process_one_work+0x9bf/0x16b0 kernel/workqueue.c:2297
 worker_thread+0x658/0x11f0 kernel/workqueue.c:2444
 kthread+0x3e5/0x4d0 kernel/kthread.c:319
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
------------[ cut here ]------------
kernel BUG at mm/page_alloc.c:1073!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 15538 Comm: kworker/u4:10 Not tainted 5.15.0-rc6-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: events_unbound io_ring_exit_work
RIP: 0010:__free_one_page+0xa10/0xe30 mm/page_alloc.c:1073
Code: 43 34 85 c0 0f 84 79 f9 ff ff 48 c7 c6 c0 1f 97 89 48 89 ef e8 a1 dd f6 ff 0f 0b 48 c7 c6 a0 1e 97 89 4c 89 ef e8 90 dd f6 ff <0f> 0b 0f 0b 48 c7 c6 00 1f 97 89 4c 89 ef e8 7d dd f6 ff 0f 0b 48
RSP: 0018:ffffc900171e7918 EFLAGS: 00010093
RAX: 0000000000000000 RBX: ffffc900171e7a10 RCX: 0000000000000000
RDX: ffff888022043900 RSI: ffffffff81b3d010 RDI: 0000000000000003
RBP: 0000000000091c00 R08: 0000000000000018 R09: 00000000ffffffff
R10: ffffffff88f5bc2f R11: 00000000ffffffff R12: 0000000000000009
R13: ffffea0002470000 R14: 0000000000000000 R15: ffff88813fffb700
FS:  0000000000000000(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 0000000032080000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 free_pcppages_bulk+0x533/0x8a0 mm/page_alloc.c:1537
 free_unref_page_commit.constprop.0+0x4cc/0x6f0 mm/page_alloc.c:3381
 free_unref_page+0x236/0x690 mm/page_alloc.c:3414
 io_mem_free.part.0+0xf7/0x140 fs/io_uring.c:8754
 io_mem_free fs/io_uring.c:8749 [inline]
 io_ring_ctx_free fs/io_uring.c:9298 [inline]
 io_ring_exit_work+0xf38/0x19a0 fs/io_uring.c:9449
 process_one_work+0x9bf/0x16b0 kernel/workqueue.c:2297
 worker_thread+0x658/0x11f0 kernel/workqueue.c:2444
 kthread+0x3e5/0x4d0 kernel/kthread.c:319
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
Modules linked in:
---[ end trace 4d18fd10258a7806 ]---
RIP: 0010:__free_one_page+0xa10/0xe30 mm/page_alloc.c:1073
Code: 43 34 85 c0 0f 84 79 f9 ff ff 48 c7 c6 c0 1f 97 89 48 89 ef e8 a1 dd f6 ff 0f 0b 48 c7 c6 a0 1e 97 89 4c 89 ef e8 90 dd f6 ff <0f> 0b 0f 0b 48 c7 c6 00 1f 97 89 4c 89 ef e8 7d dd f6 ff 0f 0b 48
RSP: 0018:ffffc900171e7918 EFLAGS: 00010093
RAX: 0000000000000000 RBX: ffffc900171e7a10 RCX: 0000000000000000
RDX: ffff888022043900 RSI: ffffffff81b3d010 RDI: 0000000000000003
RBP: 0000000000091c00 R08: 0000000000000018 R09: 00000000ffffffff
R10: ffffffff88f5bc2f R11: 00000000ffffffff R12: 0000000000000009
R13: ffffea0002470000 R14: 0000000000000000 R15: ffff88813fffb700
FS:  0000000000000000(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 0000000032080000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400