general protection fault, probably for non-canonical address 0xdffffc0000000004: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x0000000000000020-0x0000000000000027]
CPU: 0 PID: 10164 Comm: syz-executor.4 Not tainted 5.14.0-rc7-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:file_inode include/linux/fs.h:1304 [inline]
RIP: 0010:__io_file_supports_nowait+0x20/0x460 fs/io_uring.c:2733
Code: ba e1 ff eb ae 0f 1f 44 00 00 48 b8 00 00 00 00 00 fc ff df 41 54 55 53 48 89 fb 48 83 c7 20 48 89 fa 48 83 ec 08 48 c1 ea 03 <80> 3c 02 00 0f 85 83 03 00 00 48 b8 00 00 00 00 00 fc ff df 48 8b
RSP: 0018:ffffc9000413f950 EFLAGS: 00010202
RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 1ffff92000827f41
RDX: 0000000000000004 RSI: 0000000000000000 RDI: 0000000000000020
RBP: ffff888034908780 R08: 0000000000000000 R09: ffff8880349087b8
R10: ffff8880349087ca R11: 0000000000000000 R12: ffffc9000413fa28
R13: 0000000000000001 R14: 0000000000000000 R15: ffffc9000413fa78
FS:  00007f12b8548700(0000) GS:ffff8880b9e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000005680c0 CR3: 000000001e427000 CR4: 00000000001506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 io_file_supports_nowait fs/io_uring.c:2771 [inline]
 io_file_supports_nowait fs/io_uring.c:2764 [inline]
 io_read+0x3ae/0x1090 fs/io_uring.c:3388
 io_issue_sqe+0x1c8/0x5cc0 fs/io_uring.c:6291
 __io_queue_sqe+0x85/0x960 fs/io_uring.c:6586
 tctx_task_work+0x171/0x4b0 fs/io_uring.c:2090
 task_work_run+0xc0/0x160 kernel/task_work.c:164
 tracehook_notify_signal include/linux/tracehook.h:212 [inline]
 handle_signal_work kernel/entry/common.c:146 [inline]
 exit_to_user_mode_loop kernel/entry/common.c:172 [inline]
 exit_to_user_mode_prepare+0x256/0x290 kernel/entry/common.c:209
 __syscall_exit_to_user_mode_work kernel/entry/common.c:291 [inline]
 syscall_exit_to_user_mode+0x19/0x60 kernel/entry/common.c:302
 do_syscall_64+0x42/0xb0 arch/x86/entry/common.c:86
 entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x4665f9
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f12b8548188 EFLAGS: 00000246 ORIG_RAX: 00000000000001aa
RAX: 0000000000000200 RBX: 000000000056bf80 RCX: 00000000004665f9
RDX: 0000000000000000 RSI: 00000000000045f5 RDI: 0000000000000003
RBP: 00000000004bfcc4 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf80
R13: 00007fff78e614af R14: 00007f12b8548300 R15: 0000000000022000
Modules linked in:
---[ end trace 2c80a1c2b8f438cd ]---
RIP: 0010:file_inode include/linux/fs.h:1304 [inline]
RIP: 0010:__io_file_supports_nowait+0x20/0x460 fs/io_uring.c:2733
Code: ba e1 ff eb ae 0f 1f 44 00 00 48 b8 00 00 00 00 00 fc ff df 41 54 55 53 48 89 fb 48 83 c7 20 48 89 fa 48 83 ec 08 48 c1 ea 03 <80> 3c 02 00 0f 85 83 03 00 00 48 b8 00 00 00 00 00 fc ff df 48 8b
RSP: 0018:ffffc9000413f950 EFLAGS: 00010202

RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 1ffff92000827f41
RDX: 0000000000000004 RSI: 0000000000000000 RDI: 0000000000000020
RBP: ffff888034908780 R08: 0000000000000000 R09: ffff8880349087b8
R10: ffff8880349087ca R11: 0000000000000000 R12: ffffc9000413fa28
R13: 0000000000000001 R14: 0000000000000000 R15: ffffc9000413fa78
FS:  00007f12b8548700(0000) GS:ffff8880b9e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005589f00ad9a0 CR3: 000000001e427000 CR4: 00000000001506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
   0:	ba e1 ff eb ae       	mov    $0xaeebffe1,%edx
   5:	0f 1f 44 00 00       	nopl   0x0(%rax,%rax,1)
   a:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  11:	fc ff df
  14:	41 54                	push   %r12
  16:	55                   	push   %rbp
  17:	53                   	push   %rbx
  18:	48 89 fb             	mov    %rdi,%rbx
  1b:	48 83 c7 20          	add    $0x20,%rdi
  1f:	48 89 fa             	mov    %rdi,%rdx
  22:	48 83 ec 08          	sub    $0x8,%rsp
  26:	48 c1 ea 03          	shr    $0x3,%rdx
* 2a:	80 3c 02 00          	cmpb   $0x0,(%rdx,%rax,1) <-- trapping instruction
  2e:	0f 85 83 03 00 00    	jne    0x3b7
  34:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  3b:	fc ff df
  3e:	48                   	rex.W
  3f:	8b                   	.byte 0x8b