INFO: task syz-executor.0:6524 blocked for more than 143 seconds. Not tainted 6.8.0-rc2-syzkaller-g41bccc98fb79 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.0 state:D stack:0 pid:6524 tgid:6524 ppid:1 flags:0x00000005 Call trace: __switch_to+0x314/0x560 arch/arm64/kernel/process.c:556 context_switch kernel/sched/core.c:5400 [inline] __schedule+0x1498/0x24b4 kernel/sched/core.c:6727 __schedule_loop kernel/sched/core.c:6802 [inline] schedule+0xb8/0x19c kernel/sched/core.c:6817 io_schedule+0x8c/0x12c kernel/sched/core.c:9023 folio_wait_bit_common+0x65c/0xb90 mm/filemap.c:1274 __folio_lock mm/filemap.c:1612 [inline] folio_lock include/linux/pagemap.h:1048 [inline] __filemap_get_folio+0x1e4/0xa60 mm/filemap.c:1865 truncate_inode_pages_range+0x468/0xf34 mm/truncate.c:367 truncate_inode_pages mm/truncate.c:439 [inline] truncate_inode_pages_final+0x90/0xc0 mm/truncate.c:474 ntfs_evict_big_inode+0x3c/0x41c fs/ntfs/inode.c:2251 evict+0x260/0x68c fs/inode.c:665 dispose_list fs/inode.c:698 [inline] evict_inodes+0x6b4/0x74c fs/inode.c:748 generic_shutdown_super+0x9c/0x2b8 fs/super.c:631 kill_block_super+0x44/0x90 fs/super.c:1680 deactivate_locked_super+0xc4/0x144 fs/super.c:477 deactivate_super+0xe0/0x100 fs/super.c:510 cleanup_mnt+0x34c/0x3dc fs/namespace.c:1267 __cleanup_mnt+0x20/0x30 fs/namespace.c:1274 task_work_run+0x230/0x2e0 kernel/task_work.c:180 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] do_notify_resume+0x214c/0x393c arch/arm64/kernel/signal.c:1305 exit_to_user_mode_prepare arch/arm64/kernel/entry-common.c:137 [inline] exit_to_user_mode arch/arm64/kernel/entry-common.c:144 [inline] el0_svc+0x9c/0x158 arch/arm64/kernel/entry-common.c:679 el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:696 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:598 Showing all locks held in the system: 1 lock held by khungtaskd/29: #0: ffff80008ee44100 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0xc/0x44 include/linux/rcupdate.h:297 1 lock held by syslogd/5770: 1 lock held by klogd/5774: 2 locks held by getty/5928: #0: ffff0000d356b0a0 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x3c/0x4c drivers/tty/tty_ldsem.c:340 #1: ffff800093fb02f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x41c/0x1228 drivers/tty/n_tty.c:2201 1 lock held by syz-executor.0/6524: #0: ffff0000cc9e40e0 (&type->s_umount_key#50){+.+.}-{3:3}, at: __super_lock fs/super.c:56 [inline] #0: ffff0000cc9e40e0 (&type->s_umount_key#50){+.+.}-{3:3}, at: __super_lock_excl fs/super.c:71 [inline] #0: ffff0000cc9e40e0 (&type->s_umount_key#50){+.+.}-{3:3}, at: deactivate_super+0xd8/0x100 fs/super.c:509 =============================================