------------[ cut here ]------------
WARNING: CPU: 0 PID: 54 at fs/fuse/file.c:1829 fuse_write_file_get fs/fuse/file.c:1829 [inline]
WARNING: CPU: 0 PID: 54 at fs/fuse/file.c:1829 fuse_write_file_get fs/fuse/file.c:1826 [inline]
WARNING: CPU: 0 PID: 54 at fs/fuse/file.c:1829 fuse_writepages_fill+0x1591/0x1a40 fs/fuse/file.c:2134
Modules linked in:
CPU: 0 PID: 54 Comm: kworker/u4:3 Not tainted 5.15.0-rc5-next-20211015-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: writeback wb_workfn (flush-0:50)
RIP: 0010:fuse_write_file_get fs/fuse/file.c:1829 [inline]
RIP: 0010:fuse_write_file_get fs/fuse/file.c:1826 [inline]
RIP: 0010:fuse_writepages_fill+0x1591/0x1a40 fs/fuse/file.c:2134
Code: ff 4c 89 f7 e8 90 3c 0f ff e9 71 ec ff ff e8 86 3c 0f ff e9 98 ec ff ff e8 dc a9 c8 fe 4c 89 ff e8 84 82 a1 06 e8 cf a9 c8 fe <0f> 0b 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 10 48 c1 ea 03 80
RSP: 0018:ffffc90001a2f428 EFLAGS: 00010293
RAX: 0000000000000000 RBX: ffffc90001a2f680 RCX: 0000000000000000
RDX: ffff888011ba5700 RSI: ffffffff82aebac1 RDI: 0000000000000001
RBP: 0000000000000000 R08: 0000000000000000 R09: ffff88806eee85e3
R10: ffffed100dddd0bc R11: 0000000000000000 R12: ffffea0001b04240
R13: ffffc90001a2f690 R14: ffff88806eee84c8 R15: ffff88806eee85e0
FS:  0000000000000000(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 0000000019b88000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 write_cache_pages+0x6f4/0x10c0 mm/page-writeback.c:2255
 fuse_writepages+0x1c9/0x320 fs/fuse/file.c:2236
 do_writepages+0x1a4/0x670 mm/page-writeback.c:2364
 __writeback_single_inode+0x126/0xff0 fs/fs-writeback.c:1616
 writeback_sb_inodes+0x53d/0xf00 fs/fs-writeback.c:1881
 __writeback_inodes_wb+0xc6/0x280 fs/fs-writeback.c:1950
 wb_writeback+0x7f1/0xc30 fs/fs-writeback.c:2055
 wb_check_background_flush fs/fs-writeback.c:2121 [inline]
 wb_do_writeback fs/fs-writeback.c:2209 [inline]
 wb_workfn+0xa21/0x1180 fs/fs-writeback.c:2237
 process_one_work+0x9b2/0x1690 kernel/workqueue.c:2297
 worker_thread+0x658/0x11f0 kernel/workqueue.c:2444
 kthread+0x405/0x4f0 kernel/kthread.c:327
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
 </TASK>