Oops: stack segment: 0000 [#1] SMP KASAN PTI
CPU: 1 UID: 0 PID: 5879 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full)
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
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 41 f0 61 ff 4d 8d 7e 30 4c 89 fd 48 c1 ed 03 <42> 80 7c 25 00 00 74 08 4c 89 ff e8 86 61 c5 ff 49 83 3f 00 0f 84
RSP: 0018:ffffc9000419f580 EFLAGS: 00010206
RAX: ffffffff825dbe0f RBX: 0000000000000000 RCX: ffff888032d68000
RDX: 0000000000000000 RSI: ffff888143adec30 RDI: 0000000000000000
RBP: 0000000000000006 R08: ffff888032d68000 R09: 0000000000000008
R10: 0000000000000007 R11: 0000000000000000 R12: dffffc0000000000
R13: ffff888143adec30 R14: 0000000000000000 R15: 0000000000000030
FS: 0000000000000000(0000) GS:ffff888125d18000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ff1cb028000 CR3: 0000000078976000 CR4: 00000000003526f0
Call Trace:
<TASK>
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:173 [inline]
hci_conn_del+0xc33/0x11b0 net/bluetooth/hci_conn.c:1211
hci_conn_hash_flush+0x191/0x230 net/bluetooth/hci_conn.c:2600
hci_dev_close_sync+0xaef/0x1330 net/bluetooth/hci_sync.c:5294
hci_dev_do_close net/bluetooth/hci_core.c:501 [inline]
hci_unregister_dev+0x21a/0x510 net/bluetooth/hci_core.c:2715
vhci_release+0x152/0x1a0 drivers/bluetooth/hci_vhci.c:690
__fput+0x449/0xa70 fs/file_table.c:468
task_work_run+0x1d1/0x260 kernel/task_work.c:227
exit_task_work include/linux/task_work.h:40 [inline]
do_exit+0x6b5/0x2300 kernel/exit.c:961
do_group_exit+0x21c/0x2d0 kernel/exit.c:1102
get_signal+0x1286/0x1340 kernel/signal.c:3034
arch_do_signal_or_restart+0x9a/0x750 arch/x86/kernel/signal.c:337
exit_to_user_mode_loop+0x75/0x110 kernel/entry/common.c:40
exit_to_user_mode_prepare include/linux/irq-entry-common.h:225 [inline]
syscall_exit_to_user_mode_work include/linux/entry-common.h:175 [inline]
syscall_exit_to_user_mode include/linux/entry-common.h:210 [inline]
do_syscall_64+0x2bd/0x3b0 arch/x86/entry/syscall_64.c:100
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fefed38d5fc
Code: Unable to access opcode bytes at 0x7fefed38d5d2.
RSP: 002b:00007ffde747ea00 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: fffffffffffffe00 RBX: 0000000000000003 RCX: 00007fefed38d5fc
RDX: 0000000000000030 RSI: 00007ffde747eac0 RDI: 00000000000000f9
RBP: 00007ffde747ea6c R08: 0000000000000000 R09: 00007ffde747e777
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000282
R13: 00000000000927c0 R14: 000000000005f37f R15: 00007ffde747eac0
</TASK>
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 41 f0 61 ff 4d 8d 7e 30 4c 89 fd 48 c1 ed 03 <42> 80 7c 25 00 00 74 08 4c 89 ff e8 86 61 c5 ff 49 83 3f 00 0f 84
RSP: 0018:ffffc9000419f580 EFLAGS: 00010206
RAX: ffffffff825dbe0f RBX: 0000000000000000 RCX: ffff888032d68000
RDX: 0000000000000000 RSI: ffff888143adec30 RDI: 0000000000000000
RBP: 0000000000000006 R08: ffff888032d68000 R09: 0000000000000008
R10: 0000000000000007 R11: 0000000000000000 R12: dffffc0000000000
R13: ffff888143adec30 R14: 0000000000000000 R15: 0000000000000030
FS: 0000000000000000(0000) GS:ffff888125c18000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ff1cacf7e9c CR3: 0000000051c3a000 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 41 f0 61 ff call 0xff61f060
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 86 61 c5 ff call 0xffc561c0
3a: 49 83 3f 00 cmpq $0x0,(%r15)
3e: 0f .byte 0xf
3f: 84 .byte 0x84