process_scheduled_works kernel/workqueue.c:3340 [inline]
 worker_thread+0x5da/0xe40 kernel/workqueue.c:3421
 kthread+0x3b3/0x730 kernel/kthread.c:463
 ret_from_fork+0x754/0xaf0 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:246
------------[ cut here ]------------
kernel BUG at mm/filemap.c:858!
Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI
CPU: 3 UID: 0 PID: 6152 Comm: syz.2.39 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
RIP: 0010:__filemap_add_folio+0xf7f/0x1220 mm/filemap.c:858
Code: cb c6 ff 48 c7 c6 a0 18 9d 8b 4c 89 ef e8 29 0e 12 00 90 0f 0b e8 01 cb c6 ff 48 c7 c6 00 19 9d 8b 4c 89 ef e8 12 0e 12 00 90 <0f> 0b e8 ea ca c6 ff 90 0f 0b 90 e9 9b fe ff ff e8 dc ca c6 ff 90
RSP: 0018:ffffc9000425f808 EFLAGS: 00010293
RAX: 0000000000000000 RBX: 0000000000112cc0 RCX: 0000000000000000
RDX: ffff888055894980 RSI: ffffffff82523f08 RDI: ffff888055894e04
RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000002 R12: 0000000000000002
R13: ffffea00015a2640 R14: 0000000000000000 R15: 1ffff9200084bf2b
FS:  00005555745f3500(0000) GS:ffff8880d68d9000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f08428708c0 CR3: 0000000022ab9000 CR4: 0000000000352ef0
Call Trace:
 <TASK>
 filemap_add_folio+0x1d8/0x690 mm/filemap.c:966
 ra_alloc_folio mm/readahead.c:453 [inline]
 page_cache_ra_order+0x614/0xfe0 mm/readahead.c:512
 do_sync_mmap_readahead mm/filemap.c:3400 [inline]
 filemap_fault+0x1b56/0x37c0 mm/filemap.c:3549
 __do_fault+0x10d/0x550 mm/memory.c:5323
 do_shared_fault mm/memory.c:5822 [inline]
 do_fault+0x2db/0x1990 mm/memory.c:5896
 do_pte_missing mm/memory.c:4404 [inline]
 handle_pte_fault mm/memory.c:6276 [inline]
 __handle_mm_fault+0x1807/0x2b50 mm/memory.c:6414
 handle_mm_fault+0x36d/0xa20 mm/memory.c:6583
 do_user_addr_fault+0x5a3/0x12f0 arch/x86/mm/fault.c:1334
 handle_page_fault arch/x86/mm/fault.c:1474 [inline]
 exc_page_fault+0x6f/0xd0 arch/x86/mm/fault.c:1527
 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:618
RIP: 0033:0x7f7a9d0646e2
Code: 30 48 8b 14 24 48 85 d2 74 17 8b 44 24 10 0f c8 89 c0 48 89 44 24 10 48 83 fa 01 0f 85 aa 02 00 00 48 8b 44 24 18 8b 74 24 10 <89> 30 e9 1e fe ff ff 48 8b 44 24 18 8b 10 48 8b 04 24 48 85 c0 0f
RSP: 002b:00007fff0d815880 EFLAGS: 00010246
RAX: 00002000000001c0 RBX: 0000000000000004 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000008000 RDI: 00005555745f33d8
RBP: 00007fff0d8159a0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000008000 R11: 0000000000000002 R12: 00007fff0d8159e0
R13: 00007f7a9d41609c R14: 000000000000dff9 R15: 00007fff0d8159c0
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:__filemap_add_folio+0xf7f/0x1220 mm/filemap.c:858
Code: cb c6 ff 48 c7 c6 a0 18 9d 8b 4c 89 ef e8 29 0e 12 00 90 0f 0b e8 01 cb c6 ff 48 c7 c6 00 19 9d 8b 4c 89 ef e8 12 0e 12 00 90 <0f> 0b e8 ea ca c6 ff 90 0f 0b 90 e9 9b fe ff ff e8 dc ca c6 ff 90
RSP: 0018:ffffc9000425f808 EFLAGS: 00010293
RAX: 0000000000000000 RBX: 0000000000112cc0 RCX: 0000000000000000
RDX: ffff888055894980 RSI: ffffffff82523f08 RDI: ffff888055894e04
RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000002 R12: 0000000000000002
R13: ffffea00015a2640 R14: 0000000000000000 R15: 1ffff9200084bf2b
FS:  00005555745f3500(0000) GS:ffff8880d68d9000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f08428708c0 CR3: 0000000022ab9000 CR4: 0000000000352ef0