general protection fault, probably for non-canonical address 0xdffffc0000000002: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x0000000000000010-0x0000000000000017]
CPU: 1 PID: 17522 Comm: syz-executor.5 Not tainted 6.2.0-rc8-syzkaller-00134-g38f8ccde04a3 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/21/2023
RIP: 0010:task_cpu include/linux/sched.h:2233 [inline]
RIP: 0010:__io_uring_show_fdinfo+0xa28/0x17a0 io_uring/fdinfo.c:148
Code: 10 48 c7 c6 40 ae 37 8b e8 25 f7 54 f7 43 80 3c 2c 00 74 08 4c 89 f7 e8 96 81 3b f7 49 8b 1e 48 83 c3 14 48 89 d8 48 c1 e8 03 <42> 8a 04 28 84 c0 0f 85 3b 0d 00 00 8b 1b 4c 8b 64 24 10 eb 23 e8
RSP: 0018:ffffc9000610f740 EFLAGS: 00010203
RAX: 0000000000000002 RBX: 0000000000000014 RCX: 0000000000040000
RDX: ffffc9000b04a000 RSI: 000000000003ffff RDI: 0000000000040000
RBP: ffffc9000610f8a8 R08: ffffffff81fa8430 R09: ffffed1006e39d1b
R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff11005b37e95
R13: dffffc0000000000 R14: ffff88802d9bf4a8 R15: ffff88802de785a0
FS:  00007f8679bca700(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f76783fe000 CR3: 0000000020bc6000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 io_uring_show_fdinfo+0x17b/0x410 io_uring/fdinfo.c:214
 seq_show+0x597/0x6d0 fs/proc/fd.c:69
 seq_read_iter+0x43e/0xd10 fs/seq_file.c:230
 seq_read+0x28d/0x380 fs/seq_file.c:162
 do_iter_read+0x500/0xc70 fs/read_write.c:798
 vfs_readv fs/read_write.c:916 [inline]
 do_preadv+0x212/0x350 fs/read_write.c:1008
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f8678e8c0f9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 19 00 00 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 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f8679bca168 EFLAGS: 00000246 ORIG_RAX: 0000000000000127
RAX: ffffffffffffffda RBX: 00007f8678fabf80 RCX: 00007f8678e8c0f9
RDX: 0000000000000008 RSI: 0000000020001580 RDI: 0000000000000004
RBP: 00007f8678ee7ae9 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffc43d18eff R14: 00007f8679bca300 R15: 0000000000022000
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:task_cpu include/linux/sched.h:2233 [inline]
RIP: 0010:__io_uring_show_fdinfo+0xa28/0x17a0 io_uring/fdinfo.c:148
Code: 10 48 c7 c6 40 ae 37 8b e8 25 f7 54 f7 43 80 3c 2c 00 74 08 4c 89 f7 e8 96 81 3b f7 49 8b 1e 48 83 c3 14 48 89 d8 48 c1 e8 03 <42> 8a 04 28 84 c0 0f 85 3b 0d 00 00 8b 1b 4c 8b 64 24 10 eb 23 e8
RSP: 0018:ffffc9000610f740 EFLAGS: 00010203
RAX: 0000000000000002 RBX: 0000000000000014 RCX: 0000000000040000
RDX: ffffc9000b04a000 RSI: 000000000003ffff RDI: 0000000000040000
RBP: ffffc9000610f8a8 R08: ffffffff81fa8430 R09: ffffed1006e39d1b
R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff11005b37e95
R13: dffffc0000000000 R14: ffff88802d9bf4a8 R15: ffff88802de785a0
FS:  00007f8679bca700(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fe8d677bf00 CR3: 0000000020bc6000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
   0:	10 48 c7             	adc    %cl,-0x39(%rax)
   3:	c6 40 ae 37          	movb   $0x37,-0x52(%rax)
   7:	8b e8                	mov    %eax,%ebp
   9:	25 f7 54 f7 43       	and    $0x43f754f7,%eax
   e:	80 3c 2c 00          	cmpb   $0x0,(%rsp,%rbp,1)
  12:	74 08                	je     0x1c
  14:	4c 89 f7             	mov    %r14,%rdi
  17:	e8 96 81 3b f7       	callq  0xf73b81b2
  1c:	49 8b 1e             	mov    (%r14),%rbx
  1f:	48 83 c3 14          	add    $0x14,%rbx
  23:	48 89 d8             	mov    %rbx,%rax
  26:	48 c1 e8 03          	shr    $0x3,%rax
* 2a:	42 8a 04 28          	mov    (%rax,%r13,1),%al <-- trapping instruction
  2e:	84 c0                	test   %al,%al
  30:	0f 85 3b 0d 00 00    	jne    0xd71
  36:	8b 1b                	mov    (%rbx),%ebx
  38:	4c 8b 64 24 10       	mov    0x10(%rsp),%r12
  3d:	eb 23                	jmp    0x62
  3f:	e8                   	.byte 0xe8