------------[ cut here ]------------
WARNING: CPU: 0 PID: 6028 at fs/fuse/file.c:1842 spin_unlock include/linux/spinlock.h:389 [inline]
WARNING: CPU: 0 PID: 6028 at fs/fuse/file.c:1842 __fuse_write_file_get fs/fuse/file.c:1834 [inline]
WARNING: CPU: 0 PID: 6028 at fs/fuse/file.c:1842 fuse_write_file_get fs/fuse/file.c:1841 [inline]
WARNING: CPU: 0 PID: 6028 at fs/fuse/file.c:1842 fuse_writepages_fill+0x48b/0x1c60 fs/fuse/file.c:2152
Modules linked in:
CPU: 0 PID: 6028 Comm: kworker/u4:8 Not tainted 5.18.0-rc1-syzkaller-00016-g3e732ebf7316 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: writeback wb_workfn (flush-0:49)
RIP: 0010:fuse_write_file_get fs/fuse/file.c:1842 [inline]
RIP: 0010:fuse_writepages_fill+0x48b/0x1c60 fs/fuse/file.c:2152
Code: 8b 6d 00 48 89 df 48 89 ee e8 61 be a2 fe 48 39 eb 76 43 e8 17 bc a2 fe e9 f9 03 00 00 e8 0d bc a2 fe 4c 89 ff e8 f5 8e 47 07 <0f> 0b 48 8b 44 24 50 42 80 3c 30 00 48 8b 5c 24 40 74 08 48 89 df
RSP: 0018:ffffc9000551ee48 EFLAGS: 00010286
RAX: 0000000080000000 RBX: ffff88802b09c188 RCX: 0000000000000001
RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000001
RBP: ffff88802b09c188 R08: dffffc0000000000 R09: ffffed1005613855
R10: ffffed1005613855 R11: 0000000000000000 R12: 0000000000000000
R13: ffffea0001405640 R14: dffffc0000000000 R15: ffff88802b09c2a0
FS:  0000000000000000(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055555635f848 CR3: 000000002620b000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 write_cache_pages+0x87a/0x1340 mm/page-writeback.c:2243
 fuse_writepages+0x299/0x480 fs/fuse/file.c:2258
 do_writepages+0x3c3/0x690 mm/page-writeback.c:2352
 __writeback_single_inode+0xc0/0x620 fs/fs-writeback.c:1581
 writeback_sb_inodes+0x1116/0x2dd0 fs/fs-writeback.c:1854
 __writeback_inodes_wb+0x146/0x710 fs/fs-writeback.c:1923
 wb_writeback+0x420/0x770 fs/fs-writeback.c:2028
 wb_check_background_flush fs/fs-writeback.c:2094 [inline]
 wb_do_writeback fs/fs-writeback.c:2182 [inline]
 wb_workfn+0xb8d/0x1190 fs/fs-writeback.c:2209
 process_one_work+0x83c/0x11a0 kernel/workqueue.c:2289
 worker_thread+0xa6c/0x1290 kernel/workqueue.c:2436
 kthread+0x2a3/0x2d0 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30
 </TASK>