INFO: trying to register non-static key.
The code is fine but needs lockdep annotation, or maybe
you didn't initialize this object before use?
turning off the locking correctness validator.
CPU: 0 PID: 23391 Comm: syz-executor.5 Not tainted 5.19.0-syzkaller-02972-g200e340f2196 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106
assign_lock_key kernel/locking/lockdep.c:979 [inline]
register_lock_class+0xf30/0x1130 kernel/locking/lockdep.c:1292
__lock_acquire+0x10a/0x5660 kernel/locking/lockdep.c:4932
lock_acquire kernel/locking/lockdep.c:5666 [inline]
lock_acquire+0x1ab/0x570 kernel/locking/lockdep.c:5631
percpu_down_read include/linux/percpu-rwsem.h:51 [inline]
hci_uart_flush+0x11e/0x550 drivers/bluetooth/hci_ldisc.c:240
hci_uart_close+0x1d/0x70 drivers/bluetooth/hci_ldisc.c:266
hci_uart_tty_close+0xb1/0x2a0 drivers/bluetooth/hci_ldisc.c:536
tty_ldisc_close+0x110/0x190 drivers/tty/tty_ldisc.c:456
tty_ldisc_kill+0x94/0x150 drivers/tty/tty_ldisc.c:608
tty_ldisc_hangup+0x30b/0x680 drivers/tty/tty_ldisc.c:724
__tty_hangup.part.0+0x40a/0x830 drivers/tty/tty_io.c:637
__tty_hangup drivers/tty/tty_io.c:592 [inline]
tty_vhangup drivers/tty/tty_io.c:707 [inline]
tty_ioctl+0xccd/0x15e0 drivers/tty/tty_io.c:2718
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:870 [inline]
__se_sys_ioctl fs/ioctl.c:856 [inline]
__x64_sys_ioctl+0x193/0x200 fs/ioctl.c:856
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f7cb3889279
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f7cb4a0f168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f7cb399c120 RCX: 00007f7cb3889279
RDX: 0000000000000000 RSI: 0000000000005437 RDI: 0000000000000003
RBP: 00007f7cb38e3189 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffe1c3468bf R14: 00007f7cb4a0f300 R15: 0000000000022000
general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007]
CPU: 1 PID: 23391 Comm: syz-executor.5 Not tainted 5.19.0-syzkaller-02972-g200e340f2196 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022
RIP: 0010:__wake_up_common+0xdf/0x650 kernel/sched/wait.c:100
Code: 05 00 00 4c 8b 43 40 49 83 e8 18 49 8d 78 18 48 3b 3c 24 0f 84 6a 02 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 f9 48 c1 e9 03 <80> 3c 01 00 0f 85 40 05 00 00 49 8b 40 18 89 54 24 10 31 db 48 bd
RSP: 0018:ffffc9000b067a48 EFLAGS: 00010056
RAX: dffffc0000000000 RBX: ffff88801dfdd0c8 RCX: 0000000000000000
RDX: 0000000000000001 RSI: 1ffffffff1b787f9 RDI: 0000000000000000
RBP: ffff88801dfdd118 R08: ffffffffffffffe8 R09: 0000000000000000
R10: fffff5200160cf43 R11: 0000000000000001 R12: ffff88801dfdd0c0
R13: 0000000000000297 R14: 0000000000000000 R15: 0000000000000000
FS: 00007f7cb4a0f700(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055555671a708 CR3: 000000003da1d000 CR4: 0000000000350ee0
Call Trace:
rcu_sync_func+0x119/0x180 kernel/rcu/sync.c:87
rcu_sync_enter+0x150/0x2e0 kernel/rcu/sync.c:150
percpu_down_write+0x62/0x340 kernel/locking/percpu-rwsem.c:225
hci_uart_tty_close+0x162/0x2a0 drivers/bluetooth/hci_ldisc.c:539
tty_ldisc_close+0x110/0x190 drivers/tty/tty_ldisc.c:456
tty_ldisc_kill+0x94/0x150 drivers/tty/tty_ldisc.c:608
tty_ldisc_hangup+0x30b/0x680 drivers/tty/tty_ldisc.c:724
__tty_hangup.part.0+0x40a/0x830 drivers/tty/tty_io.c:637
__tty_hangup drivers/tty/tty_io.c:592 [inline]
tty_vhangup drivers/tty/tty_io.c:707 [inline]
tty_ioctl+0xccd/0x15e0 drivers/tty/tty_io.c:2718
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:870 [inline]
__se_sys_ioctl fs/ioctl.c:856 [inline]
__x64_sys_ioctl+0x193/0x200 fs/ioctl.c:856
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f7cb3889279
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f7cb4a0f168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f7cb399c120 RCX: 00007f7cb3889279
RDX: 0000000000000000 RSI: 0000000000005437 RDI: 0000000000000003
RBP: 00007f7cb38e3189 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffe1c3468bf R14: 00007f7cb4a0f300 R15: 0000000000022000
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:__wake_up_common+0xdf/0x650 kernel/sched/wait.c:100
Code: 05 00 00 4c 8b 43 40 49 83 e8 18 49 8d 78 18 48 3b 3c 24 0f 84 6a 02 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 f9 48 c1 e9 03 <80> 3c 01 00 0f 85 40 05 00 00 49 8b 40 18 89 54 24 10 31 db 48 bd
RSP: 0018:ffffc9000b067a48 EFLAGS: 00010056
RAX: dffffc0000000000 RBX: ffff88801dfdd0c8 RCX: 0000000000000000
RDX: 0000000000000001 RSI: 1ffffffff1b787f9 RDI: 0000000000000000
RBP: ffff88801dfdd118 R08: ffffffffffffffe8 R09: 0000000000000000
R10: fffff5200160cf43 R11: 0000000000000001 R12: ffff88801dfdd0c0
R13: 0000000000000297 R14: 0000000000000000 R15: 0000000000000000
FS: 00007f7cb4a0f700(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055555671a708 CR3: 000000003da1d000 CR4: 0000000000350ee0
----------------
Code disassembly (best guess):
0: 05 00 00 4c 8b add $0x8b4c0000,%eax
5: 43 rex.XB
6: 40 rex
7: 49 83 e8 18 sub $0x18,%r8
b: 49 8d 78 18 lea 0x18(%r8),%rdi
f: 48 3b 3c 24 cmp (%rsp),%rdi
13: 0f 84 6a 02 00 00 je 0x283
19: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax
20: fc ff df
23: 48 89 f9 mov %rdi,%rcx
26: 48 c1 e9 03 shr $0x3,%rcx
* 2a: 80 3c 01 00 cmpb $0x0,(%rcx,%rax,1) <-- trapping instruction
2e: 0f 85 40 05 00 00 jne 0x574
34: 49 8b 40 18 mov 0x18(%r8),%rax
38: 89 54 24 10 mov %edx,0x10(%rsp)
3c: 31 db xor %ebx,%ebx
3e: 48 rex.W
3f: bd .byte 0xbd