 task_work_run+0x1d9/0x270
 exit_to_user_mode_loop+0xf3/0x4d0
 do_syscall_64+0x33e/0xf80
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
------------[ cut here ]------------
kernel BUG at mm/filemap.c:860!
Oops: invalid opcode: 0000 [#1] SMP KASAN PTI
CPU: 0 UID: 0 PID: 17232 Comm: syz.8.1512 Not tainted syzkaller #0 PREEMPT(full) 
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/0x1330
Code: 2e c3 ff 4c 89 e7 48 c7 c6 20 b6 d7 8b e8 7c 7a 25 ff 90 0f 0b e8 34 2e c3 ff 4c 89 e7 48 c7 c6 80 aa d7 8b e8 65 7a 25 ff 90 <0f> 0b e8 1d 2e c3 ff 4c 89 e7 48 c7 c6 20 b6 d7 8b e8 4e 7a 25 ff
RSP: 0018:ffffc90004c4f5c0 EFLAGS: 00010246
RAX: c3f89ac62518e000 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 0000000000000007 RSI: ffffffff8dfa6837 RDI: 00000000ffffffff
RBP: ffffc90004c4f740 R08: ffffffff9030b6f7 R09: 1ffffffff20616de
R10: dffffc0000000000 R11: fffffbfff20616df R12: ffffea0005abbe40
R13: dffffc0000000000 R14: ffffea0005abbe48 R15: 0000000000000001
FS:  000055558dafa500(0000) GS:ffff88818dc8d000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000562024de8000 CR3: 00000001926e2000 CR4: 00000000000006f0
Call Trace:
 <TASK>
 filemap_add_folio+0x264/0x530
 page_cache_ra_order+0x6a9/0xe80
 do_sync_mmap_readahead+0x6ad/0x8e0
 filemap_fault+0x703/0x1300
 __do_fault+0x138/0x2a0
 do_pte_missing+0x601/0x33f0
 handle_mm_fault+0x1bd7/0x3170
 do_user_addr_fault+0xa73/0x1340
 exc_page_fault+0x6a/0xc0
 asm_exc_page_fault+0x26/0x30
RIP: 0033:0x7f29acc727f7
Code: 83 ea 01 48 d3 e2 44 89 c1 49 d3 e1 f7 d2 89 c1 22 17 49 f7 d1 89 d0 4c 21 ce 48 d3 e6 09 f0 88 07 c3 90 48 85 d2 75 98 89 f0 <88> 07 c3 48 89 d7 e8 6e 22 fe ff 66 2e 0f 1f 84 00 00 00 00 00 66
RSP: 002b:00007ffecd51ca18 EFLAGS: 00010246
RAX: 000000000000003a RBX: 0000000000000001 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 000000000000003a RDI: 0000200000000cc0
RBP: 00007ffecd51cb40 R08: 0000000000000000 R09: 0000000000000000
R10: 000000000000003a R11: 0000000000000000 R12: 00007ffecd51cb80
R13: 00007f29ad01609c R14: 000000000007c6ee R15: 00007f29ad016090
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:__filemap_add_folio+0x11bc/0x1330
Code: 2e c3 ff 4c 89 e7 48 c7 c6 20 b6 d7 8b e8 7c 7a 25 ff 90 0f 0b e8 34 2e c3 ff 4c 89 e7 48 c7 c6 80 aa d7 8b e8 65 7a 25 ff 90 <0f> 0b e8 1d 2e c3 ff 4c 89 e7 48 c7 c6 20 b6 d7 8b e8 4e 7a 25 ff
RSP: 0018:ffffc90004c4f5c0 EFLAGS: 00010246
RAX: c3f89ac62518e000 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 0000000000000007 RSI: ffffffff8dfa6837 RDI: 00000000ffffffff
RBP: ffffc90004c4f740 R08: ffffffff9030b6f7 R09: 1ffffffff20616de
R10: dffffc0000000000 R11: fffffbfff20616df R12: ffffea0005abbe40
R13: dffffc0000000000 R14: ffffea0005abbe48 R15: 0000000000000001
FS:  000055558dafa500(0000) GS:ffff88818dc8d000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f627f21f440 CR3: 00000001926e2000 CR4: 00000000000006f0
