INFO: trying to register non-static key. the code is fine but needs lockdep annotation. turning off the locking correctness validator. CPU: 1 PID: 24195 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+0x1e9/0x30e lib/dump_stack.c:118 register_lock_class+0xc65/0x10d0 kernel/locking/lockdep.c:912 __lock_acquire+0x102/0x2b90 kernel/locking/lockdep.c:4223 lock_acquire+0x169/0x480 kernel/locking/lockdep.c:4923 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline] _raw_spin_lock_irqsave+0x9e/0xc0 kernel/locking/spinlock.c:159 __wake_up_common_lock kernel/sched/wait.c:122 [inline] __wake_up+0xb8/0x150 kernel/sched/wait.c:142 io_cqring_ev_posted+0x9f/0x1c0 fs/io_uring.c:1150 io_poll_remove_all fs/io_uring.c:4343 [inline] io_ring_ctx_wait_and_kill+0x537/0xfd0 fs/io_uring.c:7223 io_uring_create fs/io_uring.c:7761 [inline] io_uring_setup fs/io_uring.c:7788 [inline] __do_sys_io_uring_setup fs/io_uring.c:7801 [inline] __se_sys_io_uring_setup+0x1e49/0x2650 fs/io_uring.c:7798 do_syscall_64+0xf3/0x1b0 arch/x86/entry/common.c:295 entry_SYSCALL_64_after_hwframe+0x49/0xb3 RIP: 0033:0x45c849 Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 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 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f914f9d1c78 EFLAGS: 00000246 ORIG_RAX: 00000000000001a9 RAX: ffffffffffffffda RBX: 00007f914f9d26d4 RCX: 000000000045c849 RDX: 0000000000000000 RSI: 00000000200000c0 RDI: 000000000000040a RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000003 R13: 0000000000000202 R14: 00000000004c4244 R15: 0000000000000004 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: 24195 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+0x297/0x4d0 kernel/sched/wait.c:86 Code: fb 01 00 00 45 31 f6 eb 13 66 2e 0f 1f 84 00 00 00 00 00 4d 39 fc 0f 84 e3 01 00 00 4c 89 fb 49 8d 6f e8 4c 89 f8 48 c1 e8 03 <80> 3c 10 00 74 12 48 89 df e8 3b 79 5a 00 48 ba 00 00 00 00 00 fc RSP: 0018:ffffc9001811fc00 EFLAGS: 00010046 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: dffffc0000000000 RSI: 0000000000000003 RDI: ffff888042024120 RBP: ffffffffffffffe8 R08: 0000000000000000 R09: ffffc9001811fc68 R10: fffff52003023f80 R11: 0000000000000000 R12: ffff888042024160 R13: 1ffff92003023f8d R14: 0000000000000000 R15: 0000000000000000 FS: 00007f914f9d2700(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffec7456238 CR3: 00000000a8212000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __wake_up_common_lock kernel/sched/wait.c:123 [inline] __wake_up+0xd4/0x150 kernel/sched/wait.c:142 io_cqring_ev_posted+0x9f/0x1c0 fs/io_uring.c:1150 io_poll_remove_all fs/io_uring.c:4343 [inline] io_ring_ctx_wait_and_kill+0x537/0xfd0 fs/io_uring.c:7223 io_uring_create fs/io_uring.c:7761 [inline] io_uring_setup fs/io_uring.c:7788 [inline] __do_sys_io_uring_setup fs/io_uring.c:7801 [inline] __se_sys_io_uring_setup+0x1e49/0x2650 fs/io_uring.c:7798 do_syscall_64+0xf3/0x1b0 arch/x86/entry/common.c:295 entry_SYSCALL_64_after_hwframe+0x49/0xb3 RIP: 0033:0x45c849 Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 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 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f914f9d1c78 EFLAGS: 00000246 ORIG_RAX: 00000000000001a9 RAX: ffffffffffffffda RBX: 00007f914f9d26d4 RCX: 000000000045c849 RDX: 0000000000000000 RSI: 00000000200000c0 RDI: 000000000000040a RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000003 R13: 0000000000000202 R14: 00000000004c4244 R15: 0000000000000004 Modules linked in: ---[ end trace 7283bc5a780650a2 ]--- RIP: 0010:__wake_up_common+0x297/0x4d0 kernel/sched/wait.c:86 Code: fb 01 00 00 45 31 f6 eb 13 66 2e 0f 1f 84 00 00 00 00 00 4d 39 fc 0f 84 e3 01 00 00 4c 89 fb 49 8d 6f e8 4c 89 f8 48 c1 e8 03 <80> 3c 10 00 74 12 48 89 df e8 3b 79 5a 00 48 ba 00 00 00 00 00 fc RSP: 0018:ffffc9001811fc00 EFLAGS: 00010046 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: dffffc0000000000 RSI: 0000000000000003 RDI: ffff888042024120 RBP: ffffffffffffffe8 R08: 0000000000000000 R09: ffffc9001811fc68 R10: fffff52003023f80 R11: 0000000000000000 R12: ffff888042024160 R13: 1ffff92003023f8d R14: 0000000000000000 R15: 0000000000000000 FS: 00007f914f9d2700(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffec7456238 CR3: 00000000a8212000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400