general protection fault, probably for non-canonical address 0xdffffc0000000018: 0000 [#1] PREEMPT SMP KASAN NOPTI
KASAN: null-ptr-deref in range [0x00000000000000c0-0x00000000000000c7]
CPU: 0 PID: 4910 Comm: syz-executor.1 Not tainted 5.17.0-next-20220323 #1
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014
RIP: 0010:io_kill_timeouts+0x256/0x2bd
Code: 74 09 3c 03 7f 05 e8 86 4a 76 fd 49 8d bc 24 c0 00 00 00 b8 ff ff 37 00 44 8b ad 40 03 00 00 48 89 fa 48 c1 e0 2a 48 c1 ea 03 <8a> 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 09 84 d2 74 05 e8 be
RSP: 0018:ffff888040af7cf0 EFLAGS: 00010216
RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 0000000000000018 RSI: 0000000000000002 RDI: 00000000000000c0
RBP: ffff888019902000 R08: 0000000000000001 R09: ffffffff86a2283f
R10: fffffbfff0d44507 R11: 0000000000000001 R12: 0000000000000000
R13: 0000000000000000 R14: ffff888019902040 R15: dffffc0000000000
FS:  00007f1785908700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f26cf9c1018 CR3: 000000000958c000 CR4: 0000000000350ef0
Call Trace:
 <TASK>
 io_ring_ctx_wait_and_kill+0x17b/0x2d6
 io_uring_setup.cold+0xfc9/0x2592
 do_syscall_64+0x3b/0x90
 entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f1788392b19
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:00007f1785908108 EFLAGS: 00000202 ORIG_RAX: 00000000000001a9
RAX: ffffffffffffffda RBX: 00007f17884a5f60 RCX: 00007f1788392b19
RDX: 0000000020fff000 RSI: 0000000020000280 RDI: 00000000000078bb
RBP: 0000000020000280 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000000
R13: 0000000020fff000 R14: 0000000000000000 R15: 0000000020ffc000
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:io_kill_timeouts+0x256/0x2bd
Code: 74 09 3c 03 7f 05 e8 86 4a 76 fd 49 8d bc 24 c0 00 00 00 b8 ff ff 37 00 44 8b ad 40 03 00 00 48 89 fa 48 c1 e0 2a 48 c1 ea 03 <8a> 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 09 84 d2 74 05 e8 be
RSP: 0018:ffff888040af7cf0 EFLAGS: 00010216
RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 0000000000000018 RSI: 0000000000000002 RDI: 00000000000000c0
RBP: ffff888019902000 R08: 0000000000000001 R09: ffffffff86a2283f
R10: fffffbfff0d44507 R11: 0000000000000001 R12: 0000000000000000
R13: 0000000000000000 R14: ffff888019902040 R15: dffffc0000000000
FS:  00007f1785908700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f26cf9c1018 CR3: 000000000958c000 CR4: 0000000000350ef0
note: syz-executor.1[4910] exited with preempt_count 1
----------------
Code disassembly (best guess):
   0:	74 09                	je     0xb
   2:	3c 03                	cmp    $0x3,%al
   4:	7f 05                	jg     0xb
   6:	e8 86 4a 76 fd       	callq  0xfd764a91
   b:	49 8d bc 24 c0 00 00 	lea    0xc0(%r12),%rdi
  12:	00
  13:	b8 ff ff 37 00       	mov    $0x37ffff,%eax
  18:	44 8b ad 40 03 00 00 	mov    0x340(%rbp),%r13d
  1f:	48 89 fa             	mov    %rdi,%rdx
  22:	48 c1 e0 2a          	shl    $0x2a,%rax
  26:	48 c1 ea 03          	shr    $0x3,%rdx
* 2a:	8a 14 02             	mov    (%rdx,%rax,1),%dl <-- trapping instruction
  2d:	48 89 f8             	mov    %rdi,%rax
  30:	83 e0 07             	and    $0x7,%eax
  33:	83 c0 03             	add    $0x3,%eax
  36:	38 d0                	cmp    %dl,%al
  38:	7c 09                	jl     0x43
  3a:	84 d2                	test   %dl,%dl
  3c:	74 05                	je     0x43
  3e:	e8                   	.byte 0xe8
  3f:	be                   	.byte 0xbe