input: syz1 as /devices/virtual/input/input118
BUG: unable to handle page fault for address: fffffffffffffff8
#PF: supervisor read access in kernel mode
#PF: error_code(0x0000) - not-present page
PGD 7012067 P4D 7012067 PUD 7014067 PMD 0 
Oops: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 767 Comm: syz.2.131 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
RIP: 0010:swake_up_locked kernel/sched/swait.c:29 [inline]
RIP: 0010:complete+0x9e/0x1c0 kernel/sched/completion.c:36
Code: e7 e8 36 99 63 00 4d 8b 3c 24 4d 39 e7 0f 84 d4 00 00 00 49 8d 7f f8 48 89 f8 48 c1 e8 03 42 80 3c 30 00 74 05 e8 12 99 63 00 <49> 8b 7f f8 e8 79 b4 f9 ff 4c 89 ff e8 01 1e 1a 01 84 c0 74 74 49
RSP: 0018:ffffc900018d7c98 EFLAGS: 00010046
RAX: 1fffffffffffffff RBX: ffffc90001907a78 RCX: 0000000000000001
RDX: 0000000000000001 RSI: 0000000000000004 RDI: fffffffffffffff8
RBP: ffffc900018d7cd0 R08: 0000000000000003 R09: 0000000000000004
R10: dffffc0000000000 R11: fffff5200031af80 R12: ffffc90001907a80
R13: 0000000000000001 R14: dffffc0000000000 R15: 0000000000000000
FS:  00007fee56e406c0(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: fffffffffffffff8 CR3: 0000000115caf000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 uinput_flush_requests drivers/input/misc/uinput.c:213 [inline]
 uinput_destroy_device+0x129/0x8e0 drivers/input/misc/uinput.c:298
 uinput_release+0x3e/0x50 drivers/input/misc/uinput.c:758
 __fput+0x1fc/0x8f0 fs/file_table.c:320
 ____fput+0x15/0x20 fs/file_table.c:348
 task_work_run+0x1e1/0x250 kernel/task_work.c:203
 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]
 exit_to_user_mode_loop+0x9b/0xb0 kernel/entry/common.c:177
 exit_to_user_mode_prepare+0x87/0xd0 kernel/entry/common.c:210
 __syscall_exit_to_user_mode_work kernel/entry/common.c:292 [inline]
 syscall_exit_to_user_mode+0x1a/0x30 kernel/entry/common.c:303
 do_syscall_64+0x58/0xa0 arch/x86/entry/common.c:82
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7fee55f9bf79
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fee56e40028 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: 0000000000000000 RBX: 00007fee56215fa0 RCX: 00007fee55f9bf79
RDX: 0000000000000000 RSI: 0000000000005501 RDI: 0000000000000004
RBP: 00007fee560327e0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fee56216038 R14: 00007fee56215fa0 R15: 00007ffdd7a09968
 </TASK>
Modules linked in:
CR2: fffffffffffffff8
---[ end trace 0000000000000000 ]---
RIP: 0010:swake_up_locked kernel/sched/swait.c:29 [inline]
RIP: 0010:complete+0x9e/0x1c0 kernel/sched/completion.c:36
Code: e7 e8 36 99 63 00 4d 8b 3c 24 4d 39 e7 0f 84 d4 00 00 00 49 8d 7f f8 48 89 f8 48 c1 e8 03 42 80 3c 30 00 74 05 e8 12 99 63 00 <49> 8b 7f f8 e8 79 b4 f9 ff 4c 89 ff e8 01 1e 1a 01 84 c0 74 74 49
RSP: 0018:ffffc900018d7c98 EFLAGS: 00010046
RAX: 1fffffffffffffff RBX: ffffc90001907a78 RCX: 0000000000000001
RDX: 0000000000000001 RSI: 0000000000000004 RDI: fffffffffffffff8
RBP: ffffc900018d7cd0 R08: 0000000000000003 R09: 0000000000000004
R10: dffffc0000000000 R11: fffff5200031af80 R12: ffffc90001907a80
R13: 0000000000000001 R14: dffffc0000000000 R15: 0000000000000000
FS:  00007fee56e406c0(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: fffffffffffffff8 CR3: 0000000115caf000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
   0:	e7 e8                	out    %eax,$0xe8
   2:	36 99                	ss cltd
   4:	63 00                	movsxd (%rax),%eax
   6:	4d 8b 3c 24          	mov    (%r12),%r15
   a:	4d 39 e7             	cmp    %r12,%r15
   d:	0f 84 d4 00 00 00    	je     0xe7
  13:	49 8d 7f f8          	lea    -0x8(%r15),%rdi
  17:	48 89 f8             	mov    %rdi,%rax
  1a:	48 c1 e8 03          	shr    $0x3,%rax
  1e:	42 80 3c 30 00       	cmpb   $0x0,(%rax,%r14,1)
  23:	74 05                	je     0x2a
  25:	e8 12 99 63 00       	call   0x63993c
* 2a:	49 8b 7f f8          	mov    -0x8(%r15),%rdi <-- trapping instruction
  2e:	e8 79 b4 f9 ff       	call   0xfff9b4ac
  33:	4c 89 ff             	mov    %r15,%rdi
  36:	e8 01 1e 1a 01       	call   0x11a1e3c
  3b:	84 c0                	test   %al,%al
  3d:	74 74                	je     0xb3
  3f:	49                   	rex.WB