------------[ cut here ]------------ WARNING: CPU: 3 PID: 40 at fs/fuse/file.c:1843 fuse_write_file_get fs/fuse/file.c:1843 [inline] WARNING: CPU: 3 PID: 40 at fs/fuse/file.c:1843 fuse_writepages_fill+0x15ae/0x1a20 fs/fuse/file.c:2153 Modules linked in: CPU: 2 PID: 40 Comm: kworker/u17:2 Not tainted 5.19.0-rc6-syzkaller-00115-g4a57a8400075 #0 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.14.0-2 04/01/2014 Workqueue: writeback wb_workfn (flush-0:45) RIP: 0010:fuse_write_file_get fs/fuse/file.c:1843 [inline] RIP: 0010:fuse_writepages_fill+0x15ae/0x1a20 fs/fuse/file.c:2153 Code: ff 4c 89 ef e8 c3 64 fa fe e9 54 ec ff ff e8 b9 64 fa fe e9 7b ec ff ff e8 0f a9 ad fe 4c 89 f7 e8 77 b0 ad 06 e8 02 a9 ad fe <0f> 0b 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 18 48 c1 ea 03 80 RSP: 0018:ffffc90000667390 EFLAGS: 00010293 RAX: 0000000000000000 RBX: ffffc900006675f8 RCX: 0000000000000000 RDX: ffff888014a78000 RSI: ffffffff82ccc1de RDI: 0000000000000001 RBP: 0000000000000000 R08: 0000000000000000 R09: ffff88802708ae63 R10: ffffed1004e115cc R11: 0000000000000001 R12: ffffc90000667608 R13: ffff88802708ad48 R14: ffff88802708ae60 R15: ffff88802708a880 FS: 0000000000000000(0000) GS:ffff88802ca00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000002044c000 CR3: 0000000021a71000 CR4: 0000000000150ee0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: write_cache_pages+0x79f/0x1a50 mm/page-writeback.c:2334 fuse_writepages+0x29b/0x410 fs/fuse/file.c:2259 do_writepages+0x1ab/0x690 mm/page-writeback.c:2443 __writeback_single_inode+0x126/0x10d0 fs/fs-writeback.c:1587 writeback_sb_inodes+0x54d/0xf10 fs/fs-writeback.c:1865 __writeback_inodes_wb+0xc6/0x280 fs/fs-writeback.c:1936 wb_writeback+0x7f8/0xc30 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+0x9cb/0x1230 fs/fs-writeback.c:2222 process_one_work+0x996/0x1610 kernel/workqueue.c:2289 worker_thread+0x665/0x1080 kernel/workqueue.c:2436 kthread+0x2e9/0x3a0 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306