walk_pmd_range mm/pagewalk.c:130 [inline]
 walk_pud_range mm/pagewalk.c:224 [inline]
 walk_p4d_range mm/pagewalk.c:262 [inline]
 walk_pgd_range+0xc05/0x1f50 mm/pagewalk.c:303
 __walk_page_range+0x163/0x820 mm/pagewalk.c:410
 walk_page_range_vma+0x2c7/0xa20 mm/pagewalk.c:705
 madvise_pageout_page_range mm/madvise.c:624 [inline]
 madvise_pageout+0x257/0x540 mm/madvise.c:649
------------[ cut here ]------------
kernel BUG at mm/filemap.c:867!
Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI
CPU: 0 UID: 0 PID: 30641 Comm: syz.8.4307 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
RIP: 0010:__filemap_add_folio+0xf5b/0x11e0 mm/filemap.c:867
Code: 77 c8 ff 48 c7 c6 20 24 b9 8b 4c 89 ef e8 9d 28 11 00 90 0f 0b e8 a5 77 c8 ff 48 c7 c6 80 24 b9 8b 4c 89 ef e8 86 28 11 00 90 <0f> 0b e8 8e 77 c8 ff 90 0f 0b 90 e9 f2 fb ff ff e8 80 77 c8 ff 48
RSP: 0018:ffffc90005817810 EFLAGS: 00010293
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
RDX: ffff88804986c880 RSI: ffffffff81f3173a RDI: ffff88804986ccc4
RBP: 0000000000112cc0 R08: 0000000000000001 R09: 0000000000000001
R10: ffffffff90ab6b97 R11: 1ffffffff1cb9829 R12: 0000000000000002
R13: ffffea00011b8cc0 R14: 0000000000000000 R15: 000000000002c928
FS:  000055557c659500(0000) GS:ffff8880d66b5000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f77abdf5f98 CR3: 0000000036e28000 CR4: 0000000000352ef0
Call Trace:
 <TASK>
 filemap_add_folio+0x10e/0x220 mm/filemap.c:969
 ra_alloc_folio mm/readahead.c:448 [inline]
 page_cache_ra_order+0x5a7/0xd70 mm/readahead.c:506
 do_sync_mmap_readahead mm/filemap.c:3304 [inline]
 filemap_fault+0x152e/0x2930 mm/filemap.c:3445
 __do_fault+0x10d/0x490 mm/memory.c:5152
 do_shared_fault mm/memory.c:5637 [inline]
 do_fault mm/memory.c:5711 [inline]
 do_pte_missing+0x1a6/0x3ba0 mm/memory.c:4234
 handle_pte_fault mm/memory.c:6052 [inline]
 __handle_mm_fault+0x152a/0x2a50 mm/memory.c:6195
 handle_mm_fault+0x589/0xd10 mm/memory.c:6364
 do_user_addr_fault+0x60c/0x1370 arch/x86/mm/fault.c:1336
 handle_page_fault arch/x86/mm/fault.c:1476 [inline]
 exc_page_fault+0x5c/0xb0 arch/x86/mm/fault.c:1532
 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:623
RIP: 0033:0x7f77adb580c8
Code: 66 89 74 17 02 88 0f c3 c5 fa 6f 06 c5 fa 6f 4c 16 f0 c5 fa 7f 07 c5 fa 7f 4c 17 f0 c3 0f 1f 44 00 00 48 8b 4c 16 f8 48 8b 36 <48> 89 37 48 89 4c 17 f8 c3 62 e1 fe 28 6f 54 16 ff 62 e1 fe 28 6f
RSP: 002b:00007fffc6e59948 EFLAGS: 00010206
RAX: 0000200000000000 RBX: 0000000000000004 RCX: 00306d656d702f76
RDX: 000000000000000b RSI: 656d702f7665642f RDI: 0000200000000000
RBP: 00007f77addc7da0 R08: 0000001b2e320000 R09: 0000000000000001
R10: 0000000000000001 R11: 0000000000000009 R12: 00007f77addc618c
R13: 00007fffc6e59a40 R14: fffffffffffffffe R15: 00007fffc6e59a60
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:__filemap_add_folio+0xf5b/0x11e0 mm/filemap.c:867
Code: 77 c8 ff 48 c7 c6 20 24 b9 8b 4c 89 ef e8 9d 28 11 00 90 0f 0b e8 a5 77 c8 ff 48 c7 c6 80 24 b9 8b 4c 89 ef e8 86 28 11 00 90 <0f> 0b e8 8e 77 c8 ff 90 0f 0b 90 e9 f2 fb ff ff e8 80 77 c8 ff 48
RSP: 0018:ffffc90005817810 EFLAGS: 00010293
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
RDX: ffff88804986c880 RSI: ffffffff81f3173a RDI: ffff88804986ccc4
RBP: 0000000000112cc0 R08: 0000000000000001 R09: 0000000000000001
R10: ffffffff90ab6b97 R11: 1ffffffff1cb9829 R12: 0000000000000002
R13: ffffea00011b8cc0 R14: 0000000000000000 R15: 000000000002c928
FS:  000055557c659500(0000) GS:ffff8880d66b5000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f77abdf5f98 CR3: 0000000036e28000 CR4: 0000000000352ef0