------------[ cut here ]------------
kernel BUG at mm/filemap.c:868!
Oops: invalid opcode: 0000 [#1] SMP KASAN PTI
CPU: 1 UID: 0 PID: 8096 Comm: syz.3.512 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+0x11ad/0x12f0
Code: 4b c9 ff 4c 89 e7 48 c7 c6 60 1c 54 8b e8 db 1a 33 ff 90 0f 0b e8 a3 4b c9 ff 4c 89 e7 48 c7 c6 40 13 54 8b e8 c4 1a 33 ff 90 <0f> 0b e8 8c 4b c9 ff 4c 89 e7 48 c7 c6 60 1c 54 8b e8 ad 1a 33 ff
RSP: 0018:ffffc90002daf6a0 EFLAGS: 00010246
RAX: cc7338c438212f00 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 0000000000000007 RSI: ffffffff8d531ee2 RDI: 00000000ffffffff
RBP: ffffc90002daf810 R08: ffffffff8f5cac37 R09: 1ffffffff1eb9586
R10: dffffc0000000000 R11: fffffbfff1eb9587 R12: ffffea0000ceaf80
R13: dffffc0000000000 R14: ffffea0000ceaf88 R15: 0000000000000002
FS:  000055558fcff500(0000) GS:ffff8881a417e000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055d8a1cf2000 CR3: 0000000110ec4000 CR4: 00000000000006f0
Call Trace:
 <TASK>
 filemap_add_folio+0xd5/0x270
 page_cache_ra_order+0x643/0xd40
 do_sync_mmap_readahead+0x25e/0x7a0
 filemap_fault+0x62c/0x1200
 __do_fault+0x138/0x390
 __handle_mm_fault+0x1847/0x5440
 handle_mm_fault+0x40a/0x8e0
 do_user_addr_fault+0xa81/0x1390
 exc_page_fault+0x76/0xf0
 asm_exc_page_fault+0x26/0x30
RIP: 0033:0x7fc1daf58918
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:00007fff4aa5c218 EFLAGS: 00010246
RAX: 0000200000000000 RBX: 0000000000000004 RCX: 0030656c69662f2e
RDX: 0000000000000008 RSI: 0030656c69662f2e RDI: 0000200000000000
RBP: 00007fc1db1d7da0 R08: 0000001b2e120000 R09: 0000000000000001
R10: 0000000000000001 R11: 0000000000000009 R12: 00007fc1db1d618c
R13: 00007fff4aa5c310 R14: fffffffffffffffe R15: 00007fff4aa5c330
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:__filemap_add_folio+0x11ad/0x12f0
Code: 4b c9 ff 4c 89 e7 48 c7 c6 60 1c 54 8b e8 db 1a 33 ff 90 0f 0b e8 a3 4b c9 ff 4c 89 e7 48 c7 c6 40 13 54 8b e8 c4 1a 33 ff 90 <0f> 0b e8 8c 4b c9 ff 4c 89 e7 48 c7 c6 60 1c 54 8b e8 ad 1a 33 ff
RSP: 0018:ffffc90002daf6a0 EFLAGS: 00010246

RAX: cc7338c438212f00 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 0000000000000007 RSI: ffffffff8d531ee2 RDI: 00000000ffffffff
RBP: ffffc90002daf810 R08: ffffffff8f5cac37 R09: 1ffffffff1eb9586
R10: dffffc0000000000 R11: fffffbfff1eb9587 R12: ffffea0000ceaf80
R13: dffffc0000000000 R14: ffffea0000ceaf88 R15: 0000000000000002
