------------[ cut here ]------------
WARNING: CPU: 0 PID: 5320 at fs/ext4/inode.c:3965 ext4_dirty_folio+0x167/0x1b0 fs/ext4/inode.c:3965
Modules linked in:
CPU: 0 UID: 0 PID: 5320 Comm: syz.0.0 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:ext4_dirty_folio+0x167/0x1b0 fs/ext4/inode.c:3965
Code: ff 3a ad ff 49 83 3f 00 74 1a e8 14 01 46 ff 4c 89 e7 48 89 de 5b 41 5c 41 5d 41 5e 41 5f 5d e9 2f 2d d0 ff e8 fa 00 46 ff 90 <0f> 0b 90 eb e0 e8 ef 00 46 ff 90 0f 0b 90 eb a7 e8 e4 00 46 ff 48
RSP: 0018:ffffc9000d15f930 EFLAGS: 00010287
RAX: ffffffff827a5296 RBX: ffffea0000372e00 RCX: 0000000000100000
RDX: ffffc9000e3e2000 RSI: 00000000000000ce RDI: 00000000000000cf
RBP: 1ffffd400006e5c0 R08: ffffea0000372e07 R09: 1ffffd400006e5c0
R10: dffffc0000000000 R11: fffff9400006e5c1 R12: ffff888049d097d8
R13: 1ffffd400006e5c1 R14: 0000000000000001 R15: ffffea0000372e28
FS:  00007f4e478c56c0(0000) GS:ffff88808d301000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000005000 CR3: 000000001f7c0000 CR4: 0000000000352ef0
Call Trace:
 <TASK>
 folio_mark_dirty_lock+0xa8/0xe0 mm/page-writeback.c:2847
 set_page_dirty_lock+0x5e/0x140 mm/folio-compat.c:51
 fuse_copy_finish+0x105/0x200 fs/fuse/dev.c:860
 fuse_dev_do_read+0xcc9/0x1240 fs/fuse/dev.c:1500
 fuse_dev_read+0x14c/0x1d0 fs/fuse/dev.c:1585
 new_sync_read fs/read_write.c:491 [inline]
 vfs_read+0x55a/0xa30 fs/read_write.c:572
 ksys_read+0x145/0x250 fs/read_write.c:715
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xfa/0xfa0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f4e4698d8dc
Code: ec 28 48 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 99 93 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 31 c0 0f 05 <48> 3d 00 f0 ff ff 77 34 44 89 c7 48 89 44 24 08 e8 ef 93 02 00 48
RSP: 002b:00007f4e478c4fb0 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 0000200000009040 RCX: 00007f4e4698d8dc
RDX: 0000000000002000 RSI: 0000200000009040 RDI: 0000000000000003
RBP: 00007f4e46a11f91 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000003 R11: 0000000000000246 R12: 0000000000000003
R13: 0000200000006b80 R14: 00007f4e46be5fa0 R15: 00007fff0b9db1a8
 </TASK>