------------[ cut here ]------------
!ff
WARNING: fs/fuse/file.c:2043 at fuse_write_file_get fs/fuse/file.c:2043 [inline], CPU#0: syz-executor122/5774
WARNING: fs/fuse/file.c:2043 at fuse_iomap_writeback_range+0x7c8/0x18f0 fs/fuse/file.c:2227, CPU#0: syz-executor122/5774
Modules linked in:
CPU: 0 UID: 0 PID: 5774 Comm: syz-executor122 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
RIP: 0010:fuse_write_file_get fs/fuse/file.c:2043 [inline]
RIP: 0010:fuse_iomap_writeback_range+0x7c8/0x18f0 fs/fuse/file.c:2227
Code: fe 48 83 3b 00 74 5b e8 e6 f0 6c fe 4c 8b 3c 24 e9 08 0b 00 00 e8 d8 f0 6c fe eb 5c e8 d1 f0 6c fe 4c 89 f7 e8 39 63 8e 08 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 4c 24 58 80 3c 01 00
RSP: 0018:ffffc90003e172b8 EFLAGS: 00010286
RAX: 8000000000000000 RBX: ffff88806e4ea880 RCX: ffffffff9a9ec501
RDX: 0000000000000001 RSI: 0000000000000004 RDI: 00000000ffffffff
RBP: 0000000000001000 R08: ffff88806e4eae63 R09: 1ffff1100dc9d5cc
R10: dffffc0000000000 R11: ffffed100dc9d5cd R12: ffff88806e4ead08
R13: 0000000000001000 R14: ffff88806e4eae60 R15: ffff88806e4ead08
FS:  00007f6a3f53e6c0(0000) GS:ffff888124cc8000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000020000000b000 CR3: 0000000078090000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 iomap_writeback_range fs/iomap/buffered-io.c:1896 [inline]
 iomap_writeback_folio+0x1526/0x2490 fs/iomap/buffered-io.c:2022
 fuse_launder_folio+0x17b/0x240 fs/fuse/file.c:2331
 folio_launder mm/truncate.c:612 [inline]
 folio_unmap_invalidate+0x4cd/0x830 mm/truncate.c:634
 invalidate_inode_pages2_range+0x629/0xb30 mm/truncate.c:726
 fuse_open+0x5a6/0x770 fs/fuse/file.c:297
 do_dentry_open+0x816/0x1380 fs/open.c:996
 vfs_open+0x3b/0x340 fs/open.c:1101
 do_open fs/namei.c:4837 [inline]
 path_openat+0x1443/0x1d60 fs/namei.c:5000
 do_file_open+0x23e/0x4a0 fs/namei.c:5029
 do_sys_openat2+0x115/0x200 fs/open.c:1417
 do_sys_open fs/open.c:1423 [inline]
 __do_sys_openat fs/open.c:1439 [inline]
 __se_sys_openat fs/open.c:1434 [inline]
 __x64_sys_openat+0x138/0x170 fs/open.c:1434
 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline]
 do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f6a3f58fae9
Code: c0 79 93 eb d5 48 8d 7c 1d 00 eb 99 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 d0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f6a3f53e1d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007f6a3f644b98 RCX: 00007f6a3f58fae9
RDX: 0000000000000040 RSI: 000020000000c380 RDI: 00000000ffffff9c
RBP: 00007f6a3f644b90 R08: 31203a6b63617473 R09: 31203a6b63617473
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f6a3f6117f4
R13: 000020000000e3c0 R14: 00002000000062c0 R15: 00007ffe0b2d2af8
 </TASK>