 worker_thread+0xa53/0xfc0
 kthread+0x388/0x470
 ret_from_fork+0x51e/0xb90
 ret_from_fork_asm+0x1a/0x30
------------[ cut here ]------------
kernel BUG at mm/filemap.c:859!
Oops: invalid opcode: 0000 [#1] SMP KASAN PTI
CPU: 1 UID: 0 PID: 7442 Comm: syz.3.309 Tainted: G             L      syzkaller #0 PREEMPT(full) 
Tainted: [L]=SOFTLOCKUP
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
RIP: 0010:__filemap_add_folio+0x11bc/0x1350
Code: 2a c5 ff 4c 89 e7 48 c7 c6 40 ae d7 8b e8 8c 85 27 ff 90 0f 0b e8 a4 2a c5 ff 4c 89 e7 48 c7 c6 e0 a2 d7 8b e8 75 85 27 ff 90 <0f> 0b e8 8d 2a c5 ff 4c 89 e7 48 c7 c6 40 ae d7 8b e8 5e 85 27 ff
RSP: 0018:ffffc900065275c0 EFLAGS: 00010246
RAX: cb02559967c84100 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 0000000000000007 RSI: ffffffff8defb9bb RDI: 00000000ffffffff
RBP: ffffc90006527740 R08: ffffffff9011d8b7 R09: 1ffffffff2023b16
R10: dffffc0000000000 R11: fffffbfff2023b17 R12: ffffea00045b5e00
R13: dffffc0000000000 R14: ffffea00045b5e08 R15: 0000000000000002
FS:  0000555572d23500(0000) GS:ffff8882a9454000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000110c4520b4 CR3: 00000001a37f4000 CR4: 00000000000006f0
Call Trace:
 <TASK>
 filemap_add_folio+0x264/0x530
 page_cache_ra_order+0x6b5/0xeb0
 do_sync_mmap_readahead+0x6ad/0x8e0
 filemap_fault+0x6e2/0x1320
 __do_fault+0x138/0x390
 do_pte_missing+0x5c4/0x3490
 handle_mm_fault+0x1bec/0x3310
 do_user_addr_fault+0xa73/0x1340
 exc_page_fault+0x6a/0xc0
 asm_exc_page_fault+0x26/0x30
RIP: 0033:0x7feae336d658
Code: 10 8a 0e 74 0a 0f b7 74 16 fe 66 89 74 17 fe 88 0f c3 8b 4c 16 fc 8b 36 89 4c 17 fc 89 37 c3 0f 1f 00 48 8b 4c 16 f8 48 8b 36 <48> 89 37 48 89 4c 17 f8 c3 0f 10 54 16 f0 0f 10 5c 16 e0 0f 11 07
RSP: 002b:00007ffdfbaa59f8 EFLAGS: 00010202
RAX: 00002000000001c0 RBX: 0000000000000004 RCX: 0072736d2f232f75
RDX: 000000000000000f RSI: 7570632f7665642f RDI: 00002000000001c0
RBP: fffffffffffffffe R08: 0000001b30c20000 R09: 0000000000000001
R10: 7ffffffffffffff0 R11: 0000000000000009 R12: 00007ffdfbaa5b20
R13: 00007feae3615fac R14: 00000000000207cc R15: 00007ffdfbaa5b00
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:__filemap_add_folio+0x11bc/0x1350
Code: 2a c5 ff 4c 89 e7 48 c7 c6 40 ae d7 8b e8 8c 85 27 ff 90 0f 0b e8 a4 2a c5 ff 4c 89 e7 48 c7 c6 e0 a2 d7 8b e8 75 85 27 ff 90 <0f> 0b e8 8d 2a c5 ff 4c 89 e7 48 c7 c6 40 ae d7 8b e8 5e 85 27 ff
RSP: 0018:ffffc900065275c0 EFLAGS: 00010246

RAX: cb02559967c84100 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 0000000000000007 RSI: ffffffff8defb9bb RDI: 00000000ffffffff
RBP: ffffc90006527740 R08: ffffffff9011d8b7 R09: 1ffffffff2023b16
R10: dffffc0000000000 R11: fffffbfff2023b17 R12: ffffea00045b5e00
R13: dffffc0000000000 R14: ffffea00045b5e08 R15: 0000000000000002
FS:  0000555572d23500(0000) GS:ffff88818de54000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000110c3e6279 CR3: 00000001a37f4000 CR4: 00000000000006f0
