general protection fault, probably for non-canonical address 0xdffffc0000000004: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x0000000000000020-0x0000000000000027]
CPU: 1 PID: 11359 Comm: syz-executor.2 Not tainted 5.14.0-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:file_inode include/linux/fs.h:1350 [inline]
RIP: 0010:__io_file_supports_nowait+0x28/0x3e0 fs/io_uring.c:2785
Code: 66 90 55 41 57 41 56 41 54 53 41 89 f6 49 89 ff 49 bc 00 00 00 00 00 fc ff df e8 e3 06 91 ff 49 8d 5f 20 48 89 d8 48 c1 e8 03 <42> 80 3c 20 00 74 08 48 89 df e8 e9 3b db ff 48 8b 2b 48 89 e8 48
RSP: 0018:ffffc9001029f430 EFLAGS: 00010202
RAX: 0000000000000004 RBX: 0000000000000020 RCX: 0000000000040000
RDX: ffffc9000d498000 RSI: 000000000003ffff RDI: 0000000000040000
RBP: ffffc9001029fc70 R08: ffffffff81ef101b R09: ffffffff81ef0371
R10: 0000000000000027 R11: ffff88808a710000 R12: dffffc0000000000
R13: 1ffff1100ebcc153 R14: 0000000000000000 R15: 0000000000000000
FS:  00007f83ececa700(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000000056c030 CR3: 000000003e837000 CR4: 00000000001506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 io_file_supports_nowait fs/io_uring.c:2823 [inline]
 io_read fs/io_uring.c:3440 [inline]
 io_issue_sqe+0xed3/0x9280 fs/io_uring.c:6558
 __io_queue_sqe+0xe3/0x1000 fs/io_uring.c:6864
 tctx_task_work+0x2ad/0x560 fs/io_uring.c:2143
 task_work_run+0x146/0x1c0 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+0x180/0x220 kernel/entry/common.c:209
 __syscall_exit_to_user_mode_work kernel/entry/common.c:291 [inline]
 syscall_exit_to_user_mode+0x26/0x60 kernel/entry/common.c:302
 do_syscall_64+0x4c/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:00007f83ececa188 EFLAGS: 00000246 ORIG_RAX: 00000000000001aa
RAX: 0000000000000002 RBX: 000000000056bf80 RCX: 00000000004665f9
RDX: 0000000000000000 RSI: 0000000000006b21 RDI: 0000000000000003
RBP: 00000000004bfcc4 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf80
R13: 00007ffccb89319f R14: 00007f83ececa300 R15: 0000000000022000
Modules linked in:
---[ end trace 4d95e48db7bb93c0 ]---
RIP: 0010:file_inode include/linux/fs.h:1350 [inline]
RIP: 0010:__io_file_supports_nowait+0x28/0x3e0 fs/io_uring.c:2785
Code: 66 90 55 41 57 41 56 41 54 53 41 89 f6 49 89 ff 49 bc 00 00 00 00 00 fc ff df e8 e3 06 91 ff 49 8d 5f 20 48 89 d8 48 c1 e8 03 <42> 80 3c 20 00 74 08 48 89 df e8 e9 3b db ff 48 8b 2b 48 89 e8 48
RSP: 0018:ffffc9001029f430 EFLAGS: 00010202
RAX: 0000000000000004 RBX: 0000000000000020 RCX: 0000000000040000
RDX: ffffc9000d498000 RSI: 000000000003ffff RDI: 0000000000040000
RBP: ffffc9001029fc70 R08: ffffffff81ef101b R09: ffffffff81ef0371
R10: 0000000000000027 R11: ffff88808a710000 R12: dffffc0000000000
R13: 1ffff1100ebcc153 R14: 0000000000000000 R15: 0000000000000000
FS:  00007f83ececa700(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000056515b13d160 CR3: 000000003e837000 CR4: 00000000001506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
   0:	66 90                	xchg   %ax,%ax
   2:	55                   	push   %rbp
   3:	41 57                	push   %r15
   5:	41 56                	push   %r14
   7:	41 54                	push   %r12
   9:	53                   	push   %rbx
   a:	41 89 f6             	mov    %esi,%r14d
   d:	49 89 ff             	mov    %rdi,%r15
  10:	49 bc 00 00 00 00 00 	movabs $0xdffffc0000000000,%r12
  17:	fc ff df
  1a:	e8 e3 06 91 ff       	callq  0xff910702
  1f:	49 8d 5f 20          	lea    0x20(%r15),%rbx
  23:	48 89 d8             	mov    %rbx,%rax
  26:	48 c1 e8 03          	shr    $0x3,%rax
* 2a:	42 80 3c 20 00       	cmpb   $0x0,(%rax,%r12,1) <-- trapping instruction
  2f:	74 08                	je     0x39
  31:	48 89 df             	mov    %rbx,%rdi
  34:	e8 e9 3b db ff       	callq  0xffdb3c22
  39:	48 8b 2b             	mov    (%rbx),%rbp
  3c:	48 89 e8             	mov    %rbp,%rax
  3f:	48                   	rex.W