INFO: task syz-executor.3:7743 blocked for more than 143 seconds. Not tainted 6.2.0-rc1-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.3 state:D stack:23768 pid:7743 ppid:5101 flags:0x00004004 Call Trace: context_switch kernel/sched/core.c:5244 [inline] __schedule+0x995/0xe20 kernel/sched/core.c:6555 schedule+0xcb/0x190 kernel/sched/core.c:6631 rwsem_down_read_slowpath+0x5f9/0x930 kernel/locking/rwsem.c:1095 __down_read_common+0x54/0x2a0 kernel/locking/rwsem.c:1260 mmap_read_lock+0x17/0x50 include/linux/mmap_lock.h:117 do_user_addr_fault+0x4b7/0xcb0 arch/x86/mm/fault.c:1379 handle_page_fault arch/x86/mm/fault.c:1519 [inline] exc_page_fault+0x7a/0x110 arch/x86/mm/fault.c:1575 asm_exc_page_fault+0x22/0x30 arch/x86/include/asm/idtentry.h:570 RIP: 0033:0x7f2a58a369de RSP: 002b:00007ffcb52a7330 EFLAGS: 00010287 RAX: 0000000000000003 RBX: 00007f2a58b297a0 RCX: 0000000000000015 RDX: 00007f2a5861fff0 RSI: 00007f2a58af1fcf RDI: 00007f2a58ae7958 RBP: 00007ffcb52a73e8 R08: 00007f2a58a00000 R09: 00007f2a58600000 R10: 00007f2a58620000 R11: 00000000000140c8 R12: 0000000000067fbb R13: 00007ffcb52a7410 R14: 00007ffcb52a7430 R15: 0000000000000032 INFO: task syz-executor.3:7747 blocked for more than 144 seconds. Not tainted 6.2.0-rc1-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.3 state:D stack:21120 pid:7747 ppid:5101 flags:0x00004004 Call Trace: context_switch kernel/sched/core.c:5244 [inline] __schedule+0x995/0xe20 kernel/sched/core.c:6555 schedule+0xcb/0x190 kernel/sched/core.c:6631 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6690 __mutex_lock_common+0xe4f/0x26e0 kernel/locking/mutex.c:679 __mutex_lock kernel/locking/mutex.c:747 [inline] mutex_lock_nested+0x17/0x20 kernel/locking/mutex.c:799 ni_lock fs/ntfs3/ntfs_fs.h:1122 [inline] attr_data_get_block+0x315/0x2d70 fs/ntfs3/attrib.c:919 ntfs_get_block_vbo+0x31f/0xc40 fs/ntfs3/inode.c:573 do_mpage_readpage+0x970/0x1c50 fs/mpage.c:208 mpage_readahead+0x210/0x380 fs/mpage.c:361 read_pages+0x169/0x9c0 mm/readahead.c:161 page_cache_ra_unbounded+0x194/0x820 mm/readahead.c:242 page_cache_sync_readahead include/linux/pagemap.h:1210 [inline] filemap_get_pages+0x465/0x10d0 mm/filemap.c:2600 filemap_read+0x3cf/0xea0 mm/filemap.c:2694 call_read_iter include/linux/fs.h:2180 [inline] generic_file_splice_read+0x1ff/0x5d0 fs/splice.c:309 do_splice_to fs/splice.c:793 [inline] splice_direct_to_actor+0x41b/0xc00 fs/splice.c:865 do_splice_direct+0x279/0x3d0 fs/splice.c:974 do_sendfile+0x5fb/0xf80 fs/read_write.c:1255 __do_sys_sendfile64 fs/read_write.c:1323 [inline] __se_sys_sendfile64+0x14f/0x1b0 fs/read_write.c:1309 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f2a58a8c0a9 RSP: 002b:00007f2a597cb168 EFLAGS: 00000246 ORIG_RAX: 0000000000000028 RAX: ffffffffffffffda RBX: 00007f2a58babf80 RCX: 00007f2a58a8c0a9 RDX: 0000000000000000 RSI: 0000000000000005 RDI: 0000000000000004 RBP: 00007f2a58ae7ae9 R08: 0000000000000000 R09: 0000000000000000 R10: 0001000000201005 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffcb52a72af R14: 00007f2a597cb300 R15: 0000000000022000 INFO: task syz-executor.3:7752 blocked for more than 145 seconds. Not tainted 6.2.0-rc1-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.3 state:D stack:21488 pid:7752 ppid:5101 flags:0x00004004 Call Trace: context_switch kernel/sched/core.c:5244 [inline] __schedule+0x995/0xe20 kernel/sched/core.c:6555 schedule+0xcb/0x190 kernel/sched/core.c:6631 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6690 __mutex_lock_common+0xe4f/0x26e0 kernel/locking/mutex.c:679 __mutex_lock kernel/locking/mutex.c:747 [inline] mutex_lock_nested+0x17/0x20 kernel/locking/mutex.c:799 ni_lock fs/ntfs3/ntfs_fs.h:1122 [inline] attr_data_get_block+0x315/0x2d70 fs/ntfs3/attrib.c:919 ntfs_file_mmap+0x437/0x6b0 fs/ntfs3/file.c:296 call_mmap include/linux/fs.h:2191 [inline] mmap_region+0xfe6/0x1e20 mm/mmap.c:2621 do_mmap+0x8d9/0xf30 mm/mmap.c:1411 vm_mmap_pgoff+0x19e/0x2b0 mm/util.c:520 ksys_mmap_pgoff+0x48c/0x6d0 mm/mmap.c:1457 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f2a58a8c0a9 RSP: 002b:00007f2a597aa168 EFLAGS: 00000246 ORIG_RAX: 0000000000000009 RAX: ffffffffffffffda RBX: 00007f2a58bac050 RCX: 00007f2a58a8c0a9 RDX: 0000000000800006 RSI: 000000000000a000 RDI: 0000000020001000 RBP: 00007f2a58ae7ae9 R08: 0000000000000046 R09: 0000000000080000 R10: 0000000000000011 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffcb52a72af R14: 00007f2a597aa300 R15: 0000000000022000 INFO: task syz-executor.3:7753 blocked for more than 145 seconds. Not tainted 6.2.0-rc1-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.3 state:D stack:21784 pid:7753 ppid:5101 flags:0x00004004 Call Trace: context_switch kernel/sched/core.c:5244 [inline] __schedule+0x995/0xe20 kernel/sched/core.c:6555 schedule+0xcb/0x190 kernel/sched/core.c:6631 io_schedule+0x83/0x100 kernel/sched/core.c:8811 folio_wait_bit_common+0x83a/0x12a0 mm/filemap.c:1297 folio_lock include/linux/pagemap.h:938 [inline] truncate_inode_pages_range+0xc7d/0x1690 mm/truncate.c:421 truncate_inode_pages mm/truncate.c:448 [inline] truncate_pagecache mm/truncate.c:743 [inline] truncate_setsize+0xcb/0xf0 mm/truncate.c:768 ntfs_truncate fs/ntfs3/file.c:395 [inline] ntfs3_setattr+0x5a5/0xca0 fs/ntfs3/file.c:696 notify_change+0xe50/0x1100 fs/attr.c:482 do_truncate+0x200/0x2f0 fs/open.c:65 handle_truncate fs/namei.c:3216 [inline] do_open fs/namei.c:3561 [inline] path_openat+0x272b/0x2dd0 fs/namei.c:3714 do_filp_open+0x264/0x4f0 fs/namei.c:3741 do_sys_openat2+0x124/0x4e0 fs/open.c:1310 do_sys_open fs/open.c:1326 [inline] __do_sys_creat fs/open.c:1402 [inline] __se_sys_creat fs/open.c:1396 [inline] __x64_sys_creat+0x11f/0x160 fs/open.c:1396 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f2a58a8c0a9 RSP: 002b:00007f2a59789168 EFLAGS: 00000246 ORIG_RAX: 0000000000000055 RAX: ffffffffffffffda RBX: 00007f2a58bac120 RCX: 00007f2a58a8c0a9 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000040 RBP: 00007f2a58ae7ae9 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffcb52a72af R14: 00007f2a59789300 R15: 0000000000022000 Showing all locks held in the system: 1 lock held by rcu_tasks_kthre/12: #0: ffffffff8d326e90 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x30/0xd00 kernel/rcu/tasks.h:507 1 lock held by rcu_tasks_trace/13: #0: ffffffff8d327690 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x30/0xd00 kernel/rcu/tasks.h:507 2 locks held by kworker/1:0/22: #0: ffff888012870d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x7f2/0xdb0 #1: ffffc900001c7d00 ((work_completion)(&pwq->unbound_release_work)){+.+.}-{0:0}, at: process_one_work+0x831/0xdb0 kernel/workqueue.c:2264 1 lock held by khungtaskd/28: #0: ffffffff8d326cc0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30 2 locks held by kworker/1:2/2487: #0: ffff888012870d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x7f2/0xdb0 #1: ffffc9000a9dfd00 ((work_completion)(&pwq->unbound_release_work)){+.+.}-{0:0}, at: process_one_work+0x831/0xdb0 kernel/workqueue.c:2264 1 lock held by udevd/4433: 2 locks held by kworker/1:3/4730: #0: ffff888012870d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x7f2/0xdb0 #1: ffffc900036dfd00 ((work_completion)(&pwq->unbound_release_work)){+.+.}-{0:0}, at: process_one_work+0x831/0xdb0 kernel/workqueue.c:2264 2 locks held by getty/4747: #0: ffff88814a526098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x21/0x70 drivers/tty/tty_ldisc.c:244 #1: ffffc900015902f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x53b/0x1650 drivers/tty/n_tty.c:2177 1 lock held by syz-executor.4/5118: #0: ffffffff8d32c338 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:324 [inline] #0: ffffffff8d32c338 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x455/0x860 kernel/rcu/tree_exp.h:946 2 locks held by kworker/1:6/5166: #0: ffff888012870d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x7f2/0xdb0 #1: ffffc9000485fd00 ((work_completion)(&pwq->unbound_release_work)){+.+.}-{0:0}, at: process_one_work+0x831/0xdb0 kernel/workqueue.c:2264 2 locks held by kworker/1:7/5167: #0: ffff888012870d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x7f2/0xdb0 #1: ffffc9000486fd00 ((work_completion)(&pwq->unbound_release_work)){+.+.}-{0:0}, at: process_one_work+0x831/0xdb0 kernel/workqueue.c:2264 2 locks held by kworker/1:9/5255: #0: ffff888012870d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x7f2/0xdb0 #1: ffffc9000501fd00 ((work_completion)(&pwq->unbound_release_work)){+.+.}-{0:0}, at: process_one_work+0x831/0xdb0 kernel/workqueue.c:2264 2 locks held by kworker/1:10/5448: #0: ffff888012870d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x7f2/0xdb0 #1: ffffc90005727d00 ((work_completion)(&pwq->unbound_release_work)){+.+.}-{0:0}, at: process_one_work+0x831/0xdb0 kernel/workqueue.c:2264 2 locks held by kworker/1:11/5450: #0: ffff888012870d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x7f2/0xdb0 #1: ffffc90005a97d00 ((work_completion)(&pwq->unbound_release_work)){+.+.}-{0:0}, at: process_one_work+0x831/0xdb0 kernel/workqueue.c:2264 2 locks held by kworker/1:12/5451: #0: ffff888012870d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x7f2/0xdb0 #1: ffffc90005a87d00 ((work_completion)(&pwq->unbound_release_work)){+.+.}-{0:0}, at: process_one_work+0x831/0xdb0 kernel/workqueue.c:2264 2 locks held by kworker/1:13/5452: #0: ffff888012870d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x7f2/0xdb0 #1: ffffc900054ffd00 ((work_completion)(&pwq->unbound_release_work)){+.+.}-{0:0}, at: process_one_work+0x831/0xdb0 kernel/workqueue.c:2264 2 locks held by kworker/1:14/5453: #0: ffff888012870d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x7f2/0xdb0 #1: ffffc90005aa7d00 ((work_completion)(&pwq->unbound_release_work)){+.+.}-{0:0}, at: process_one_work+0x831/0xdb0 kernel/workqueue.c:2264 2 locks held by kworker/1:15/5454: #0: ffff888012870d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x7f2/0xdb0 #1: ffffc90005787d00 ((work_completion)(&pwq->unbound_release_work)){+.+.}-{0:0}, at: process_one_work+0x831/0xdb0 kernel/workqueue.c:2264 2 locks held by kworker/1:17/7461: #0: ffff888012870d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x7f2/0xdb0 #1: ffffc90014e9fd00 ((work_completion)(&pwq->unbound_release_work)){+.+.}-{0:0}, at: process_one_work+0x831/0xdb0 kernel/workqueue.c:2264 1 lock held by syz-executor.3/7743: #0: ffff88807f3212d8 (&mm->mmap_lock){++++}-{3:3}, at: mmap_read_lock+0x17/0x50 include/linux/mmap_lock.h:117 3 locks held by syz-executor.3/7747: #0: ffff88803539a460 (sb_writers#17){.+.+}-{0:0}, at: do_sendfile+0x5d6/0xf80 fs/read_write.c:1254 #1: ffff8880724938e0 (mapping.invalidate_lock#7){.+.+}-{3:3}, at: filemap_invalidate_lock_shared include/linux/fs.h:811 [inline] #1: ffff8880724938e0 (mapping.invalidate_lock#7){.+.+}-{3:3}, at: page_cache_ra_unbounded+0xe9/0x820 mm/readahead.c:226 #2: ffff8880724934a0 (&ni->ni_lock/4){+.+.}-{3:3}, at: ni_lock fs/ntfs3/ntfs_fs.h:1122 [inline] #2: ffff8880724934a0 (&ni->ni_lock/4){+.+.}-{3:3}, at: attr_data_get_block+0x315/0x2d70 fs/ntfs3/attrib.c:919 2 locks held by syz-executor.3/7752: #0: ffff88807f3212d8 (&mm->mmap_lock){++++}-{3:3}, at: mmap_write_lock_killable include/linux/mmap_lock.h:87 [inline] #0: ffff88807f3212d8 (&mm->mmap_lock){++++}-{3:3}, at: vm_mmap_pgoff+0x14d/0x2b0 mm/util.c:518 #1: ffff8880724934a0 (&ni->ni_lock/4){+.+.}-{3:3}, at: ni_lock fs/ntfs3/ntfs_fs.h:1122 [inline] #1: ffff8880724934a0 (&ni->ni_lock/4){+.+.}-{3:3}, at: attr_data_get_block+0x315/0x2d70 fs/ntfs3/attrib.c:919 3 locks held by syz-executor.3/7753: #0: ffff88803539a460 (sb_writers#17){.+.+}-{0:0}, at: mnt_want_write+0x3b/0x80 fs/namespace.c:508 #1: ffff888072493740 (&sb->s_type->i_mutex_key#25){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:756 [inline] #1: ffff888072493740 (&sb->s_type->i_mutex_key#25){+.+.}-{3:3}, at: do_truncate+0x1ec/0x2f0 fs/open.c:63 #2: ffff8880724934a0 (&ni->ni_lock/4){+.+.}-{3:3}, at: ni_lock fs/ntfs3/ntfs_fs.h:1122 [inline] #2: ffff8880724934a0 (&ni->ni_lock/4){+.+.}-{3:3}, at: ntfs_truncate fs/ntfs3/file.c:393 [inline] #2: ffff8880724934a0 (&ni->ni_lock/4){+.+.}-{3:3}, at: ntfs3_setattr+0x596/0xca0 fs/ntfs3/file.c:696 2 locks held by kworker/0:18/8455: #0: ffff888012872538 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: process_one_work+0x7f2/0xdb0 #1: ffffc9000a79fd00 ((work_completion)(&rew->rew_work)){+.+.}-{0:0}, at: process_one_work+0x831/0xdb0 kernel/workqueue.c:2264 2 locks held by kworker/1:18/9084: #0: ffff888012870d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x7f2/0xdb0 #1: ffffc9001869fd00 ((work_completion)(&pwq->unbound_release_work)){+.+.}-{0:0}, at: process_one_work+0x831/0xdb0 kernel/workqueue.c:2264 2 locks held by kworker/1:19/9086: #0: ffff888012870d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x7f2/0xdb0 #1: ffffc90017edfd00 ((work_completion)(&pwq->unbound_release_work)){+.+.}-{0:0}, at: process_one_work+0x831/0xdb0 kernel/workqueue.c:2264 3 locks held by kworker/0:21/9722: #0: ffff888012870d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x7f2/0xdb0 #1: ffffc9000537fd00 ((work_completion)(&pwq->unbound_release_work)){+.+.}-{0:0}, at: process_one_work+0x831/0xdb0 kernel/workqueue.c:2264 #2: ffffffff8d32c338 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:292 [inline] #2: ffffffff8d32c338 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x384/0x860 kernel/rcu/tree_exp.h:946 ============================================= NMI backtrace for cpu 1 CPU: 1 PID: 28 Comm: khungtaskd Not tainted 6.2.0-rc1-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x1b1/0x290 lib/dump_stack.c:106 nmi_cpu_backtrace+0x46f/0x4f0 lib/nmi_backtrace.c:111 nmi_trigger_cpumask_backtrace+0x1ba/0x420 lib/nmi_backtrace.c:62 trigger_all_cpu_backtrace include/linux/nmi.h:148 [inline] check_hung_uninterruptible_tasks kernel/hung_task.c:220 [inline] watchdog+0xcd5/0xd20 kernel/hung_task.c:377 kthread+0x266/0x300 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 5178 Comm: kworker/u4:6 Not tainted 6.2.0-rc1-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 Workqueue: bat_events batadv_nc_worker RIP: 0010:lock_is_held include/linux/lockdep.h:283 [inline] RIP: 0010:rcu_read_lock_sched_held+0x82/0x110 kernel/rcu/update.c:125 Code: e8 13 70 3d 09 85 c0 74 2a 45 31 ff e8 f7 34 01 00 84 c0 74 24 e8 5e 36 01 00 84 c0 74 1b 48 c7 c7 40 6c 32 8d be ff ff ff ff 69 6c 3d 09 85 c0 74 34 41 bf 01 00 00 00 48 c7 04 24 0e 36 e0 RSP: 0018:ffffc900048ef9e0 EFLAGS: 00000202 RAX: 1ffffffff1a65701 RBX: 1ffff9200091df3c RCX: 0000000080000001 RDX: 0000000000000000 RSI: 00000000ffffffff RDI: ffffffff8d326c40 RBP: ffffc900048efa60 R08: dffffc0000000000 R09: fffffbfff1d2ccee R10: fffffbfff1d2ccee R11: 1ffffffff1d2cced R12: dffffc0000000000 R13: ffff888068890000 R14: dffffc0000000000 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020000182 CR3: 000000000d08e000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: trace_lock_release+0x95/0x220 include/trace/events/lock.h:69 lock_release+0x81/0x820 kernel/locking/lockdep.c:5679 rcu_read_unlock include/linux/rcupdate.h:797 [inline] batadv_nc_purge_orig_hash net/batman-adv/network-coding.c:412 [inline] batadv_nc_worker+0x251/0x5b0 net/batman-adv/network-coding.c:719 process_one_work+0x877/0xdb0 kernel/workqueue.c:2289 worker_thread+0xb14/0x1330 kernel/workqueue.c:2436 kthread+0x266/0x300 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308