INFO: task syz-executor.1:16912 blocked for more than 143 seconds. Not tainted 6.0.0-syzkaller-00372-ga5088ee7251e #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.1 state:D stack:26216 pid:16912 ppid: 3647 flags:0x00004004 Call Trace: context_switch kernel/sched/core.c:5183 [inline] __schedule+0xadf/0x52b0 kernel/sched/core.c:6495 schedule+0xda/0x1b0 kernel/sched/core.c:6571 io_schedule+0xba/0x130 kernel/sched/core.c:8715 folio_wait_bit_common+0x3dd/0xa90 mm/filemap.c:1298 __folio_lock mm/filemap.c:1664 [inline] folio_lock include/linux/pagemap.h:939 [inline] folio_lock include/linux/pagemap.h:935 [inline] __filemap_get_folio+0xc6d/0xed0 mm/filemap.c:1936 truncate_inode_pages_range+0x37c/0x1510 mm/truncate.c:378 ntfs_evict_inode+0x16/0xa0 fs/ntfs3/inode.c:1741 evict+0x2ed/0x6b0 fs/inode.c:665 iput_final fs/inode.c:1748 [inline] iput.part.0+0x55d/0x810 fs/inode.c:1774 iput+0x58/0x70 fs/inode.c:1764 ntfs_fill_super+0x2e89/0x37f0 fs/ntfs3/super.c:1190 get_tree_bdev+0x440/0x760 fs/super.c:1323 vfs_get_tree+0x89/0x2f0 fs/super.c:1530 do_new_mount fs/namespace.c:3040 [inline] path_mount+0x1326/0x1e20 fs/namespace.c:3370 do_mount fs/namespace.c:3383 [inline] __do_sys_mount fs/namespace.c:3591 [inline] __se_sys_mount fs/namespace.c:3568 [inline] __x64_sys_mount+0x27f/0x300 fs/namespace.c:3568 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7fe1bc08bada RSP: 002b:00007fe1bd1dcf88 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 0000000020000200 RCX: 00007fe1bc08bada RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007fe1bd1dcfe0 RBP: 00007fe1bd1dd020 R08: 00007fe1bd1dd020 R09: 0000000020000000 R10: 0000000000000000 R11: 0000000000000202 R12: 0000000020000000 R13: 0000000020000100 R14: 00007fe1bd1dcfe0 R15: 0000000020004940 INFO: task syz-executor.1:16920 blocked for more than 143 seconds. Not tainted 6.0.0-syzkaller-00372-ga5088ee7251e #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.1 state:D stack:29248 pid:16920 ppid: 3647 flags:0x00004004 Call Trace: context_switch kernel/sched/core.c:5183 [inline] __schedule+0xadf/0x52b0 kernel/sched/core.c:6495 schedule+0xda/0x1b0 kernel/sched/core.c:6571 rwsem_down_read_slowpath+0x59f/0xb10 kernel/locking/rwsem.c:1087 __down_read_common kernel/locking/rwsem.c:1252 [inline] __down_read kernel/locking/rwsem.c:1261 [inline] down_read+0xe2/0x450 kernel/locking/rwsem.c:1501 iterate_supers+0xdb/0x290 fs/super.c:721 ksys_sync+0x86/0x150 fs/sync.c:102 __do_sys_sync+0xa/0x10 fs/sync.c:113 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7fe1bc08a5a9 RSP: 002b:00007fe1bd1bc168 EFLAGS: 00000246 ORIG_RAX: 00000000000000a2 RAX: ffffffffffffffda RBX: 00007fe1bc1ac050 RCX: 00007fe1bc08a5a9 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 00007fe1bc0e5580 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffe610df30f R14: 00007fe1bd1bc300 R15: 0000000000022000 INFO: task syz-executor.3:16946 blocked for more than 143 seconds. Not tainted 6.0.0-syzkaller-00372-ga5088ee7251e #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.3 state:D stack:29248 pid:16946 ppid: 3648 flags:0x00004004 Call Trace: context_switch kernel/sched/core.c:5183 [inline] __schedule+0xadf/0x52b0 kernel/sched/core.c:6495 schedule+0xda/0x1b0 kernel/sched/core.c:6571 rwsem_down_read_slowpath+0x59f/0xb10 kernel/locking/rwsem.c:1087 __down_read_common kernel/locking/rwsem.c:1252 [inline] __down_read kernel/locking/rwsem.c:1261 [inline] down_read+0xe2/0x450 kernel/locking/rwsem.c:1501 iterate_supers+0xdb/0x290 fs/super.c:721 ksys_sync+0x86/0x150 fs/sync.c:102 __do_sys_sync+0xa/0x10 fs/sync.c:113 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f7ab928a5a9 RSP: 002b:00007f7ab81dd168 EFLAGS: 00000246 ORIG_RAX: 00000000000000a2 RAX: ffffffffffffffda RBX: 00007f7ab93ac120 RCX: 00007f7ab928a5a9 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 00007f7ab92e5580 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffcdfb4d82f R14: 00007f7ab81dd300 R15: 0000000000022000 Showing all locks held in the system: 1 lock held by rcu_tasks_kthre/13: #0: ffffffff8bf88b70 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x26/0xc70 kernel/rcu/tasks.h:507 1 lock held by rcu_tasks_trace/14: #0: ffffffff8bf88870 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x26/0xc70 kernel/rcu/tasks.h:507 1 lock held by khungtaskd/29: #0: ffffffff8bf896c0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x260 kernel/locking/lockdep.c:6492 2 locks held by getty/3283: #0: ffff888026974098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x22/0x80 drivers/tty/tty_ldisc.c:244 #1: ffffc90002d162f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xef0/0x13e0 drivers/tty/n_tty.c:2177 1 lock held by syz-executor.1/16912: #0: ffff8880346060e0 (&type->s_umount_key#98/1){+.+.}-{3:3}, at: alloc_super+0x22e/0xb60 fs/super.c:228 1 lock held by syz-executor.1/16920: #0: ffff8880346060e0 (&type->s_umount_key#99){++++}-{3:3}, at: iterate_supers+0xdb/0x290 fs/super.c:721 1 lock held by syz-executor.3/16946: #0: ffff8880346060e0 (&type->s_umount_key#99){++++}-{3:3}, at: iterate_supers+0xdb/0x290 fs/super.c:721 1 lock held by syz-executor.1/17038: #0: ffff8880346060e0 (&type->s_umount_key#99){++++}-{3:3}, at: iterate_supers+0xdb/0x290 fs/super.c:721 1 lock held by syz-executor.3/17053: #0: ffff8880346060e0 (&type->s_umount_key#99){++++}-{3:3}, at: iterate_supers+0xdb/0x290 fs/super.c:721 1 lock held by syz-executor.1/17139: #0: ffff8880346060e0 (&type->s_umount_key#99){++++}-{3:3}, at: iterate_supers+0xdb/0x290 fs/super.c:721 1 lock held by syz-executor.3/17155: #0: ffff8880346060e0 (&type->s_umount_key#99){++++}-{3:3}, at: iterate_supers+0xdb/0x290 fs/super.c:721 1 lock held by syz-executor.3/17157: #0: ffff8880346060e0 (&type->s_umount_key#99){++++}-{3:3}, at: iterate_supers+0xdb/0x290 fs/super.c:721 ============================================= NMI backtrace for cpu 0 CPU: 0 PID: 29 Comm: khungtaskd Not tainted 6.0.0-syzkaller-00372-ga5088ee7251e #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106 nmi_cpu_backtrace.cold+0x46/0x14f lib/nmi_backtrace.c:111 nmi_trigger_cpumask_backtrace+0x206/0x250 lib/nmi_backtrace.c:62 trigger_all_cpu_backtrace include/linux/nmi.h:148 [inline] check_hung_uninterruptible_tasks kernel/hung_task.c:212 [inline] watchdog+0xc18/0xf50 kernel/hung_task.c:369 kthread+0x2e4/0x3a0 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 11674 Comm: kworker/u4:9 Not tainted 6.0.0-syzkaller-00372-ga5088ee7251e #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022 Workqueue: events_unbound toggle_allocation_gate RIP: 0010:csd_lock_wait kernel/smp.c:413 [inline] RIP: 0010:smp_call_function_many_cond+0x5c8/0x1430 kernel/smp.c:987 Code: 0a 00 85 ed 74 48 48 8b 44 24 08 49 89 c4 83 e0 07 49 c1 ec 03 48 89 c5 4d 01 f4 83 c5 03 e8 af b0 0a 00 f3 90 41 0f b6 04 24 <40> 38 c5 7c 08 84 c0 0f 85 b5 0b 00 00 8b 43 08 31 ff 83 e0 01 41 RSP: 0018:ffffc90002dcf968 EFLAGS: 00000293 RAX: 0000000000000000 RBX: ffff8880b9a427a0 RCX: 0000000000000000 RDX: ffff88807c301d80 RSI: ffffffff81716441 RDI: 0000000000000005 RBP: 0000000000000003 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000000 R12: ffffed10173484f5 R13: 0000000000000000 R14: dffffc0000000000 R15: 0000000000000001 FS: 0000000000000000(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000c0101196b0 CR3: 000000000bc8e000 CR4: 0000000000350ee0 Call Trace: on_each_cpu_cond_mask+0x56/0xa0 kernel/smp.c:1153 on_each_cpu include/linux/smp.h:71 [inline] text_poke_sync arch/x86/kernel/alternative.c:1302 [inline] text_poke_bp_batch+0x22e/0x6b0 arch/x86/kernel/alternative.c:1493 text_poke_flush arch/x86/kernel/alternative.c:1661 [inline] text_poke_flush arch/x86/kernel/alternative.c:1658 [inline] text_poke_finish+0x16/0x30 arch/x86/kernel/alternative.c:1668 arch_jump_label_transform_apply+0x13/0x20 arch/x86/kernel/jump_label.c:146 jump_label_update+0x32f/0x410 kernel/jump_label.c:801 static_key_disable_cpuslocked+0x152/0x1b0 kernel/jump_label.c:207 static_key_disable+0x16/0x20 kernel/jump_label.c:215 toggle_allocation_gate mm/kfence/core.c:825 [inline] toggle_allocation_gate+0x183/0x390 mm/kfence/core.c:803 process_one_work+0x991/0x1610 kernel/workqueue.c:2289 worker_thread+0x665/0x1080 kernel/workqueue.c:2436 kthread+0x2e4/0x3a0 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306