do_dentry_open+0x597/0x1590 fs/open.c:939
 vfs_open+0x82/0x3f0 fs/open.c:1094
 do_open fs/namei.c:4637 [inline]
 path_openat+0x2078/0x3140 fs/namei.c:4796
 do_filp_open+0x20b/0x470 fs/namei.c:4823
 do_sys_openat2+0x121/0x290 fs/open.c:1430
------------[ cut here ]------------
kernel BUG at mm/filemap.c:858!
Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI
CPU: 2 UID: 0 PID: 6193 Comm: syz.1.50 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+0xf29/0x11b0 mm/filemap.c:858
Code: 95 c6 ff 48 c7 c6 00 ee 99 8b 4c 89 ef e8 af 72 11 00 90 0f 0b e8 57 95 c6 ff 48 c7 c6 60 ee 99 8b 4c 89 ef e8 98 72 11 00 90 <0f> 0b e8 40 95 c6 ff 90 0f 0b 90 e9 1c fc ff ff e8 32 95 c6 ff 48
RSP: 0018:ffffc9000348f840 EFLAGS: 00010293
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
RDX: ffff888030b90000 RSI: ffffffff81f86688 RDI: ffff888030b90484
RBP: 0000000000112cc0 R08: 0000000000000001 R09: 0000000000000001
R10: ffffffff9088cdd7 R11: 0000000000000002 R12: 0000000000000002
R13: ffffea00009307c0 R14: 0000000000000000 R15: 0000000000000000
FS:  00005555769f6500(0000) GS:ffff8880d6af2000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000000980 CR3: 000000002adb8000 CR4: 0000000000352ef0
Call Trace:
 <TASK>
 filemap_add_folio+0x19a/0x610 mm/filemap.c:966
 ra_alloc_folio mm/readahead.c:453 [inline]
 page_cache_ra_order+0x637/0xed0 mm/readahead.c:512
 do_sync_mmap_readahead mm/filemap.c:3400 [inline]
 filemap_fault+0x16ac/0x29d0 mm/filemap.c:3549
 __do_fault+0x10d/0x490 mm/memory.c:5320
 do_shared_fault mm/memory.c:5819 [inline]
 do_fault+0x302/0x1ad0 mm/memory.c:5893
 do_pte_missing mm/memory.c:4401 [inline]
 handle_pte_fault mm/memory.c:6273 [inline]
 __handle_mm_fault+0x1919/0x2bb0 mm/memory.c:6411
 handle_mm_fault+0x3fe/0xad0 mm/memory.c:6580
 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+0x64/0xc0 arch/x86/mm/fault.c:1532
 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:618
RIP: 0033:0x7f302ea556b1
Code: 48 8b 54 24 08 48 85 d2 74 17 8b 44 24 18 0f c8 89 c0 48 89 44 24 18 48 83 fa 01 0f 85 b3 01 00 00 48 8b 44 24 10 8b 54 24 18 <89> 10 e9 15 fd ff ff 48 8b 44 24 10 8b 10 48 8b 44 24 08 48 85 c0
RSP: 002b:00007ffe0238cf40 EFLAGS: 00010246
RAX: 0000200000000980 RBX: 0000000000000004 RCX: 0000000000000000
RDX: 0000000000004000 RSI: 0000000000000000 RDI: 00005555769f63c8
RBP: 00007ffe0238d048 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000002 R12: 00007f302ede5fac
R13: 00007f302ede5fa0 R14: fffffffffffffffe R15: 0000000000000006
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:__filemap_add_folio+0xf29/0x11b0 mm/filemap.c:858
Code: 95 c6 ff 48 c7 c6 00 ee 99 8b 4c 89 ef e8 af 72 11 00 90 0f 0b e8 57 95 c6 ff 48 c7 c6 60 ee 99 8b 4c 89 ef e8 98 72 11 00 90 <0f> 0b e8 40 95 c6 ff 90 0f 0b 90 e9 1c fc ff ff e8 32 95 c6 ff 48
RSP: 0018:ffffc9000348f840 EFLAGS: 00010293
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
RDX: ffff888030b90000 RSI: ffffffff81f86688 RDI: ffff888030b90484
RBP: 0000000000112cc0 R08: 0000000000000001 R09: 0000000000000001
R10: ffffffff9088cdd7 R11: 0000000000000002 R12: 0000000000000002
R13: ffffea00009307c0 R14: 0000000000000000 R15: 0000000000000000
FS:  00005555769f6500(0000) GS:ffff8880d6af2000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000000980 CR3: 000000002adb8000 CR4: 0000000000352ef0