Oops: stack segment: 0000 [#1] SMP KASAN PTI
CPU: 1 UID: 0 PID: 5840 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full)
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
RIP: 0010:kernfs_rename_ns+0x3a/0x7b0 fs/kernfs/dir.c:1752
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 21 e2 55 ff 4d 8d 7e 30 4c 89 fd 48 c1 ed 03 <42> 80 7c 25 00 00 74 08 4c 89 ff e8 56 34 c0 ff 49 83 3f 00 0f 84
RSP: 0018:ffffc900043b75e0 EFLAGS: 00010206
RAX: ffffffff826fddcf RBX: 0000000000000000 RCX: ffff88807f640000
RDX: 0000000000000000 RSI: ffff8880202dd690 RDI: 0000000000000000
RBP: 0000000000000006 R08: ffff88807f640000 R09: 0000000000000008
R10: 0000000000000007 R11: 0000000000000000 R12: dffffc0000000000
R13: ffff8880202dd690 R14: 0000000000000000 R15: 0000000000000030
FS: 0000000000000000(0000) GS:ffff888125554000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fff3c57c168 CR3: 000000007998c000 CR4: 00000000003526f0
Call Trace:
<TASK>
kobject_move+0x55b/0x720 lib/kobject.c:569
device_move+0xe0/0x730 drivers/base/core.c:4608
hci_conn_del_sysfs+0xb8/0x1a0 net/bluetooth/hci_sysfs.c:75
hci_conn_cleanup net/bluetooth/hci_conn.c:173 [inline]
hci_conn_del+0xc36/0x1230 net/bluetooth/hci_conn.c:1240
hci_conn_hash_flush+0x191/0x260 net/bluetooth/hci_conn.c:2651
hci_dev_close_sync+0x821/0x10e0 net/bluetooth/hci_sync.c:5368
hci_dev_do_close net/bluetooth/hci_core.c:502 [inline]
hci_unregister_dev+0x21a/0x5a0 net/bluetooth/hci_core.c:2716
vhci_release+0x152/0x1a0 drivers/bluetooth/hci_vhci.c:690
__fput+0x44f/0xa70 fs/file_table.c:469
task_work_run+0x1d9/0x270 kernel/task_work.c:233
exit_task_work include/linux/task_work.h:40 [inline]
do_exit+0x70f/0x23c0 kernel/exit.c:976
do_group_exit+0x21b/0x2d0 kernel/exit.c:1118
get_signal+0x1284/0x1330 kernel/signal.c:3034
arch_do_signal_or_restart+0xbc/0x830 arch/x86/kernel/signal.c:337
__exit_to_user_mode_loop kernel/entry/common.c:64 [inline]
exit_to_user_mode_loop+0x86/0x480 kernel/entry/common.c:98
__exit_to_user_mode_prepare include/linux/irq-entry-common.h:226 [inline]
syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:256 [inline]
syscall_exit_to_user_mode include/linux/entry-common.h:325 [inline]
do_syscall_64+0x32d/0xf80 arch/x86/entry/syscall_64.c:100
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f999115d04e
Code: Unable to access opcode bytes at 0x7f999115d024.
RSP: 002b:00007ffdc99b9898 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: fffffffffffffe00 RBX: 000055557961a500 RCX: 00007f999115d04e
RDX: 0000000000000030 RSI: 00007ffdc99b9990 RDI: 00000000000000f9
RBP: 00007ffdc99b993c R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000258
R13: 00000000000927c0 R14: 0000000000066521 R15: 00007ffdc99b9990
</TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:kernfs_rename_ns+0x3a/0x7b0 fs/kernfs/dir.c:1752
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 21 e2 55 ff 4d 8d 7e 30 4c 89 fd 48 c1 ed 03 <42> 80 7c 25 00 00 74 08 4c 89 ff e8 56 34 c0 ff 49 83 3f 00 0f 84
RSP: 0018:ffffc900043b75e0 EFLAGS: 00010206
RAX: ffffffff826fddcf RBX: 0000000000000000 RCX: ffff88807f640000
RDX: 0000000000000000 RSI: ffff8880202dd690 RDI: 0000000000000000
RBP: 0000000000000006 R08: ffff88807f640000 R09: 0000000000000008
R10: 0000000000000007 R11: 0000000000000000 R12: dffffc0000000000
R13: ffff8880202dd690 R14: 0000000000000000 R15: 0000000000000030
FS: 0000000000000000(0000) GS:ffff888125454000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f898c8a843c CR3: 00000000377ac000 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 21 e2 55 ff call 0xff55e240
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 56 34 c0 ff call 0xffc03490
3a: 49 83 3f 00 cmpq $0x0,(%r15)
3e: 0f .byte 0xf
3f: 84 .byte 0x84