RAX: ffffffffffffffda RBX: 00007f47273a16d4 RCX: 000000000045c849
RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000910
RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000003
R13: 0000000000000202 R14: 00000000004c4244 R15: 0000000000000004
INFO: trying to register non-static key.
the code is fine but needs lockdep annotation.
turning off the locking correctness validator.
CPU: 1 PID: 8562 Comm: syz-executor.2 Not tainted 5.6.0-rc4-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+0x128/0x182 lib/dump_stack.c:118
 assign_lock_key kernel/locking/lockdep.c:880 [inline]
 register_lock_class+0x18a0/0x1a40 kernel/locking/lockdep.c:1189
 __lock_acquire+0x101/0x4370 kernel/locking/lockdep.c:3836
 lock_acquire+0x19b/0x420 kernel/locking/lockdep.c:4484
 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
 _raw_spin_lock_irqsave+0x95/0xc0 kernel/locking/spinlock.c:159
 __wake_up_common_lock+0xa8/0x120 kernel/sched/wait.c:122
 io_cqring_ev_posted+0x91/0x180 fs/io_uring.c:1097
 io_poll_remove_all fs/io_uring.c:3590 [inline]
 io_ring_ctx_wait_and_kill+0x2b0/0x990 fs/io_uring.c:6470
 io_uring_create fs/io_uring.c:6990 [inline]
 io_uring_setup+0x184b/0x1e10 fs/io_uring.c:7017
 do_syscall_64+0xc6/0x5e0 arch/x86/entry/common.c:294
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
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:00007f47273a0c78 EFLAGS: 00000246 ORIG_RAX: 00000000000001a9
RAX: ffffffffffffffda RBX: 00007f47273a16d4 RCX: 000000000045c849
RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000910
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: 8562 Comm: syz-executor.2 Not tainted 5.6.0-rc4-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:__wake_up_common+0xd6/0x610 kernel/sched/wait.c:86
Code: 14 05 00 00 4c 8b 43 38 49 83 e8 18 49 8d 78 18 48 39 fd 0f 84 50 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 0b 05 00 00 49 8b 40 18 89 54 24 10 31 db 49 bd
RSP: 0018:ffffc900043c7c30 EFLAGS: 00010046
RAX: dffffc0000000000 RBX: ffff8880a8428120 RCX: 0000000000000000
RDX: 0000000000000001 RSI: 0000000000000003 RDI: 0000000000000000
RBP: ffff8880a8428158 R08: ffffffffffffffe8 R09: ffffc900043c7cb8
R10: fffff52000878f80 R11: 0000000000000003 R12: ffffc900043c7cb8
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000003
FS:  00007f47273a1700(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f71346c7010 CR3: 00000000969df000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 __wake_up_common_lock+0xc3/0x120 kernel/sched/wait.c:123
 io_cqring_ev_posted+0x91/0x180 fs/io_uring.c:1097
 io_poll_remove_all fs/io_uring.c:3590 [inline]
 io_ring_ctx_wait_and_kill+0x2b0/0x990 fs/io_uring.c:6470
 io_uring_create fs/io_uring.c:6990 [inline]
 io_uring_setup+0x184b/0x1e10 fs/io_uring.c:7017
 do_syscall_64+0xc6/0x5e0 arch/x86/entry/common.c:294
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
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:00007f47273a0c78 EFLAGS: 00000246 ORIG_RAX: 00000000000001a9
RAX: ffffffffffffffda RBX: 00007f47273a16d4 RCX: 000000000045c849
RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000910
RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000003
R13: 0000000000000202 R14: 00000000004c4244 R15: 0000000000000004
Modules linked in:
---[ end trace e9dd66c588740021 ]---
RIP: 0010:__wake_up_common+0xd6/0x610 kernel/sched/wait.c:86
Code: 14 05 00 00 4c 8b 43 38 49 83 e8 18 49 8d 78 18 48 39 fd 0f 84 50 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 0b 05 00 00 49 8b 40 18 89 54 24 10 31 db 49 bd
RSP: 0018:ffffc900043c7c30 EFLAGS: 00010046
RAX: dffffc0000000000 RBX: ffff8880a8428120 RCX: 0000000000000000
RDX: 0000000000000001 RSI: 0000000000000003 RDI: 0000000000000000
RBP: ffff8880a8428158 R08: ffffffffffffffe8 R09: ffffc900043c7cb8
R10: fffff52000878f80 R11: 0000000000000003 R12: ffffc900043c7cb8
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000003
FS:  00007f47273a1700(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f71346c7010 CR3: 00000000969df000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400