BUG: kernel NULL pointer dereference, address: 0000000000000000
#PF: supervisor instruction fetch in kernel mode
#PF: error_code(0x0010) - not-present page
PGD 95652067 P4D 95652067 PUD 9e78a067 PMD 0 
Oops: 0010 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 27885 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:ffffc900167b7830 EFLAGS: 00010246
RAX: 1ffffffff1108ff1 RBX: ffffffff88847f88 RCX: ffff88804583ba08
RDX: 00000000000000fc RSI: 0000000020000180 RDI: ffff8880a885a2c0
RBP: ffff888090718408 R08: ffffffff81d651f1 R09: fffffbfff131e02e
R10: fffffbfff131e02e R11: 0000000000000000 R12: 00000000000000fc
R13: 0000000020000180 R14: 0000000000000000 R15: 00000000000000fc
FS:  0000000000000000(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffffffffffffd6 CR3: 00000000a1fc8000 CR4: 00000000001526f0
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_write+0x71c/0xe90 fs/io_uring.c:3190
 io_issue_sqe+0x396f/0xb8c0 fs/io_uring.c:5530
 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 7a5522103418eee1 ]---
RIP: 0010:0x0
Code: Bad RIP value.
RSP: 0018:ffffc900167b7830 EFLAGS: 00010246
RAX: 1ffffffff1108ff1 RBX: ffffffff88847f88 RCX: ffff88804583ba08
RDX: 00000000000000fc RSI: 0000000020000180 RDI: ffff8880a885a2c0
RBP: ffff888090718408 R08: ffffffff81d651f1 R09: fffffbfff131e02e
R10: fffffbfff131e02e R11: 0000000000000000 R12: 00000000000000fc
R13: 0000000020000180 R14: 0000000000000000 R15: 00000000000000fc
FS:  0000000000000000(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000743138 CR3: 00000000a1fc8000 CR4: 00000000001526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400