general protection fault, probably for non-canonical address 0xdffffc0000000005: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x0000000000000028-0x000000000000002f]
CPU: 0 PID: 20889 Comm: syz-executor.0 Not tainted 5.14.0-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:sock_from_file+0x20/0x90 net/socket.c:505
Code: f5 ff ff ff c3 0f 1f 44 00 00 41 54 53 48 89 fb e8 45 bc 62 fa 48 8d 7b 28 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 75 4f 45 31 e4 48 81 7b 28 40 50 8a 8a 74 0c e8 18 bc
RSP: 0018:ffffc9000172f9e0 EFLAGS: 00010206
RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffc900019e2000
RDX: 0000000000000005 RSI: ffffffff87135a3b RDI: 0000000000000028
RBP: ffff88801721e000 R08: ffffffff899abcc0 R09: ffffffff81e31798
R10: 0000000000000027 R11: 000000000000001a R12: dffffc0000000000
R13: 1ffff11002e43c09 R14: 0000000000000003 R15: ffff88801721e000
FS:  0000000000000000(0000) GS:ffff8880b9c00000(0063) knlGS:00000000f5517b40
CS:  0010 DS: 002b ES: 002b CR0: 0000000080050033
CR2: 00000000f5517db0 CR3: 00000000b46c5000 CR4: 00000000001506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 io_send+0x91/0x580 fs/io_uring.c:4725
 io_issue_sqe+0xf7e/0x6ba0 fs/io_uring.c:6581
 __io_queue_sqe+0x90/0xb50 fs/io_uring.c:6864
 io_req_task_submit+0xbf/0x1b0 fs/io_uring.c:2218
 tctx_task_work+0x166/0x610 fs/io_uring.c:2143
 task_work_run+0xdd/0x1a0 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_fast_syscall_32+0x72/0xf0 arch/x86/entry/common.c:181
 do_fast_syscall_32+0x2f/0x70 arch/x86/entry/common.c:203
 entry_SYSENTER_compat_after_hwframe+0x4d/0x5c
RIP: 0023:0xf7f3e549
Code: 03 74 c0 01 10 05 03 74 b8 01 10 06 03 74 b4 01 10 07 03 74 b0 01 10 08 03 74 d8 01 00 00 00 00 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 8d b4 26 00 00 00 00 8d b4 26 00 00 00 00
RSP: 002b:00000000f55175fc EFLAGS: 00000296 ORIG_RAX: 00000000000001aa
RAX: 0000000000000002 RBX: 0000000000000003 RCX: 0000000000004508
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
Modules linked in:
---[ end trace e90e5cb827d14916 ]---
RIP: 0010:sock_from_file+0x20/0x90 net/socket.c:505
Code: f5 ff ff ff c3 0f 1f 44 00 00 41 54 53 48 89 fb e8 45 bc 62 fa 48 8d 7b 28 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 75 4f 45 31 e4 48 81 7b 28 40 50 8a 8a 74 0c e8 18 bc
RSP: 0018:ffffc9000172f9e0 EFLAGS: 00010206
RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffc900019e2000
RDX: 0000000000000005 RSI: ffffffff87135a3b RDI: 0000000000000028
RBP: ffff88801721e000 R08: ffffffff899abcc0 R09: ffffffff81e31798
R10: 0000000000000027 R11: 000000000000001a R12: dffffc0000000000
R13: 1ffff11002e43c09 R14: 0000000000000003 R15: ffff88801721e000
FS:  0000000000000000(0000) GS:ffff8880b9c00000(0063) knlGS:00000000f5517b40
CS:  0010 DS: 002b ES: 002b CR0: 0000000080050033
CR2: 00007f5213cd6000 CR3: 00000000b46c5000 CR4: 00000000001506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess), 3 bytes skipped:
   0:	ff c3                	inc    %ebx
   2:	0f 1f 44 00 00       	nopl   0x0(%rax,%rax,1)
   7:	41 54                	push   %r12
   9:	53                   	push   %rbx
   a:	48 89 fb             	mov    %rdi,%rbx
   d:	e8 45 bc 62 fa       	callq  0xfa62bc57
  12:	48 8d 7b 28          	lea    0x28(%rbx),%rdi
  16:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  1d:	fc ff df
  20:	48 89 fa             	mov    %rdi,%rdx
  23:	48 c1 ea 03          	shr    $0x3,%rdx
* 27:	80 3c 02 00          	cmpb   $0x0,(%rdx,%rax,1) <-- trapping instruction
  2b:	75 4f                	jne    0x7c
  2d:	45 31 e4             	xor    %r12d,%r12d
  30:	48 81 7b 28 40 50 8a 	cmpq   $0xffffffff8a8a5040,0x28(%rbx)
  37:	8a
  38:	74 0c                	je     0x46
  3a:	e8                   	.byte 0xe8
  3b:	18                   	.byte 0x18
  3c:	bc                   	.byte 0xbc