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: 31584 Comm: syz-executor.1 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+0x22/0x80 net/socket.c:505
Code: f9 eb 86 0f 1f 44 00 00 41 57 41 56 53 49 89 fe 49 bf 00 00 00 00 00 fc ff df e8 09 5a 93 f9 49 8d 5e 28 48 89 d8 48 c1 e8 03 <42> 80 3c 38 00 74 08 48 89 df e8 4f 54 dd f9 48 c7 c0 80 c7 74 8b
RSP: 0018:ffffc90001e7f440 EFLAGS: 00010206
RAX: 0000000000000005 RBX: 0000000000000028 RCX: 0000000000040000
RDX: ffffc9000b870000 RSI: 000000000003ffff RDI: 0000000000040000
RBP: ffffc90001e7fc70 R08: 0000000000000001 R09: ffffffff81eeb181
R10: 0000000000000027 R11: ffff888090790000 R12: ffff888080f2e8c0
R13: 1ffff920003cfea4 R14: 0000000000000000 R15: dffffc0000000000
FS:  00007fe83641f700(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000201b3000 CR3: 000000002ca3b000 CR4: 00000000001506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 io_sendmsg fs/io_uring.c:4681 [inline]
 io_issue_sqe+0x1b4e/0x9280 fs/io_uring.c:6578
 __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:00007fe83641f188 EFLAGS: 00000246 ORIG_RAX: 00000000000001aa
RAX: 0000000000001000 RBX: 000000000056bf80 RCX: 00000000004665f9
RDX: 0000000000000000 RSI: 000000000000688c RDI: 0000000000000003
RBP: 00000000004bfcc4 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf80
R13: 00007ffcede406af R14: 00007fe83641f300 R15: 0000000000022000
Modules linked in:
---[ end trace 12ac9c612233128e ]---
RIP: 0010:sock_from_file+0x22/0x80 net/socket.c:505
Code: f9 eb 86 0f 1f 44 00 00 41 57 41 56 53 49 89 fe 49 bf 00 00 00 00 00 fc ff df e8 09 5a 93 f9 49 8d 5e 28 48 89 d8 48 c1 e8 03 <42> 80 3c 38 00 74 08 48 89 df e8 4f 54 dd f9 48 c7 c0 80 c7 74 8b
RSP: 0018:ffffc90001e7f440 EFLAGS: 00010206
RAX: 0000000000000005 RBX: 0000000000000028 RCX: 0000000000040000
----------------
Code disassembly (best guess):
   0:	f9                   	stc
   1:	eb 86                	jmp    0xffffff89
   3:	0f 1f 44 00 00       	nopl   0x0(%rax,%rax,1)
   8:	41 57                	push   %r15
   a:	41 56                	push   %r14
   c:	53                   	push   %rbx
   d:	49 89 fe             	mov    %rdi,%r14
  10:	49 bf 00 00 00 00 00 	movabs $0xdffffc0000000000,%r15
  17:	fc ff df
  1a:	e8 09 5a 93 f9       	callq  0xf9935a28
  1f:	49 8d 5e 28          	lea    0x28(%r14),%rbx
  23:	48 89 d8             	mov    %rbx,%rax
  26:	48 c1 e8 03          	shr    $0x3,%rax
* 2a:	42 80 3c 38 00       	cmpb   $0x0,(%rax,%r15,1) <-- trapping instruction
  2f:	74 08                	je     0x39
  31:	48 89 df             	mov    %rbx,%rdi
  34:	e8 4f 54 dd f9       	callq  0xf9dd5488
  39:	48 c7 c0 80 c7 74 8b 	mov    $0xffffffff8b74c780,%rax