[12497] 0 12497 18145 8742 26 4 0 1000 syz-executor.5 [12977] 0 12977 18178 8744 27 4 0 1000 syz-executor.0 [13038] 0 13038 18113 16 23 3 0 0 syz-executor.2 [13039] 0 13039 18112 8732 24 4 0 0 syz-executor.2 INFO: task syz-executor.0:10319 blocked for more than 140 seconds. Not tainted 4.14.136+ #28 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [13196] 0 13196 18146 8698 24 3 0 1000 syz-executor.2 syz-executor.0 D25520 10319 10318 0x00000000 Call Trace: [13197] 0 13197 18146 8708 25 3 0 1000 syz-executor.2 [13212] 0 13212 18178 8744 26 4 0 1000 syz-executor.5 [13216] 0 13216 18145 8742 27 4 0 1000 syz-executor.0 [13220] 0 13220 5594 369 14 3 0 -1000 udevd [13223] 0 13223 5431 214 14 3 0 -1000 udevd [13393] 0 13393 18145 8744 26 4 0 1000 syz-executor.5 [13686] 0 13686 5431 214 14 3 0 -1000 udevd [13705] 0 13705 18145 8701 24 3 0 1000 syz-executor.2 schedule+0x92/0x1c0 kernel/sched/core.c:3498 [13706] 0 13706 18145 8710 25 3 0 1000 syz-executor.2 schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:3556 [13824] 0 13824 18178 8744 27 4 0 1000 syz-executor.0 __mutex_lock_common kernel/locking/mutex.c:833 [inline] __mutex_lock+0x595/0x13e0 kernel/locking/mutex.c:893 [13993] 0 13993 18178 8745 26 4 0 1000 syz-executor.5 [14077] 0 14077 18178 8744 27 4 0 1000 syz-executor.0 [14133] 0 14133 18178 8744 27 4 0 1000 syz-executor.0 [14205] 0 14205 18145 8742 27 4 0 1000 syz-executor.0 [15461] 0 15461 18178 8744 27 4 0 1000 syz-executor.0 [15498] 0 15498 18145 8742 27 4 0 1000 syz-executor.0 [15560] 0 15560 18178 8744 27 4 0 1000 syz-executor.0 [16024] 0 16024 18113 16 23 3 0 0 syz-executor.1 [16025] 0 16025 18112 8730 24 4 0 0 syz-executor.1 [16194] 0 16194 18178 8742 26 4 0 1000 syz-executor.1 [16198] 0 16198 18178 8742 26 4 0 1000 syz-executor.1 [16443] 0 16443 18178 8745 26 4 0 1000 syz-executor.5 [16870] 0 16870 18145 8744 26 4 0 1000 syz-executor.2 [17267] 0 17267 18178 8744 27 4 0 1000 syz-executor.0 [17356] 0 17356 18178 8744 27 4 0 1000 syz-executor.0 [17644] 0 17644 18178 8745 26 4 0 1000 syz-executor.1 [17704] 0 17704 18178 8744 27 4 0 1000 syz-executor.0 [17709] 0 17709 18145 8745 26 4 0 1000 syz-executor.5 [17727] 0 17727 18178 8744 27 4 0 1000 syz-executor.0 [17788] 0 17788 18178 8744 27 4 0 1000 syz-executor.0 [18015] 0 18015 18178 8745 26 4 0 1000 syz-executor.1 [18420] 0 18420 18113 17 23 3 0 0 syz-executor.3 [18421] 0 18421 18112 8729 24 4 0 0 syz-executor.3 [18675] 0 18675 18145 8709 26 3 0 1000 syz-executor.0 [18722] 0 18722 18145 8709 26 3 0 1000 syz-executor.0 [18812] 0 18812 18145 8709 26 3 0 1000 syz-executor.0 [18864] 0 18864 18178 8743 27 4 0 1000 syz-executor.0 [19521] 0 19521 5662 467 14 3 0 -1000 udevd [19522] 0 19522 5662 467 14 3 0 -1000 udevd [19523] 0 19523 5662 467 14 3 0 -1000 udevd [19524] 0 19524 5662 467 14 3 0 -1000 udevd xt_find_table_lock+0x35/0x3d0 net/netfilter/x_tables.c:1092 [19525] 0 19525 5662 467 14 3 0 -1000 udevd [19526] 0 19526 5662 468 14 3 0 -1000 udevd get_info+0x11b/0x580 net/ipv4/netfilter/arp_tables.c:801 [19528] 0 19528 5662 467 14 3 0 -1000 udevd [19529] 0 19529 5662 467 14 3 0 -1000 udevd [19530] 0 19530 5662 467 14 3 0 -1000 udevd [19531] 0 19531 5662 467 14 3 0 -1000 udevd [19534] 0 19534 5662 468 14 3 0 -1000 udevd [19535] 0 19535 5662 468 14 3 0 -1000 udevd [19536] 0 19536 5662 468 14 3 0 -1000 udevd [19537] 0 19537 5662 468 14 3 0 -1000 udevd [19543] 0 19543 5662 468 14 3 0 -1000 udevd [19544] 0 19544 5662 468 14 3 0 -1000 udevd [19550] 0 19550 5662 468 14 3 0 -1000 udevd [19554] 0 19554 5662 468 14 3 0 -1000 udevd [19555] 0 19555 5662 468 14 3 0 -1000 udevd [19560] 0 19560 5662 468 14 3 0 -1000 udevd [19563] 0 19563 5662 468 14 3 0 -1000 udevd [19564] 0 19564 5662 468 14 3 0 -1000 udevd [19565] 0 19565 5662 468 14 3 0 -1000 udevd [19566] 0 19566 5695 469 14 3 0 -1000 udevd [19568] 0 19568 5695 469 14 3 0 -1000 udevd [19569] 0 19569 5695 469 14 3 0 -1000 udevd [19571] 0 19571 5695 469 14 3 0 -1000 udevd [19572] 0 19572 5695 469 14 3 0 -1000 udevd [19573] 0 19573 5695 469 14 3 0 -1000 udevd [19575] 0 19575 5695 469 14 3 0 -1000 udevd [19576] 0 19576 5695 469 14 3 0 -1000 udevd [19577] 0 19577 5695 469 14 3 0 -1000 udevd [19578] 0 19578 5695 469 14 3 0 -1000 udevd [19579] 0 19579 5695 469 14 3 0 -1000 udevd [19580] 0 19580 5695 470 14 3 0 -1000 udevd [19582] 0 19582 5695 470 14 3 0 -1000 udevd [19583] 0 19583 5695 470 14 3 0 -1000 udevd [19590] 0 19590 5695 470 14 3 0 -1000 udevd [19595] 0 19595 5695 470 14 3 0 -1000 udevd [19596] 0 19596 5695 470 14 3 0 -1000 udevd [19598] 0 19598 5695 470 14 3 0 -1000 udevd [19599] 0 19599 5695 470 14 3 0 -1000 udevd [19600] 0 19600 5695 471 14 3 0 -1000 udevd [19603] 0 19603 5695 470 14 3 0 -1000 udevd [19606] 0 19606 5695 470 14 3 0 -1000 udevd INFO: task syz-executor.4:20189 blocked for more than 140 seconds. [19608] 0 19608 5695 470 14 3 0 -1000 udevd Not tainted 4.14.136+ #28 [19610] 0 19610 5695 471 14 3 0 -1000 udevd "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [19611] 0 19611 5695 471 14 3 0 -1000 udevd [19612] 0 19612 5695 471 14 3 0 -1000 udevd [19614] 0 19614 5695 471 14 3 0 -1000 udevd [19618] 0 19618 5695 471 14 3 0 -1000 udevd [19619] 0 19619 5695 471 14 3 0 -1000 udevd [19621] 0 19621 5695 471 14 3 0 -1000 udevd [19623] 0 19623 5695 471 14 3 0 -1000 udevd [19627] 0 19627 5695 471 14 3 0 -1000 udevd [19628] 0 19628 5695 471 14 3 0 -1000 udevd [19634] 0 19634 5695 471 14 3 0 -1000 udevd [19635] 0 19635 5695 471 14 3 0 -1000 udevd [19636] 0 19636 5695 472 14 3 0 -1000 udevd [19637] 0 19637 5695 472 14 3 0 -1000 udevd syz-executor.4 D [19639] 0 19639 5695 472 14 3 0 -1000 udevd 25512 20189 20188 0x00000000 [19640] 0 19640 5695 472 14 3 0 -1000 udevd Call Trace: [19641] 0 19641 5695 473 14 3 0 -1000 udevd [19643] 0 19643 5695 473 14 3 0 -1000 udevd [19644] 0 19644 5695 473 14 3 0 -1000 udevd [19646] 0 19646 5695 473 14 3 0 -1000 udevd [19647] 0 19647 5695 473 14 3 0 -1000 udevd [19648] 0 19648 5695 473 14 3 0 -1000 udevd [19650] 0 19650 5695 473 14 3 0 -1000 udevd [19651] 0 19651 5695 474 14 3 0 -1000 udevd [19658] 0 19658 5695 474 14 3 0 -1000 udevd [19659] 0 19659 5695 474 14 3 0 -1000 udevd [19663] 0 19663 5695 474 14 3 0 -1000 udevd [19664] 0 19664 5695 474 14 3 0 -1000 udevd [19665] 0 19665 5695 474 14 3 0 -1000 udevd [19667] 0 19667 5695 474 14 3 0 -1000 udevd [19670] 0 19670 5695 474 14 3 0 -1000 udevd [19671] 0 19671 5695 474 14 3 0 -1000 udevd [19675] 0 19675 5695 474 14 3 0 -1000 udevd [19676] 0 19676 5695 474 14 3 0 -1000 udevd [19677] 0 19677 5695 474 14 3 0 -1000 udevd [19681] 0 19681 5695 475 14 3 0 -1000 udevd [19684] 0 19684 5695 475 14 3 0 -1000 udevd [19685] 0 19685 5695 475 14 3 0 -1000 udevd [19687] 0 19687 5695 475 14 3 0 -1000 udevd [19688] 0 19688 5695 475 14 3 0 -1000 udevd [19697] 0 19697 5695 475 14 3 0 -1000 udevd [19698] 0 19698 5695 475 14 3 0 -1000 udevd [19699] 0 19699 5695 475 14 3 0 -1000 udevd [19701] 0 19701 5695 475 14 3 0 -1000 udevd [19703] 0 19703 5695 475 14 3 0 -1000 udevd [19704] 0 19704 5695 475 14 3 0 -1000 udevd [19705] 0 19705 5695 475 14 3 0 -1000 udevd [19707] 0 19707 5695 476 14 3 0 -1000 udevd [19709] 0 19709 5695 476 14 3 0 -1000 udevd [19710] 0 19710 5695 476 14 3 0 -1000 udevd [19711] 0 19711 5695 476 14 3 0 -1000 udevd [19712] 0 19712 5695 476 14 3 0 -1000 udevd [19715] 0 19715 5695 476 14 3 0 -1000 udevd [19719] 0 19719 5695 476 14 3 0 -1000 udevd [19720] 0 19720 5695 476 14 3 0 -1000 udevd [19722] 0 19722 5695 476 14 3 0 -1000 udevd [19723] 0 19723 5695 476 14 3 0 -1000 udevd [19726] 0 19726 5695 476 14 3 0 -1000 udevd [19729] 0 19729 5695 477 14 3 0 -1000 udevd [19730] 0 19730 5695 477 14 3 0 -1000 udevd [19732] 0 19732 5695 477 14 3 0 -1000 udevd [19735] 0 19735 5695 477 14 3 0 -1000 udevd [19736] 0 19736 5695 477 14 3 0 -1000 udevd [19737] 0 19737 5695 477 14 3 0 -1000 udevd [19740] 0 19740 5695 477 14 3 0 -1000 udevd [19743] 0 19743 5695 477 14 3 0 -1000 udevd [19744] 0 19744 5695 477 14 3 0 -1000 udevd [19745] 0 19745 5695 477 14 3 0 -1000 udevd [19748] 0 19748 5695 477 14 3 0 -1000 udevd [19749] 0 19749 5695 477 14 3 0 -1000 udevd [19751] 0 19751 5695 478 14 3 0 -1000 udevd [19752] 0 19752 5695 478 14 3 0 -1000 udevd [19759] 0 19759 5695 478 14 3 0 -1000 udevd [19760] 0 19760 5695 478 14 3 0 -1000 udevd [19763] 0 19763 5695 478 14 3 0 -1000 udevd [19764] 0 19764 5695 478 14 3 0 -1000 udevd [19768] 0 19768 5695 478 14 3 0 -1000 udevd schedule+0x92/0x1c0 kernel/sched/core.c:3498 [19772] 0 19772 5695 478 14 3 0 -1000 udevd schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:3556 [19773] 0 19773 5695 478 14 3 0 -1000 udevd [19774] 0 19774 5695 478 14 3 0 -1000 udevd [19775] 0 19775 5695 478 14 3 0 -1000 udevd [19781] 0 19781 5695 478 14 3 0 -1000 udevd [19782] 0 19782 5695 479 14 3 0 -1000 udevd [19783] 0 19783 5695 479 14 3 0 -1000 udevd [19792] 0 19792 5695 479 14 3 0 -1000 udevd [19793] 0 19793 5695 479 14 3 0 -1000 udevd [19794] 0 19794 5695 479 14 3 0 -1000 udevd [19795] 0 19795 5695 479 14 3 0 -1000 udevd [19796] 0 19796 5695 479 14 3 0 -1000 udevd [19797] 0 19797 5695 479 14 3 0 -1000 udevd [19799] 0 19799 5695 479 14 3 0 -1000 udevd [19800] 0 19800 5695 479 14 3 0 -1000 udevd [19801] 0 19801 5695 479 14 3 0 -1000 udevd [19802] 0 19802 5695 480 14 3 0 -1000 udevd [19807] 0 19807 5695 480 14 3 0 -1000 udevd [19808] 0 19808 5695 480 14 3 0 -1000 udevd [19809] 0 19809 5695 480 14 3 0 -1000 udevd [19814] 0 19814 5695 480 14 3 0 -1000 udevd [19815] 0 19815 5695 480 14 3 0 -1000 udevd [19816] 0 19816 5695 480 14 3 0 -1000 udevd [19817] 0 19817 5695 480 14 3 0 -1000 udevd [19818] 0 19818 5695 480 14 3 0 -1000 udevd [19820] 0 19820 5695 480 14 3 0 -1000 udevd [19821] 0 19821 5695 480 14 3 0 -1000 udevd [19822] 0 19822 5695 480 14 3 0 -1000 udevd [19823] 0 19823 5695 481 14 3 0 -1000 udevd [19824] 0 19824 5695 481 14 3 0 -1000 udevd [19825] 0 19825 5695 481 14 3 0 -1000 udevd [19826] 0 19826 5695 481 14 3 0 -1000 udevd [19828] 0 19828 5695 481 14 3 0 -1000 udevd [19838] 0 19838 5695 481 14 3 0 -1000 udevd [19839] 0 19839 5695 481 14 3 0 -1000 udevd [19843] 0 19843 5695 481 14 3 0 -1000 udevd [19844] 0 19844 5695 481 14 3 0 -1000 udevd [19845] 0 19845 5695 481 14 3 0 -1000 udevd [19846] 0 19846 5695 481 14 3 0 -1000 udevd [19847] 0 19847 5695 482 14 3 0 -1000 udevd [19848] 0 19848 5695 482 14 3 0 -1000 udevd __mutex_lock_common kernel/locking/mutex.c:833 [inline] __mutex_lock+0x595/0x13e0 kernel/locking/mutex.c:893 [19857] 0 19857 5695 482 14 3 0 -1000 udevd xt_find_table_lock+0x35/0x3d0 net/netfilter/x_tables.c:1092 [19858] 0 19858 5695 482 14 3 0 -1000 udevd [19861] 0 19861 5695 482 14 3 0 -1000 udevd [19864] 0 19864 5695 482 14 3 0 -1000 udevd get_info+0x11b/0x580 net/ipv4/netfilter/arp_tables.c:801 [19868] 0 19868 5695 482 14 3 0 -1000 udevd [19869] 0 19869 18178 8744 27 4 0 1000 syz-executor.0 [19870] 0 19870 5695 482 14 3 0 -1000 udevd [19871] 0 19871 5695 482 14 3 0 -1000 udevd [19876] 0 19876 5695 482 14 3 0 -1000 udevd [19877] 0 19877 5695 482 14 3 0 -1000 udevd [19879] 0 19879 5695 482 14 3 0 -1000 udevd [19881] 0 19881 5695 483 14 3 0 -1000 udevd [19886] 0 19886 5695 483 14 3 0 -1000 udevd [19887] 0 19887 5695 483 14 3 0 -1000 udevd [19891] 0 19891 5695 483 14 3 0 -1000 udevd [19892] 0 19892 5695 483 14 3 0 -1000 udevd [19897] 0 19897 5695 483 14 3 0 -1000 udevd [19899] 0 19899 5695 483 14 3 0 -1000 udevd [19902] 0 19902 5695 483 14 3 0 -1000 udevd [19903] 0 19903 5695 483 14 3 0 -1000 udevd [19905] 0 19905 5695 483 14 3 0 -1000 udevd [19908] 0 19908 5695 483 14 3 0 -1000 udevd [19913] 0 19913 5695 483 14 3 0 -1000 udevd [19914] 0 19914 5695 484 14 3 0 -1000 udevd [19919] 0 19919 5695 484 14 3 0 -1000 udevd [19920] 0 19920 5695 484 14 3 0 -1000 udevd [19922] 0 19922 5695 484 14 3 0 -1000 udevd [19925] 0 19925 5695 484 14 3 0 -1000 udevd [19926] 0 19926 5695 484 14 3 0 -1000 udevd [19934] 0 19934 5695 484 14 3 0 -1000 udevd [19935] 0 19935 5695 484 14 3 0 -1000 udevd [19939] 0 19939 5695 484 14 3 0 -1000 udevd [19940] 0 19940 5695 484 14 3 0 -1000 udevd [19944] 0 19944 5695 484 14 3 0 -1000 udevd [19949] 0 19949 5695 485 14 3 0 -1000 udevd [19950] 0 19950 5695 485 14 3 0 -1000 udevd Showing all locks held in the system: [19953] 0 19953 5695 485 14 3 0 -1000 udevd 1 lock held by init/1: [19954] 0 19954 5695 485 14 3 0 -1000 udevd #0: [19956] 0 19956 5695 485 14 3 0 -1000 udevd ( [19957] 0 19957 5695 485 14 3 0 -1000 udevd &ei->i_mmap_sem [19959] 0 19959 5695 485 14 3 0 -1000 udevd ){++++}, at: [<000000008406e8f4>] ext4_filemap_fault+0x7c/0xb0 fs/ext4/inode.c:6196 1 lock held by khungtaskd/23: #0: [19968] 0 19968 5695 485 14 3 0 -1000 udevd ( [19970] 0 19970 5695 485 14 3 0 -1000 udevd tasklist_lock){.+.+}, at: [<00000000d598292e>] debug_show_all_locks+0x7c/0x21a kernel/locking/lockdep.c:4541 1 lock held by udevd/191: [19977] 0 19977 5695 485 14 3 0 -1000 udevd #0: [19978] 0 19978 5695 485 14 3 0 -1000 udevd ( [19980] 0 19980 5695 485 14 3 0 -1000 udevd &ei->i_mmap_sem){++++}, at: [<000000008406e8f4>] ext4_filemap_fault+0x7c/0xb0 fs/ext4/inode.c:6196 1 lock held by rsyslogd/1632: [19986] 0 19986 5695 486 14 3 0 -1000 udevd #0: (&ei->i_mmap_sem){++++}, at: [<000000008406e8f4>] ext4_filemap_fault+0x7c/0xb0 fs/ext4/inode.c:6196 1 lock held by cron/1677: #0: (&ei->i_mmap_sem){++++}, at: [<000000008406e8f4>] ext4_filemap_fault+0x7c/0xb0 fs/ext4/inode.c:6196 2 locks held by getty/1760: #0: (&tty->ldisc_sem){++++}, at: [<00000000d99039e4>] tty_ldisc_ref_wait+0x22/0x80 drivers/tty/tty_ldisc.c:284 #1: (&ldata->atomic_read_lock){+.+.}, at: [<00000000aeab4402>] n_tty_read+0x1f7/0x1700 drivers/tty/n_tty.c:2156 1 lock held by syz-fuzzer/1778: #0: (&ei->i_mmap_sem){++++}, at: [<000000008406e8f4>] ext4_filemap_fault+0x7c/0xb0 fs/ext4/inode.c:6196 1 lock held by syz-fuzzer/1779: #0: (&ei->i_mmap_sem){++++}, at: [<000000008406e8f4>] ext4_filemap_fault+0x7c/0xb0 fs/ext4/inode.c:6196 1 lock held by syz-fuzzer/1792: #0: (&ei->i_mmap_sem){++++}, at: [<000000008406e8f4>] ext4_filemap_fault+0x7c/0xb0 fs/ext4/inode.c:6196 1 lock held by udevd/3042: #0: (&ei->i_mmap_sem){++++}, at: [<000000008406e8f4>] ext4_filemap_fault+0x7c/0xb0 fs/ext4/inode.c:6196 1 lock held by syz-executor.0/10319: #0: (&xt[i].mutex){+.+.}, at: [<0000000095bb93fe>] xt_find_table_lock+0x35/0x3d0 net/netfilter/x_tables.c:1092 1 lock held by udevd/13223: #0: (&ei->i_mmap_sem){++++}, at: [<000000008406e8f4>] ext4_filemap_fault+0x7c/0xb0 fs/ext4/inode.c:6196 1 lock held by udevd/13686: #0: (&ei->i_mmap_sem){++++}, at: [<000000008406e8f4>] ext4_filemap_fault+0x7c/0xb0 fs/ext4/inode.c:6196 1 lock held by udevd/19521: #0: (&ei->i_mmap_sem){++++}, at: [<000000008406e8f4>] ext4_filemap_fault+0x7c/0xb0 fs/ext4/inode.c:6196 1 lock held by udevd/19524: #0: (&ei->i_mmap_sem){++++}, at: [<000000008406e8f4>] ext4_filemap_fault+0x7c/0xb0 fs/ext4/inode.c:6196 1 lock held by udevd/19528: #0: (&ei->i_mmap_sem){++++}, at: [<000000008406e8f4>] ext4_filemap_fault+0x7c/0xb0 fs/ext4/inode.c:6196 1 lock held by udevd/19529: #0: (&ei->i_mmap_sem){++++}, at: [<000000008406e8f4>] ext4_filemap_fault+0x7c/0xb0 fs/ext4/inode.c:6196 1 lock held by udevd/19530: #0: (&ei->i_mmap_sem){++++}, at: [<000000008406e8f4>] ext4_filemap_fault+0x7c/0xb0 fs/ext4/inode.c:6196 1 lock held by udevd/19531: #0: (&ei->i_mmap_sem){++++}, at: [<000000008406e8f4>] ext4_filemap_fault+0x7c/0xb0 fs/ext4/inode.c:6196 1 lock held by udevd/19536: #0: (&ei->i_mmap_sem){++++}, at: [<000000008406e8f4>] ext4_filemap_fault+0x7c/0xb0 fs/ext4/inode.c:6196 1 lock held by udevd/19537: #0: (&ei->i_mmap_sem){++++}, at: [<000000008406e8f4>] ext4_filemap_fault+0x7c/0xb0 fs/ext4/inode.c:6196 1 lock held by udevd/19543: #0: (&ei->i_mmap_sem){++++}, at: [<000000008406e8f4>] ext4_filemap_fault+0x7c/0xb0 fs/ext4/inode.c:6196 1 lock held by udevd/19563: #0: (&ei->i_mmap_sem){++++}, at: [<000000008406e8f4>] ext4_filemap_fault+0x7c/0xb0 fs/ext4/inode.c:6196 1 lock held by udevd/19564: #0: (&ei->i_mmap_sem){++++}, at: [<000000008406e8f4>] ext4_filemap_fault+0x7c/0xb0 fs/ext4/inode.c:6196 1 lock held by udevd/19569: #0: (&ei->i_mmap_sem){++++}, at: [<000000008406e8f4>] ext4_filemap_fault+0x7c/0xb0 fs/ext4/inode.c:6196 1 lock held by udevd/19571: #0: (&ei->i_mmap_sem){++++}, at: [<000000008406e8f4>] ext4_filemap_fault+0x7c/0xb0 fs/ext4/inode.c:6196 1 lock held by udevd/19573: #0: (&ei->i_mmap_sem){++++}, at: [<000000008406e8f4>] ext4_filemap_fault+0x7c/0xb0 fs/ext4/inode.c:6196 1 lock held by udevd/19582: #0: (&ei->i_mmap_sem){++++}, at: [<000000008406e8f4>] ext4_filemap_fault+0x7c/0xb0 fs/ext4/inode.c:6196 1 lock held by udevd/19595: #0: (&ei->i_mmap_sem){++++}, at: [<000000008406e8f4>] ext4_filemap_fault+0x7c/0xb0 fs/ext4/inode.c:6196 1 lock held by udevd/19598: #0: (&ei->i_mmap_sem){++++}, at: [<000000008406e8f4>] ext4_filemap_fault+0x7c/0xb0 fs/ext4/inode.c:6196 1 lock held by udevd/19599: #0: (&ei->i_mmap_sem){++++}, at: [<000000008406e8f4>] ext4_filemap_fault+0x7c/0xb0 fs/ext4/inode.c:6196 1 lock held by udevd/19600: #0: (&ei->i_mmap_sem){++++}, at: [<000000008406e8f4>] ext4_filemap_fault+0x7c/0xb0 fs/ext4/inode.c:6196 1 lock held by udevd/19603: #0: (&ei->i_mmap_sem){++++}, at: [<000000008406e8f4>] ext4_filemap_fault+0x7c/0xb0 fs/ext4/inode.c:6196 1 lock held by udevd/19606: #0: (&ei->i_mmap_sem){++++}, at: [<000000008406e8f4>] ext4_filemap_fault+0x7c/0xb0 fs/ext4/inode.c:6196 1 lock held by udevd/19608: #0: (&ei->i_mmap_sem){++++}, at: [<000000008406e8f4>] ext4_filemap_fault+0x7c/0xb0 fs/ext4/inode.c:6196 1 lock held by udevd/19612: #0: (&ei->i_mmap_sem){++++}, at: [<000000008406e8f4>] ext4_filemap_fault+0x7c/0xb0 fs/ext4/inode.c:6196 1 lock held by udevd/19621: #0: (&ei->i_mmap_sem){++++}, at: [<000000008406e8f4>] ext4_filemap_fault+0x7c/0xb0 fs/ext4/inode.c:6196 1 lock held by udevd/19627: #0: (&ei->i_mmap_sem){++++}, at: [<000000008406e8f4>] ext4_filemap_fault+0x7c/0xb0 fs/ext4/inode.c:6196 1 lock held by udevd/19639: #0: (&ei->i_mmap_sem){++++}, at: [<000000008406e8f4>] ext4_filemap_fault+0x7c/0xb0 fs/ext4/inode.c:6196 1 lock held by syz-executor.4/20189: #0: (&xt[i].mutex){+.+.}, at: [<0000000095bb93fe>] xt_find_table_lock+0x35/0x3d0 net/netfilter/x_tables.c:1092 1 lock held by blkid/27270: [19987] 0 19987 5695 486 14 3 0 -1000 udevd #0: (&ei->i_mmap_sem){++++}, at: [<000000008406e8f4>] ext4_filemap_fault+0x7c/0xb0 fs/ext4/inode.c:6196 1 lock held by blkid/27272: #0: (&mm->mmap_sem){++++}, at: [<00000000383f4e54>] __do_page_fault+0x282/0xbb0 arch/x86/mm/fault.c:1352 1 lock held by blkid/27273: #0: (&ei->i_mmap_sem){++++}, at: [<000000008406e8f4>] ext4_filemap_fault+0x7c/0xb0 fs/ext4/inode.c:6196 1 lock held by blkid/27274: #0: (&ei->i_mmap_sem){++++}, at: [<000000008406e8f4>] ext4_filemap_fault+0x7c/0xb0 fs/ext4/inode.c:6196 1 lock held by blkid/27277: #0: (&ei->i_mmap_sem){++++}, at: [<000000008406e8f4>] ext4_filemap_fault+0x7c/0xb0 fs/ext4/inode.c:6196 1 lock held by blkid/27282: #0: (&mm->mmap_sem){++++}, at: [<00000000383f4e54>] __do_page_fault+0x282/0xbb0 arch/x86/mm/fault.c:1352 1 lock held by blkid/27283: #0: (&ei->i_mmap_sem){++++}, at: [<000000008406e8f4>] ext4_filemap_fault+0x7c/0xb0 fs/ext4/inode.c:6196 1 lock held by blkid/27284: #0: (&mm->mmap_sem){++++}, at: [<00000000383f4e54>] __do_page_fault+0x282/0xbb0 arch/x86/mm/fault.c:1352 1 lock held by blkid/27287: #0: (&ei->i_mmap_sem){++++}, at: [<000000008406e8f4>] ext4_filemap_fault+0x7c/0xb0 fs/ext4/inode.c:6196 1 lock held by blkid/27353: #0: (&mm->mmap_sem){++++}, at: [<00000000383f4e54>] __do_page_fault+0x282/0xbb0 arch/x86/mm/fault.c:1352 1 lock held by blkid/27354: #0: (&mm->mmap_sem){++++}, at: [<00000000383f4e54>] __do_page_fault+0x282/0xbb0 arch/x86/mm/fault.c:1352 1 lock held by blkid/27358: #0: (&mm->mmap_sem){++++}, at: [<00000000383f4e54>] __do_page_fault+0x282/0xbb0 arch/x86/mm/fault.c:1352 1 lock held by blkid/27379: #0: (&ei->i_mmap_sem){++++}, at: [<000000008406e8f4>] ext4_filemap_fault+0x7c/0xb0 fs/ext4/inode.c:6196 1 lock held by blkid/27587: #0: (&ei->i_mmap_sem){++++}, at: [<000000008406e8f4>] ext4_filemap_fault+0x7c/0xb0 fs/ext4/inode.c:6196 1 lock held by blkid/27588: #0: (&ei->i_mmap_sem){++++}, at: [<000000008406e8f4>] ext4_filemap_fault+0x7c/0xb0 fs/ext4/inode.c:6196 1 lock held by blkid/27589: #0: (&mm->mmap_sem){++++}, at: [<00000000383f4e54>] __do_page_fault+0x282/0xbb0 arch/x86/mm/fault.c:1352 1 lock held by blkid/27590: #0: (&mm->mmap_sem){++++}, at: [<00000000383f4e54>] __do_page_fault+0x282/0xbb0 arch/x86/mm/fault.c:1352 1 lock held by blkid/27591: #0: (&mm->mmap_sem){++++}, at: [<00000000383f4e54>] __do_page_fault+0x282/0xbb0 arch/x86/mm/fault.c:1352 1 lock held by blkid/27593: #0: (&mm->mmap_sem){++++}, at: [<00000000383f4e54>] __do_page_fault+0x282/0xbb0 arch/x86/mm/fault.c:1352 1 lock held by blkid/27594: #0: (&mm->mmap_sem){++++}, at: [<00000000383f4e54>] __do_page_fault+0x282/0xbb0 arch/x86/mm/fault.c:1352 1 lock held by blkid/27596: #0: (&mm->mmap_sem){++++}, at: [<00000000383f4e54>] __do_page_fault+0x282/0xbb0 arch/x86/mm/fault.c:1352 1 lock held by blkid/27597: #0: (&ei->i_mmap_sem){++++}, at: [<000000008406e8f4>] ext4_filemap_fault+0x7c/0xb0 fs/ext4/inode.c:6196 1 lock held by blkid/27599: #0: (&ei->i_mmap_sem){++++}, at: [<000000008406e8f4>] ext4_filemap_fault+0x7c/0xb0 fs/ext4/inode.c:6196 1 lock held by blkid/27600: #0: (&mm->mmap_sem){++++}, at: [<00000000383f4e54>] __do_page_fault+0x282/0xbb0 arch/x86/mm/fault.c:1352 1 lock held by blkid/27601: #0: (&ei->i_mmap_sem){++++}, at: [<000000008406e8f4>] ext4_filemap_fault+0x7c/0xb0 fs/ext4/inode.c:6196 1 lock held by blkid/27604: [19990] 0 19990 5695 486 14 3 0 -1000 udevd #0: (&ei->i_mmap_sem){++++}, at: [<000000008406e8f4>] ext4_filemap_fault+0x7c/0xb0 fs/ext4/inode.c:6196 [19991] 0 19991 5695 486 14 3 0 -1000 udevd 1 lock held by blkid/27605: #0: (&ei->i_mmap_sem){++++}, at: [<000000008406e8f4>] ext4_filemap_fault+0x7c/0xb0 fs/ext4/inode.c:6196 1 lock held by blkid/27606: #0: (&mm->mmap_sem){++++}, at: [<00000000383f4e54>] __do_page_fault+0x282/0xbb0 arch/x86/mm/fault.c:1352 1 lock held by blkid/27607: #0: (&mm->mmap_sem){++++}, at: [<00000000383f4e54>] __do_page_fault+0x282/0xbb0 arch/x86/mm/fault.c:1352 1 lock held by blkid/27608: #0: (&mm->mmap_sem){++++}, at: [<00000000383f4e54>] __do_page_fault+0x282/0xbb0 arch/x86/mm/fault.c:1352 1 lock held by blkid/27609: #0: (&mm->mmap_sem){++++}, at: [<00000000383f4e54>] __do_page_fault+0x282/0xbb0 arch/x86/mm/fault.c:1352 1 lock held by blkid/27610: #0: (&mm->mmap_sem){++++}, at: [<00000000383f4e54>] __do_page_fault+0x282/0xbb0 arch/x86/mm/fault.c:1352 1 lock held by blkid/27612: #0: (&mm->mmap_sem){++++}, at: [<00000000383f4e54>] __do_page_fault+0x282/0xbb0 arch/x86/mm/fault.c:1352 1 lock held by blkid/27613: #0: (&ei->i_mmap_sem){++++}, at: [<000000008406e8f4>] ext4_filemap_fault+0x7c/0xb0 fs/ext4/inode.c:6196 1 lock held by blkid/27614: #0: (&mm->mmap_sem){++++}, at: [<00000000383f4e54>] __do_page_fault+0x282/0xbb0 arch/x86/mm/fault.c:1352 1 lock held by blkid/27616: #0: (&mm->mmap_sem){++++}, at: [<00000000383f4e54>] __do_page_fault+0x282/0xbb0 arch/x86/mm/fault.c:1352 1 lock held by blkid/27619: #0: (&mm->mmap_sem){++++}, at: [<00000000383f4e54>] __do_page_fault+0x282/0xbb0 arch/x86/mm/fault.c:1352 1 lock held by blkid/27622: #0: (&ei->i_mmap_sem){++++}, at: [<000000008406e8f4>] ext4_filemap_fault+0x7c/0xb0 fs/ext4/inode.c:6196 1 lock held by blkid/27623: #0: (&mm->mmap_sem){++++}, at: [<00000000383f4e54>] __do_page_fault+0x282/0xbb0 arch/x86/mm/fault.c:1352 1 lock held by blkid/27624: #0: (&ei->i_mmap_sem){++++}, at: [<000000008406e8f4>] ext4_filemap_fault+0x7c/0xb0 fs/ext4/inode.c:6196 1 lock held by blkid/27625: #0: (&mm->mmap_sem){++++}, at: [<00000000383f4e54>] __do_page_fault+0x282/0xbb0 arch/x86/mm/fault.c:1352 1 lock held by blkid/27626: #0: (&ei->i_mmap_sem){++++}, at: [<000000008406e8f4>] ext4_filemap_fault+0x7c/0xb0 fs/ext4/inode.c:6196 1 lock held by blkid/27627: #0: (&ei->i_mmap_sem){++++}, at: [<000000008406e8f4>] ext4_filemap_fault+0x7c/0xb0 fs/ext4/inode.c:6196 [19993] 0 19993 5695 486 14 3 0 -1000 udevd 1 lock held by blkid/27628: #0: (&mm->mmap_sem){++++}, at: [<00000000383f4e54>] __do_page_fault+0x282/0xbb0 arch/x86/mm/fault.c:1352 1 lock held by blkid/27629: [19994] 0 19994 5695 486 14 3 0 -1000 udevd #0: (&ei->i_mmap_sem){++++}, at: [<000000008406e8f4>] ext4_filemap_fault+0x7c/0xb0 fs/ext4/inode.c:6196 1 lock held by blkid/27630: #0: (&ei->i_mmap_sem){++++}, at: [<000000008406e8f4>] ext4_filemap_fault+0x7c/0xb0 fs/ext4/inode.c:6196 1 lock held by blkid/27632: #0: (&mm->mmap_sem){++++}, at: [<00000000383f4e54>] __do_page_fault+0x282/0xbb0 arch/x86/mm/fault.c:1352 1 lock held by blkid/27633: #0: (&ei->i_mmap_sem){++++}, at: [<000000008406e8f4>] ext4_filemap_fault+0x7c/0xb0 fs/ext4/inode.c:6196 1 lock held by blkid/27634: #0: (&ei->i_mmap_sem){++++}, at: [<000000008406e8f4>] ext4_filemap_fault+0x7c/0xb0 fs/ext4/inode.c:6196 1 lock held by getty/27788: #0: (&ei->i_mmap_sem){++++}, at: [<000000008406e8f4>] ext4_filemap_fault+0x7c/0xb0 fs/ext4/inode.c:6196 1 lock held by getty/27789: #0: (&ei->i_mmap_sem){++++}, at: [<000000008406e8f4>] ext4_filemap_fault+0x7c/0xb0 fs/ext4/inode.c:6196 1 lock held by getty/27798: #0: (&ei->i_mmap_sem){++++}, at: [<000000008406e8f4>] ext4_filemap_fault+0x7c/0xb0 fs/ext4/inode.c:6196 1 lock held by getty/27800: #0: (&ei->i_mmap_sem){++++}, at: [<000000008406e8f4>] ext4_filemap_fault+0x7c/0xb0 fs/ext4/inode.c:6196 1 lock held by getty/27802: #0: (&ei->i_mmap_sem){++++}, at: [<000000008406e8f4>] ext4_filemap_fault+0x7c/0xb0 fs/ext4/inode.c:6196 1 lock held by getty/27805: #0: (&ei->i_mmap_sem){++++}, at: [<000000008406e8f4>] ext4_filemap_fault+0x7c/0xb0 fs/ext4/inode.c:6196 ============================================= NMI backtrace for cpu 0 [20001] 0 20001 5695 486 14 3 0 -1000 udevd CPU: 0 PID: 23 Comm: khungtaskd Not tainted 4.14.136+ #28 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0xca/0x134 lib/dump_stack.c:53 nmi_cpu_backtrace.cold+0x47/0x86 lib/nmi_backtrace.c:101 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 16025 Comm: syz-executor.1 Not tainted 4.14.136+ #28 task: 00000000642a024f task.stack: 00000000dcec2219 RIP: 0010:rcu_read_lock_sched_held+0xad/0x130 kernel/rcu/update.c:115 RSP: 0000:ffff8881dbb07d18 EFLAGS: 00000206 RAX: dffffc0000000000 RBX: 0000000000000003 RCX: 0000000000000000 RDX: 1ffffffff6982880 RSI: ffffffffb4549100 RDI: 0000000000000001 RBP: ffff8881dbb07d58 R08: 0000000000000001 R09: ffffed103b7644fa R10: ffffed103b7644f9 R11: ffff8881dbb227cf R12: ffff8881d47071f0 R13: 1ffff1103b760fa7 R14: ffffffffb2868af0 R15: ffff8881d4768000 FS: 0000000001641940(0000) GS:ffff8881dbb00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007efc92fb2e92 CR3: 00000001a767c003 CR4: 00000000001606a0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: trace_timer_expire_exit include/trace/events/timer.h:121 [inline] call_timer_fn+0x2d6/0x6a0 kernel/time/timer.c:1280 expire_timers+0x227/0x4c0 kernel/time/timer.c:1318 __run_timers kernel/time/timer.c:1634 [inline] run_timer_softirq+0x1eb/0x5d0 kernel/time/timer.c:1647 __do_softirq+0x234/0x9ec kernel/softirq.c:288 invoke_softirq kernel/softirq.c:368 [inline] irq_exit+0x114/0x150 kernel/softirq.c:409 exiting_irq arch/x86/include/asm/apic.h:648 [inline] smp_apic_timer_interrupt+0x1a7/0x650 arch/x86/kernel/apic/apic.c:1064 apic_timer_interrupt+0x84/0x90 arch/x86/entry/entry_64.S:789 RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:778 [inline] RIP: 0010:console_trylock_spinning kernel/printk/printk.c:1679 [inline] RIP: 0010:vprintk_emit+0x302/0x330 kernel/printk/printk.c:1916 RSP: 0000:ffff8881a7637640 EFLAGS: 00000297 ORIG_RAX: ffffffffffffff10 RAX: 0000000000000007 RBX: 0000000000000297 RCX: 1ffff11033f7a119 RDX: 0000000000000000 RSI: ffff88819fbd08a8 RDI: 0000000000000297 RBP: ffff8881a7637678 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000052 R13: 0000000000000000 R14: ffff8881a76376d0 R15: ffff8881daae4680 vprintk_func+0x58/0x152 kernel/printk/printk_safe.c:401 printk+0xba/0xed kernel/printk/printk.c:1990 dump_tasks mm/oom_kill.c:396 [inline] dump_header+0x7ab/0x848 mm/oom_kill.c:428 oom_kill_process.cold+0x10/0xde6 mm/oom_kill.c:861 Code: 5b c3 e8 b7 ea 00 00 84 c0 74 4a e8 be 9f 00 00 84 c0 74 41 48 b8 00 00 00 00 00 fc ff df 48 89 da 83 e3 07 48 c1 ea 03 83 c3 03 <0f> b6 04 02 38 c3 7c 04 84 c0 75 5b 8b 05 91 21 3d 02 85 c0 75