Oops: stack segment: 0000 [#1] SMP KASAN PTI CPU: 0 UID: 0 PID: 14927 Comm: kworker/0:1 Not tainted 6.16.0-rc6-next-20250718-syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 Workqueue: events rfkill_op_handler RIP: 0010:kernfs_rename_ns+0x3a/0x7a0 fs/kernfs/dir.c:1747 Code: ec 48 48 89 cb 48 89 54 24 10 49 89 f5 49 89 fe 49 bc 00 00 00 00 00 fc ff df e8 31 1b 62 ff 4d 8d 7e 30 4c 89 fd 48 c1 ed 03 <42> 80 7c 25 00 00 74 08 4c 89 ff e8 26 6b c5 ff 49 83 3f 00 0f 84 RSP: 0018:ffffc90011257620 EFLAGS: 00010206 RAX: ffffffff825d95df RBX: 0000000000000000 RCX: ffff888025d63c00 RDX: 0000000000000000 RSI: ffff8881442b32d0 RDI: 0000000000000000 RBP: 0000000000000006 R08: ffff888025d63c00 R09: 0000000000000008 R10: 0000000000000007 R11: 0000000000000000 R12: dffffc0000000000 R13: ffff8881442b32d0 R14: 0000000000000000 R15: 0000000000000030 FS: 0000000000000000(0000) GS:ffff888125be3000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f9ff1eee000 CR3: 000000006644a000 CR4: 00000000003526f0 Call Trace: kobject_move+0x3a5/0x4f0 lib/kobject.c:569 device_move+0xe0/0x700 drivers/base/core.c:4606 hci_conn_del_sysfs+0xb8/0x170 net/bluetooth/hci_sysfs.c:75 hci_conn_cleanup net/bluetooth/hci_conn.c:175 [inline] hci_conn_del+0x8ff/0xcb0 net/bluetooth/hci_conn.c:1173 hci_conn_hash_flush+0x191/0x230 net/bluetooth/hci_conn.c:2562 hci_dev_close_sync+0xaef/0x1330 net/bluetooth/hci_sync.c:5294 hci_dev_do_close+0x2f/0x90 net/bluetooth/hci_core.c:501 hci_rfkill_set_block+0x21d/0x2e0 net/bluetooth/hci_core.c:929 rfkill_set_block+0x1d2/0x440 net/rfkill/core.c:346 rfkill_epo+0x7e/0x180 net/rfkill/core.c:466 __rfkill_handle_global_op net/rfkill/input.c:60 [inline] rfkill_op_handler+0x84/0x240 net/rfkill/input.c:108 process_one_work kernel/workqueue.c:3236 [inline] process_scheduled_works+0xade/0x17b0 kernel/workqueue.c:3319 worker_thread+0x8a0/0xda0 kernel/workqueue.c:3400 kthread+0x70e/0x8a0 kernel/kthread.c:463 ret_from_fork+0x3f9/0x770 arch/x86/kernel/process.c:148 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:kernfs_rename_ns+0x3a/0x7a0 fs/kernfs/dir.c:1747 Code: ec 48 48 89 cb 48 89 54 24 10 49 89 f5 49 89 fe 49 bc 00 00 00 00 00 fc ff df e8 31 1b 62 ff 4d 8d 7e 30 4c 89 fd 48 c1 ed 03 <42> 80 7c 25 00 00 74 08 4c 89 ff e8 26 6b c5 ff 49 83 3f 00 0f 84 RSP: 0018:ffffc90011257620 EFLAGS: 00010206 RAX: ffffffff825d95df RBX: 0000000000000000 RCX: ffff888025d63c00 RDX: 0000000000000000 RSI: ffff8881442b32d0 RDI: 0000000000000000 RBP: 0000000000000006 R08: ffff888025d63c00 R09: 0000000000000008 R10: 0000000000000007 R11: 0000000000000000 R12: dffffc0000000000 R13: ffff8881442b32d0 R14: 0000000000000000 R15: 0000000000000030 FS: 0000000000000000(0000) GS:ffff888125be3000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f2036d83178 CR3: 00000000789aa000 CR4: 00000000003526f0 ---------------- Code disassembly (best guess): 0: ec in (%dx),%al 1: 48 rex.W 2: 48 89 cb mov %rcx,%rbx 5: 48 89 54 24 10 mov %rdx,0x10(%rsp) a: 49 89 f5 mov %rsi,%r13 d: 49 89 fe mov %rdi,%r14 10: 49 bc 00 00 00 00 00 movabs $0xdffffc0000000000,%r12 17: fc ff df 1a: e8 31 1b 62 ff call 0xff621b50 1f: 4d 8d 7e 30 lea 0x30(%r14),%r15 23: 4c 89 fd mov %r15,%rbp 26: 48 c1 ed 03 shr $0x3,%rbp * 2a: 42 80 7c 25 00 00 cmpb $0x0,0x0(%rbp,%r12,1) <-- trapping instruction 30: 74 08 je 0x3a 32: 4c 89 ff mov %r15,%rdi 35: e8 26 6b c5 ff call 0xffc56b60 3a: 49 83 3f 00 cmpq $0x0,(%r15) 3e: 0f .byte 0xf 3f: 84 .byte 0x84