------------[ cut here ]------------
DEBUG_LOCKS_WARN_ON(lock->magic != lock)
WARNING: CPU: 1 PID: 6688 at kernel/locking/mutex.c:564 __mutex_lock_common kernel/locking/mutex.c:564 [inline]
WARNING: CPU: 1 PID: 6688 at kernel/locking/mutex.c:564 __mutex_lock+0xdac/0xee0 kernel/locking/mutex.c:735
Modules linked in:
CPU: 1 UID: 0 PID: 6688 Comm: kbnepd bnep0 Not tainted 6.13.0-rc7-syzkaller-01131-g8d20dcda404d #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024
RIP: 0010:__mutex_lock_common kernel/locking/mutex.c:564 [inline]
RIP: 0010:__mutex_lock+0xdac/0xee0 kernel/locking/mutex.c:735
Code: 0f b6 04 38 84 c0 0f 85 1a 01 00 00 83 3d 6f 40 4c 04 00 75 19 90 48 c7 c7 60 84 0a 8c 48 c7 c6 00 85 0a 8c e8 f5 dc 91 f5 90 <0f> 0b 90 90 90 e9 c7 f3 ff ff 90 0f 0b 90 e9 29 f8 ff ff 90 0f 0b
RSP: 0018:ffffc90010647920 EFLAGS: 00010246
RAX: 3cb990d9d2425900 RBX: ffff88805adeccb0 RCX: ffff88802c011e00
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffffc90010647ab0 R08: ffffffff81602ac2 R09: fffffbfff1cfa210
R10: dffffc0000000000 R11: fffffbfff1cfa210 R12: 0000000000000000
R13: 0000000000000000 R14: 1ffff920020c8f38 R15: dffffc0000000000
FS:  0000000000000000(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007eff44577bac CR3: 000000000e736000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 netdev_lock include/linux/netdevice.h:2691 [inline]
 __netif_napi_del include/linux/netdevice.h:2829 [inline]
 netif_napi_del include/linux/netdevice.h:2848 [inline]
 free_netdev+0x2d9/0x610 net/core/dev.c:11621
 netdev_run_todo+0xf21/0x10d0 net/core/dev.c:11189
 bnep_session+0x2e3c/0x3030 net/bluetooth/bnep/core.c:525
 kthread+0x2f0/0x390 kernel/kthread.c:389
 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>