------------[ cut here ]------------ WARNING: CPU: 1 PID: 4790 at fs/fuse/file.c:1843 spin_unlock include/linux/spinlock.h:389 [inline] WARNING: CPU: 1 PID: 4790 at fs/fuse/file.c:1843 __fuse_write_file_get fs/fuse/file.c:1835 [inline] WARNING: CPU: 1 PID: 4790 at fs/fuse/file.c:1843 fuse_write_file_get+0xb7/0xf0 fs/fuse/file.c:1842 Modules linked in: CPU: 1 PID: 4790 Comm: kworker/u4:8 Not tainted 5.19.0-rc3-syzkaller-00027-g78ca55889a54 #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+0xb7/0xf0 fs/fuse/file.c:1843 Code: bf ff ff ff ff e8 59 20 95 fe 09 dd 78 36 e8 30 1c 95 fe 4c 89 f7 e8 38 6a 41 07 eb 0f e8 21 1c 95 fe 4c 89 f7 e8 29 6a 41 07 <0f> 0b 4c 89 e0 5b 41 5c 41 5e 41 5f 5d c3 e8 06 1c 95 fe be 02 00 RSP: 0018:ffffc9000a0eeeb0 EFLAGS: 00010286 RAX: 0000000080000000 RBX: ffff88803541bac8 RCX: 0000000000000001 RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000001 RBP: ffffc9000a0ef1f0 R08: dffffc0000000000 R09: ffffed1006a8377d R10: ffffed1006a8377d R11: 1ffff11006a8377c R12: 0000000000000000 R13: ffffea0001151100 R14: ffff88803541bbe0 R15: dffffc0000000000 FS: 0000000000000000(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fb0327691b8 CR3: 0000000025b97000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: fuse_writepages_fill+0x11b/0x1bb0 fs/fuse/file.c:2153 write_cache_pages+0x7dd/0x1350 mm/page-writeback.c:2334 fuse_writepages+0x295/0x470 fs/fuse/file.c:2259 do_writepages+0x3c3/0x690 mm/page-writeback.c:2443 __writeback_single_inode+0xd1/0x670 fs/fs-writeback.c:1587 writeback_sb_inodes+0xb45/0x18c0 fs/fs-writeback.c:1865 __writeback_inodes_wb+0x125/0x420 fs/fs-writeback.c:1936 wb_writeback+0x450/0x7a0 fs/fs-writeback.c:2041 wb_check_background_flush fs/fs-writeback.c:2107 [inline] wb_do_writeback fs/fs-writeback.c:2195 [inline] wb_workfn+0xb5f/0xf10 fs/fs-writeback.c:2222 process_one_work+0x81c/0xd10 kernel/workqueue.c:2289 worker_thread+0xb14/0x1330 kernel/workqueue.c:2436 kthread+0x266/0x300 kernel/kthread.c:376 ret_from_fork+0x1f/0x30