INFO: trying to register non-static key.
the code is fine but needs lockdep annotation.
turning off the locking correctness validator.
CPU: 0 PID: 8622 Comm: syz-executor.3 Not tainted 5.5.0-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+0x128/0x182 lib/dump_stack.c:118
 assign_lock_key kernel/locking/lockdep.c:880 [inline]
 register_lock_class+0x18a5/0x1a50 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
 prepare_to_wait_event+0x65/0x650 kernel/sched/wait.c:280
 uhid_char_read+0x246/0x5cb drivers/hid/uhid.c:669
 do_loop_readv_writev fs/read_write.c:714 [inline]
 do_iter_read+0x360/0x580 fs/read_write.c:935
 vfs_readv+0xc7/0x130 fs/read_write.c:997
 do_readv+0x20e/0x280 fs/read_write.c:1034
 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:00007fc3eaf14c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000013
RAX: ffffffffffffffda RBX: 00007fc3eaf156d4 RCX: 000000000045c849
RDX: 0000000000000002 RSI: 0000000020001680 RDI: 0000000000000003
RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff
R13: 0000000000000886 R14: 00000000004cb18c R15: 000000000076bf0c
list_del corruption. prev->next should be ffffc90003187bb0, but was 0000000000000000
------------[ cut here ]------------
kernel BUG at lib/list_debug.c:53!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 8622 Comm: syz-executor.3 Not tainted 5.5.0-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:__list_del_entry_valid.cold.1+0x48/0x4d lib/list_debug.c:51
Code: 4e 8d 87 e8 db 90 11 fe 0f 0b 48 89 de 48 c7 c7 c0 4f 8d 87 e8 ca 90 11 fe 0f 0b 48 89 de 48 c7 c7 60 4f 8d 87 e8 b9 90 11 fe <0f> 0b cc cc cc 41 57 41 56 41 55 41 54 55 48 bd 00 00 00 00 00 fc
RSP: 0018:ffffc90003187a48 EFLAGS: 00010086
RAX: 0000000000000054 RBX: ffffc90003187bb0 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000007 RDI: ffffffff8b3d6360
RBP: ffff88807bde11f8 R08: ffffed1015d045c9 R09: ffffed1015d045c9
R10: ffffed1015d045c8 R11: ffff8880ae822e43 R12: ffff88807bde11f8
R13: ffff88807bde11c0 R14: ffffc90003187bb0 R15: 0000000000000001
FS:  00007fc3eaf15700(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000815fd0 CR3: 00000000a03b8000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 __list_del_entry include/linux/list.h:131 [inline]
 list_del_init include/linux/list.h:190 [inline]
 prepare_to_wait_event+0x1d4/0x650 kernel/sched/wait.c:294
 uhid_char_read+0x246/0x5cb drivers/hid/uhid.c:669
 do_loop_readv_writev fs/read_write.c:714 [inline]
 do_iter_read+0x360/0x580 fs/read_write.c:935
 vfs_readv+0xc7/0x130 fs/read_write.c:997
 do_readv+0x20e/0x280 fs/read_write.c:1034
 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:00007fc3eaf14c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000013
RAX: ffffffffffffffda RBX: 00007fc3eaf156d4 RCX: 000000000045c849
RDX: 0000000000000002 RSI: 0000000020001680 RDI: 0000000000000003
RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff
R13: 0000000000000886 R14: 00000000004cb18c R15: 000000000076bf0c
Modules linked in:
---[ end trace 1fb4ca2f099b84c2 ]---
RIP: 0010:__list_del_entry_valid.cold.1+0x48/0x4d lib/list_debug.c:51
Code: 4e 8d 87 e8 db 90 11 fe 0f 0b 48 89 de 48 c7 c7 c0 4f 8d 87 e8 ca 90 11 fe 0f 0b 48 89 de 48 c7 c7 60 4f 8d 87 e8 b9 90 11 fe <0f> 0b cc cc cc 41 57 41 56 41 55 41 54 55 48 bd 00 00 00 00 00 fc
RSP: 0018:ffffc90003187a48 EFLAGS: 00010086
RAX: 0000000000000054 RBX: ffffc90003187bb0 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000007 RDI: ffffffff8b3d6360
RBP: ffff88807bde11f8 R08: ffffed1015d045c9 R09: ffffed1015d045c9
R10: ffffed1015d045c8 R11: ffff8880ae822e43 R12: ffff88807bde11f8
R13: ffff88807bde11c0 R14: ffffc90003187bb0 R15: 0000000000000001
FS:  00007fc3eaf15700(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000815fd0 CR3: 00000000a03b8000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400