INFO: task syz-executor.5:11770 blocked for more than 143 seconds. Not tainted 6.2.0-rc1-next-20221226-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.5 state:D stack:25440 pid:11770 ppid:5115 flags:0x00004004 Call Trace: context_switch kernel/sched/core.c:5244 [inline] __schedule+0x2544/0x53f0 kernel/sched/core.c:6555 schedule+0xde/0x1b0 kernel/sched/core.c:6631 io_schedule+0xbe/0x130 kernel/sched/core.c:8811 folio_wait_bit_common+0x394/0x9b0 mm/filemap.c:1297 __folio_lock mm/filemap.c:1660 [inline] folio_lock include/linux/pagemap.h:938 [inline] folio_lock include/linux/pagemap.h:934 [inline] __filemap_get_folio+0xb71/0xd80 mm/filemap.c:1932 truncate_inode_pages_range+0x350/0xec0 mm/truncate.c:377 truncate_inode_pages mm/truncate.c:448 [inline] truncate_pagecache+0x67/0x90 mm/truncate.c:743 ntfs_truncate fs/ntfs3/file.c:395 [inline] ntfs3_setattr+0x554/0xd30 fs/ntfs3/file.c:696 notify_change+0xca7/0x1420 fs/attr.c:482 do_truncate+0x143/0x200 fs/open.c:65 do_sys_ftruncate+0x51f/0x710 fs/open.c:193 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f717608c0a9 RSP: 002b:00007f7176e37168 EFLAGS: 00000246 ORIG_RAX: 000000000000004d RAX: ffffffffffffffda RBX: 00007f71761abf80 RCX: 00007f717608c0a9 RDX: 0000000000000000 RSI: 0000000000000007 RDI: 0000000000000005 RBP: 00007f71760e7ae9 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fff5a24ad9f R14: 00007f7176e37300 R15: 0000000000022000 INFO: task syz-executor.5:11778 blocked for more than 144 seconds. Not tainted 6.2.0-rc1-next-20221226-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.5 state:D stack:27768 pid:11778 ppid:5115 flags:0x00004004 Call Trace: context_switch kernel/sched/core.c:5244 [inline] __schedule+0x2544/0x53f0 kernel/sched/core.c:6555 schedule+0xde/0x1b0 kernel/sched/core.c:6631 schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6690 __mutex_lock_common kernel/locking/mutex.c:679 [inline] __mutex_lock+0xa48/0x1360 kernel/locking/mutex.c:747 ni_lock fs/ntfs3/ntfs_fs.h:1122 [inline] ntfs_read_folio+0xf6/0x1e0 fs/ntfs3/inode.c:702 filemap_read_folio+0xdb/0x2c0 mm/filemap.c:2426 filemap_create_folio mm/filemap.c:2555 [inline] filemap_get_pages+0x482/0x16b0 mm/filemap.c:2607 filemap_read+0x315/0xc00 mm/filemap.c:2694 generic_file_read_iter+0x3ad/0x5b0 mm/filemap.c:2840 ntfs_file_read_iter+0x1b8/0x270 fs/ntfs3/file.c:758 call_read_iter include/linux/fs.h:2180 [inline] generic_file_splice_read+0x182/0x4b0 fs/splice.c:309 do_splice_to+0x1b9/0x240 fs/splice.c:793 splice_direct_to_actor+0x2ab/0x8a0 fs/splice.c:865 do_splice_direct+0x1ab/0x280 fs/splice.c:974 do_sendfile+0xb19/0x1270 fs/read_write.c:1255 __do_sys_sendfile64 fs/read_write.c:1323 [inline] __se_sys_sendfile64 fs/read_write.c:1309 [inline] __x64_sys_sendfile64+0x1d0/0x210 fs/read_write.c:1309 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f717608c0a9 RSP: 002b:00007f7176e16168 EFLAGS: 00000246 ORIG_RAX: 0000000000000028 RAX: ffffffffffffffda RBX: 00007f71761ac050 RCX: 00007f717608c0a9 RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000005 RBP: 00007f71760e7ae9 R08: 0000000000000000 R09: 0000000000000000 R10: 0001000000201005 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fff5a24ad9f R14: 00007f7176e16300 R15: 0000000000022000 Showing all locks held in the system: 1 lock held by rcu_tasks_kthre/12: #0: ffffffff8c791c30 (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/13: #0: ffffffff8c791930 (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/28: #0: ffffffff8c792780 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x57/0x2c2 kernel/locking/lockdep.c:6494 1 lock held by udevd/4434: 2 locks held by getty/4746: #0: ffff88802c773098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x26/0x80 drivers/tty/tty_ldisc.c:244 #1: ffffc900015902f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xef4/0x13e0 drivers/tty/n_tty.c:2177 2 locks held by kworker/u4:3/5144: 3 locks held by syz-executor.5/11770: #0: ffff888090b82460 (sb_writers#15){.+.+}-{0:0}, at: do_syscall_x64 arch/x86/entry/common.c:50 [inline] #0: ffff888090b82460 (sb_writers#15){.+.+}-{0:0}, at: do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80 #1: ffff8880752e3ea0 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:756 [inline] #1: ffff8880752e3ea0 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: do_truncate+0x131/0x200 fs/open.c:63 #2: ffff8880752e3c00 (&ni->ni_lock/4){+.+.}-{3:3}, at: ni_lock fs/ntfs3/ntfs_fs.h:1122 [inline] #2: ffff8880752e3c00 (&ni->ni_lock/4){+.+.}-{3:3}, at: ntfs_truncate fs/ntfs3/file.c:393 [inline] #2: ffff8880752e3c00 (&ni->ni_lock/4){+.+.}-{3:3}, at: ntfs3_setattr+0x545/0xd30 fs/ntfs3/file.c:696 3 locks held by syz-executor.5/11778: #0: ffff888090b82460 (sb_writers#15){.+.+}-{0:0}, at: __do_sys_sendfile64 fs/read_write.c:1323 [inline] #0: ffff888090b82460 (sb_writers#15){.+.+}-{0:0}, at: __se_sys_sendfile64 fs/read_write.c:1309 [inline] #0: ffff888090b82460 (sb_writers#15){.+.+}-{0:0}, at: __x64_sys_sendfile64+0x1d0/0x210 fs/read_write.c:1309 #1: ffff8880752e4040 (mapping.invalidate_lock#4){.+.+}-{3:3}, at: filemap_invalidate_lock_shared include/linux/fs.h:811 [inline] #1: ffff8880752e4040 (mapping.invalidate_lock#4){.+.+}-{3:3}, at: filemap_create_folio mm/filemap.c:2547 [inline] #1: ffff8880752e4040 (mapping.invalidate_lock#4){.+.+}-{3:3}, at: filemap_get_pages+0x3d4/0x16b0 mm/filemap.c:2607 #2: ffff8880752e3c00 (&ni->ni_lock/4){+.+.}-{3:3}, at: ni_lock fs/ntfs3/ntfs_fs.h:1122 [inline] #2: ffff8880752e3c00 (&ni->ni_lock/4){+.+.}-{3:3}, at: ntfs_read_folio+0xf6/0x1e0 fs/ntfs3/inode.c:702 4 locks held by syz-executor.1/14376: 4 locks held by syz-executor.3/14381: #0: ffff8880b983b598 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x2f/0x120 kernel/sched/core.c:537 #1: ffff88809164a120 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:756 [inline] #1: ffff88809164a120 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: __generic_file_fsync+0xb4/0x1f0 fs/libfs.c:1136 #2: ffff8880b983b598 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x2f/0x120 kernel/sched/core.c:537 #3: ffff8880b98287c8 (&per_cpu_ptr(group->pcpu, cpu)->seq){-.-.}-{0:0}, at: psi_task_change+0x1bf/0x2f0 kernel/sched/psi.c:900 1 lock held by syz-executor.4/14382: #0: ffffffff8e0c0828 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:75 [inline] #0: ffffffff8e0c0828 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x3e9/0xca0 net/core/rtnetlink.c:6138 1 lock held by syz-executor.4/14385: #0: ffffffff8e0c0828 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:75 [inline] #0: ffffffff8e0c0828 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x3e9/0xca0 net/core/rtnetlink.c:6138 1 lock held by syz-executor.4/14388: #0: ffffffff8e0c0828 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:75 [inline] #0: ffffffff8e0c0828 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x3e9/0xca0 net/core/rtnetlink.c:6138 1 lock held by syz-executor.4/14390: #0: ffffffff8e0c0828 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:75 [inline] #0: ffffffff8e0c0828 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x3e9/0xca0 net/core/rtnetlink.c:6138 1 lock held by syz-executor.4/14391: #0: ffffffff8e0c0828 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:75 [inline] #0: ffffffff8e0c0828 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x3e9/0xca0 net/core/rtnetlink.c:6138 1 lock held by syz-executor.4/14392: #0: ffffffff8e0c0828 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:75 [inline] #0: ffffffff8e0c0828 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x3e9/0xca0 net/core/rtnetlink.c:6138 1 lock held by syz-executor.4/14393: #0: ffffffff8e0c0828 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:75 [inline] #0: ffffffff8e0c0828 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x3e9/0xca0 net/core/rtnetlink.c:6138 1 lock held by syz-executor.5/14383: #0: ffffffff8c7fcbc8 (tracepoints_mutex){+.+.}-{3:3}, at: tracepoint_probe_unregister+0x31/0xc30 kernel/tracepoint.c:548 ============================================= NMI backtrace for cpu 1 CPU: 1 PID: 28 Comm: khungtaskd Not tainted 6.2.0-rc1-next-20221226-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+0xd1/0x138 lib/dump_stack.c:106 nmi_cpu_backtrace.cold+0x24/0x18a lib/nmi_backtrace.c:111 nmi_trigger_cpumask_backtrace+0x32f/0x3c0 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+0xc75/0xfc0 kernel/hung_task.c:377 kthread+0x2e8/0x3a0 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: 5066 Comm: syz-fuzzer Not tainted 6.2.0-rc1-next-20221226-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 RIP: 0033:0x56148f Code: 8d 6c 24 18 4d 39 2c 24 75 ce 49 89 24 24 eb c8 cc cc cc cc cc cc cc cc cc cc cc 49 3b 66 10 76 2d 48 83 ec 10 48 89 6c 24 08 <48> 8d 6c 24 08 4d 8b 66 20 4d 85 e4 75 27 48 89 44 24 18 84 00 e8 RSP: 002b:000000c0339ed110 EFLAGS: 00000202 RAX: 0000000001627dc0 RBX: 0000000000971840 RCX: 0000000000561480 RDX: 000000c00065e000 RSI: 000000c000092018 RDI: 000000c03fcfab40 RBP: 000000c0339ed150 R08: 0000000000000001 R09: 00007f6b0b753d5b R10: 000000c03fcfab40 R11: 000000c0000403e0 R12: 000000c03fcfd5c0 R13: 000000c0000403d0 R14: 000000c000083ba0 R15: 00007f6b0b753d5c FS: 000000c00046b890 GS: 0000000000000000