 arch/arm64/kernel/entry-common.c:678
 el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:696
 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:595