BUG: kernel NULL pointer dereference, address: 0000000000000000
#PF: supervisor instruction fetch in kernel mode
#PF: error_code(0x0010) - not-present page
PGD 1de826067 P4D 1de826067 PUD 1dd603067 PMD 0 
Oops: 0010 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 8156 Comm: io_wqe_worker-0 Not tainted 5.8.0-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:0x0
Code: Bad RIP value.
RSP: 0018:ffffc90016aff990 EFLAGS: 00010246
RAX: 1ffffffff1108fee RBX: ffffffff88847f70 RCX: ffff8880a2bc9588
RDX: 0000000000000052 RSI: 0000000020000100 RDI: ffff88809ee15280
RBP: ffffc90016affaf8 R08: ffffffff81d61f21 R09: ffffffff81d4fc84
R10: 0000000000000021 R11: ffff88804e4483c0 R12: 0000000000000052
R13: 0000000020000100 R14: 0000000000000000 R15: 0000000000000052
FS:  0000000000000000(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffffffffffffd6 CR3: 00000001e2f76000 CR4: 00000000001506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 loop_rw_iter+0x33a/0x470 fs/io_uring.c:2847
 io_iter_do_read fs/io_uring.c:3052 [inline]
 io_read fs/io_uring.c:3085 [inline]
 io_issue_sqe+0x1f3d/0xb8c0 fs/io_uring.c:5520
 io_wq_submit_work+0x35e/0x590 fs/io_uring.c:5775
 io_worker_handle_work+0xf8f/0x1570 fs/io-wq.c:527
 io_wqe_worker+0x2ff/0x810 fs/io-wq.c:569
 kthread+0x37e/0x3a0 drivers/block/aoe/aoecmd.c:1234
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:294
Modules linked in:
CR2: 0000000000000000
---[ end trace 6ddeff73d5306a62 ]---
RIP: 0010:0x0
Code: Bad RIP value.
RSP: 0018:ffffc90016aff990 EFLAGS: 00010246
RAX: 1ffffffff1108fee RBX: ffffffff88847f70 RCX: ffff8880a2bc9588
RDX: 0000000000000052 RSI: 0000000020000100 RDI: ffff88809ee15280
RBP: ffffc90016affaf8 R08: ffffffff81d61f21 R09: ffffffff81d4fc84
R10: 0000000000000021 R11: ffff88804e4483c0 R12: 0000000000000052
R13: 0000000020000100 R14: 0000000000000000 R15: 0000000000000052
FS:  0000000000000000(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2f023000 CR3: 00000001e2f76000 CR4: 00000000001506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400