------------[ cut here ]------------ WARNING: CPU: 0 PID: 12 at fs/netfs/write_issue.c:586 netfs_writepages+0x772/0x9e0 fs/netfs/write_issue.c:586 Modules linked in: CPU: 0 UID: 0 PID: 12 Comm: kworker/u4:1 Not tainted 6.14.0-rc3-syzkaller-00267-gff202c5028a1 #0 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 Workqueue: writeback wb_workfn (flush-9p-1) RIP: 0010:netfs_writepages+0x772/0x9e0 fs/netfs/write_issue.c:586 Code: f2 48 8d 8c 24 90 00 00 00 e8 da 7e 89 ff 48 85 c0 0f 84 f2 00 00 00 48 89 c3 e8 69 bd 4d ff e9 3e fe ff ff e8 5f bd 4d ff 90 <0f> 0b 90 e9 9d fe ff ff e8 51 bd 4d ff 4c 89 e7 be 08 00 00 00 e8 RSP: 0018:ffffc900001e7000 EFLAGS: 00010293 RAX: ffffffff8273fd31 RBX: 810f000000000000 RCX: ffff88801caec880 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 810f000000000000 RBP: ffffc900001e70f0 R08: ffffffff8273fbc9 R09: 1ffff11003ce74c6 R10: dffffc0000000000 R11: ffffed1003ce74c7 R12: ffff88801e73a660 R13: dffffc0000000000 R14: ffffea00014e2100 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff88801fc00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffe173bf948 CR3: 0000000044356000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: do_writepages+0x35f/0x880 mm/page-writeback.c:2687 __writeback_single_inode+0x14f/0x10d0 fs/fs-writeback.c:1680 writeback_sb_inodes+0x820/0x1360 fs/fs-writeback.c:1976 __writeback_inodes_wb+0x11b/0x260 fs/fs-writeback.c:2047 wb_writeback+0x427/0xb80 fs/fs-writeback.c:2158 wb_check_start_all fs/fs-writeback.c:2284 [inline] wb_do_writeback fs/fs-writeback.c:2310 [inline] wb_workfn+0x973/0x1080 fs/fs-writeback.c:2343 process_one_work kernel/workqueue.c:3236 [inline] process_scheduled_works+0xabe/0x18e0 kernel/workqueue.c:3317 worker_thread+0x870/0xd30 kernel/workqueue.c:3398 kthread+0x7a9/0x920 kernel/kthread.c:464 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:148 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244