INFO: trying to register non-static key.
the code is fine but needs lockdep annotation.
turning off the locking correctness validator.
CPU: 0 PID: 14584 Comm: syz-executor.0 Not tainted 5.6.0-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x188/0x20d lib/dump_stack.c:118
 assign_lock_key kernel/locking/lockdep.c:913 [inline]
 register_lock_class+0x1664/0x1760 kernel/locking/lockdep.c:1225
 __lock_acquire+0x104/0x4e00 kernel/locking/lockdep.c:4223
 lock_acquire+0x1f2/0x8f0 kernel/locking/lockdep.c:4923
 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
 _raw_spin_lock_irqsave+0x8c/0xbf kernel/locking/spinlock.c:159
 __wake_up_common_lock+0xb4/0x130 kernel/sched/wait.c:122
 io_cqring_ev_posted+0xa5/0x1e0 fs/io_uring.c:1150
 io_poll_remove_all fs/io_uring.c:4343 [inline]
 io_ring_ctx_wait_and_kill+0x2bb/0xa50 fs/io_uring.c:7223
 io_uring_create fs/io_uring.c:7761 [inline]
 io_uring_setup+0x115e/0x22b0 fs/io_uring.c:7788
 do_syscall_32_irqs_on arch/x86/entry/common.c:337 [inline]
 do_fast_syscall_32+0x270/0xe90 arch/x86/entry/common.c:396
 entry_SYSENTER_compat+0x70/0x7f arch/x86/entry/entry_64_compat.S:139
general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007]
CPU: 0 PID: 14584 Comm: syz-executor.0 Not tainted 5.6.0-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:__wake_up_common+0xdf/0x650 kernel/sched/wait.c:86
Code: 05 00 00 4c 8b 43 40 49 83 e8 18 49 8d 78 18 48 39 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 3d 05 00 00 49 8b 40 18 89 54 24 10 31 db 48 bd
RSP: 0018:ffffc900172a7c10 EFLAGS: 00010046
RAX: dffffc0000000000 RBX: ffff8880a7084120 RCX: 0000000000000000
RDX: 0000000000000001 RSI: 1ffffffff1512372 RDI: 0000000000000000
RBP: 0000000000000000 R08: ffffffffffffffe8 R09: ffffc900172a7ca8
R10: 0000000000000003 R11: fffff52002e54f7c R12: 0000000000000001
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff8880ae600000(0063) knlGS:00000000f5d30b40
CS:  0010 DS: 002b ES: 002b CR0: 0000000080050033
CR2: 000000000927e1b4 CR3: 000000008b2cb000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 __wake_up_common_lock+0xd0/0x130 kernel/sched/wait.c:123
 io_cqring_ev_posted+0xa5/0x1e0 fs/io_uring.c:1150
 io_poll_remove_all fs/io_uring.c:4343 [inline]
 io_ring_ctx_wait_and_kill+0x2bb/0xa50 fs/io_uring.c:7223
 io_uring_create fs/io_uring.c:7761 [inline]
 io_uring_setup+0x115e/0x22b0 fs/io_uring.c:7788
 do_syscall_32_irqs_on arch/x86/entry/common.c:337 [inline]
 do_fast_syscall_32+0x270/0xe90 arch/x86/entry/common.c:396
 entry_SYSENTER_compat+0x70/0x7f arch/x86/entry/entry_64_compat.S:139
Modules linked in:
---[ end trace 605b61bda6a27d20 ]---
RIP: 0010:__wake_up_common+0xdf/0x650 kernel/sched/wait.c:86
Code: 05 00 00 4c 8b 43 40 49 83 e8 18 49 8d 78 18 48 39 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 3d 05 00 00 49 8b 40 18 89 54 24 10 31 db 48 bd
RSP: 0018:ffffc900172a7c10 EFLAGS: 00010046
RAX: dffffc0000000000 RBX: ffff8880a7084120 RCX: 0000000000000000
RDX: 0000000000000001 RSI: 1ffffffff1512372 RDI: 0000000000000000
RBP: 0000000000000000 R08: ffffffffffffffe8 R09: ffffc900172a7ca8
R10: 0000000000000003 R11: fffff52002e54f7c R12: 0000000000000001
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff8880ae600000(0063) knlGS:00000000f5d30b40
CS:  0010 DS: 002b ES: 002b CR0: 0000000080050033
CR2: 000000000927e1b4 CR3: 000000008b2cb000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400