[23492] 0 23492 18277 9005 28 4 0 0 syz-executor.3 [23565] 0 23565 18145 8743 25 3 0 0 syz-executor.4 [23569] 0 23569 18211 8749 25 3 0 0 syz-executor.4 INFO: task syz-executor.3:1850 blocked for more than 140 seconds. Not tainted 4.14.131+ #13 [23599] 0 23599 18113 225 23 3 0 0 syz-executor.0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.3 D23744 1850 1834 0x00000000 Call Trace: [23600] 0 23600 18112 8940 24 4 0 0 syz-executor.0 schedule+0x92/0x1c0 kernel/sched/core.c:3498 schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:3556 __mutex_lock_common kernel/locking/mutex.c:833 [inline] __mutex_lock+0x559/0x1430 kernel/locking/mutex.c:893 [23852] 0 23852 18145 8972 26 4 0 0 syz-executor.5 [24213] 0 24213 18244 8993 27 4 0 0 syz-executor.3 [24230] 0 24230 18145 8733 24 3 0 1000 syz-executor.0 [24261] 0 24261 18244 8993 27 4 0 0 syz-executor.3 [24285] 0 24285 18145 8747 25 3 0 0 syz-executor.5 [24338] 0 24338 18145 8990 26 4 0 0 syz-executor.3 [24365] 0 24365 18211 8989 26 4 0 0 syz-executor.4 xt_find_table_lock+0x35/0x3d0 net/netfilter/x_tables.c:1092 [24386] 0 24386 18178 8994 26 4 0 0 syz-executor.3 [24613] 0 24613 18178 8974 26 4 0 0 syz-executor.5 get_info+0x11b/0x580 net/ipv4/netfilter/arp_tables.c:801 [24721] 0 24721 18190 8971 27 4 0 1000 syz-executor.0 [24918] 0 24918 18113 225 23 3 0 0 syz-executor.2 [24919] 0 24919 18112 8941 24 4 0 0 syz-executor.2 [25109] 0 25109 18211 8977 26 4 0 0 syz-executor.5 [25159] 0 25159 18211 8975 32 4 0 0 syz-executor.5 [25167] 0 25167 18145 8965 26 4 0 1000 syz-executor.2 [25398] 0 25398 18244 8974 27 4 0 1000 syz-executor.2 [25413] 0 25413 18211 8970 26 4 0 1000 syz-executor.0 [25487] 0 25487 18178 8996 26 4 0 0 syz-executor.3 [25533] 0 25533 5629 406 15 3 0 -1000 udevd [25568] 0 25568 18178 8969 27 4 0 1000 syz-executor.2 [25597] 0 25597 18145 8743 25 3 0 1000 syz-executor.0 [25633] 0 25633 18211 8753 26 3 0 1000 syz-executor.0 [25673] 0 25673 18211 8998 26 4 0 0 syz-executor.3 [25688] 0 25688 18178 9008 26 4 0 0 syz-executor.3 [25700] 0 25700 18145 9005 26 4 0 0 syz-executor.3 [25707] 0 25707 18178 8745 25 3 0 0 syz-executor.4 INFO: task syz-executor.0:23600 blocked for more than 140 seconds. Not tainted 4.14.131+ #13 [25709] 0 25709 18178 9008 26 4 0 0 syz-executor.3 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [25719] 0 25719 18211 8747 25 3 0 0 syz-executor.4 [25975] 0 25975 18244 8994 27 4 0 0 syz-executor.3 [26044] 0 26044 18178 8996 26 4 0 0 syz-executor.3 syz-executor.0 D25640 23600 23599 0x00000000 Call Trace: [26096] 0 26096 18145 8970 25 4 0 0 syz-executor.5 [26184] 0 26184 18178 8745 25 3 0 0 syz-executor.4 [26197] 0 26197 18244 8996 27 4 0 0 syz-executor.4 [26219] 0 26219 18201 8975 26 4 0 0 syz-executor.5 schedule+0x92/0x1c0 kernel/sched/core.c:3498 [26254] 0 26254 18244 8972 27 4 0 1000 syz-executor.2 schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:3556 [26430] 0 26430 18211 8975 26 4 0 0 syz-executor.5 [26454] 0 26454 18211 8975 26 4 0 0 syz-executor.5 [26505] 0 26505 18145 8746 24 3 0 0 syz-executor.5 __mutex_lock_common kernel/locking/mutex.c:833 [inline] __mutex_lock+0x559/0x1430 kernel/locking/mutex.c:893 [26506] 0 26506 18145 8746 24 3 0 0 syz-executor.5 [26544] 0 26544 18178 8989 26 4 0 0 syz-executor.4 [26626] 0 26626 18211 8997 26 4 0 0 syz-executor.3 [26639] 0 26639 18145 8744 24 3 0 0 syz-executor.3 [26652] 0 26652 18178 8746 24 3 0 0 syz-executor.3 [26714] 0 26714 18145 8745 25 3 0 0 syz-executor.3 [26843] 0 26843 18244 8999 27 4 0 0 syz-executor.3 [26850] 0 26850 18211 8972 28 4 0 1000 syz-executor.2 [26933] 0 26933 34629 9037 29 4 0 0 syz-executor.3 [27015] 0 27015 18244 8978 27 4 0 0 syz-executor.5 [27032] 0 27032 18244 8978 27 4 0 0 syz-executor.5 [27067] 0 27067 18211 8993 26 4 0 0 syz-executor.3 [27130] 0 27130 18178 8991 26 4 0 0 syz-executor.3 [27225] 0 27225 18211 8976 26 4 0 0 syz-executor.5 [27238] 0 27238 18145 8971 26 4 0 0 syz-executor.5 [27304] 0 27304 18211 8970 27 4 0 1000 syz-executor.2 [27366] 0 27366 18145 8743 26 3 0 1000 syz-executor.2 [27370] 0 27370 18211 8973 28 4 0 1000 syz-executor.2 [27373] 0 27373 18211 8749 27 3 0 1000 syz-executor.2 [27432] 0 27432 18145 8985 26 4 0 0 syz-executor.4 kernfs_iop_permission+0x4e/0x90 fs/kernfs/inode.c:301 do_inode_permission fs/namei.c:386 [inline] __inode_permission2+0x22c/0x2c0 fs/namei.c:428 inode_permission2+0x2d/0x100 fs/namei.c:485 may_lookup fs/namei.c:1731 [inline] link_path_walk+0x894/0x1110 fs/namei.c:2111 [27434] 0 27434 18178 8968 26 4 0 1000 syz-executor.2 [27505] 0 27505 18178 8972 26 4 0 1000 syz-executor.2 [27584] 0 27584 18244 8978 26 4 0 0 syz-executor.5 [27612] 0 27612 18145 8972 26 4 0 0 syz-executor.5 [27669] 0 27669 18145 8743 25 3 0 1000 syz-executor.2 [27672] 0 27672 18145 8992 26 4 0 0 syz-executor.4 [27688] 0 27688 18178 8745 25 3 0 1000 syz-executor.2 [27845] 0 27845 18211 8753 26 3 0 0 syz-executor.5 [27856] 0 27856 18244 8755 32 3 0 0 syz-executor.5 [27891] 0 27891 18145 8743 25 3 0 0 syz-executor.4 [27901] 0 27901 18178 8745 25 3 0 0 syz-executor.4 [27958] 0 27958 18145 8965 25 4 0 1000 syz-executor.2 [28068] 0 28068 18211 8990 25 4 0 0 syz-executor.3 [28083] 0 28083 18178 8970 26 4 0 1000 syz-executor.2 [28124] 0 28124 18211 8990 25 4 0 0 syz-executor.3 [28186] 0 28186 18211 8994 28 4 0 0 syz-executor.4 [28287] 0 28287 18145 8742 25 3 0 1000 syz-executor.2 [28413] 0 28413 18310 8997 26 4 0 0 syz-executor.4 [28479] 0 28479 18178 8968 26 4 0 1000 syz-executor.2 [28505] 0 28505 18311 8977 27 4 0 1000 syz-executor.2 [28559] 0 28559 18311 8977 27 4 0 1000 syz-executor.2 [28646] 0 28646 18145 8742 25 3 0 1000 syz-executor.2 [28650] 0 28650 18178 8744 25 3 0 1000 syz-executor.2 [28737] 0 28737 18145 8745 25 3 0 0 syz-executor.3 [28738] 0 28738 18178 8992 26 4 0 0 syz-executor.3 [28872] 0 28872 18178 13294 32 3 0 0 syz-executor.3 [28901] 0 28901 18211 13326 33 3 0 0 syz-executor.3 [29024] 0 29024 18145 8987 26 4 0 0 syz-executor.4 [29084] 0 29084 18145 8745 25 3 0 0 syz-executor.3 [29102] 0 29102 18178 8745 25 3 0 1000 syz-executor.2 [29103] 0 29103 18178 9267 26 3 0 0 syz-executor.3 [29107] 0 29107 18211 8977 26 4 0 0 syz-executor.5 [29115] 0 29115 18145 8746 24 3 0 0 syz-executor.5 [29118] 0 29118 18178 8752 25 3 0 0 syz-executor.5 [29149] 0 29149 18277 8753 26 3 0 1000 syz-executor.2 [29164] 0 29164 18145 8998 26 4 0 0 syz-executor.3 [29180] 0 29180 18178 8750 25 3 0 0 syz-executor.3 [29183] 0 29183 18244 8754 26 3 0 0 syz-executor.3 [29239] 0 29239 18145 8971 26 4 0 0 syz-executor.5 [29486] 0 29486 18178 8970 27 4 0 1000 syz-executor.2 [29512] 0 29512 18244 9003 34 4 0 0 syz-executor.3 [29522] 0 29522 18244 9003 34 4 0 0 syz-executor.3 [29689] 0 29689 18145 8748 25 3 0 0 syz-executor.5 [29697] 0 29697 18145 8988 26 4 0 0 syz-executor.3 [29702] 0 29702 18244 8756 25 3 0 0 syz-executor.5 [29708] 0 29708 18145 8968 26 4 0 1000 syz-executor.2 [29716] 0 29716 18211 8976 26 4 0 0 syz-executor.5 [29721] 0 29721 18211 8972 27 4 0 1000 syz-executor.2 path_openat+0x178/0x2b70 fs/namei.c:3596 [29726] 0 29726 18211 8972 27 4 0 1000 syz-executor.2 do_filp_open+0x1a1/0x280 fs/namei.c:3631 do_sys_open+0x2ca/0x590 fs/open.c:1077 [29769] 0 29769 18211 8976 26 4 0 0 syz-executor.5 do_syscall_64+0x19b/0x510 arch/x86/entry/common.c:292 Showing all locks held in the system: 1 lock held by init/1: #0: (&ei->i_mmap_sem){++++}, at: [<00000000c85862b8>] ext4_filemap_fault+0x7c/0xb0 fs/ext4/inode.c:6178 1 lock held by khungtaskd/23: #0: (tasklist_lock){.+.?}, at: [<0000000035f1eed0>] debug_show_all_locks+0x7c/0x21a kernel/locking/lockdep.c:4541 3 locks held by udevd/190: #0: (&dup_mmap_sem){.+.+}, at: [<0000000024dea761>] dup_mmap kernel/fork.c:609 [inline] #0: (&dup_mmap_sem){.+.+}, at: [<0000000024dea761>] dup_mm kernel/fork.c:1211 [inline] #0: (&dup_mmap_sem){.+.+}, at: [<0000000024dea761>] copy_mm kernel/fork.c:1266 [inline] #0: (&dup_mmap_sem){.+.+}, at: [<0000000024dea761>] copy_process.part.0+0x39db/0x65d0 kernel/fork.c:1789 #1: (&mm->mmap_sem){++++}, at: [<00000000c85f9846>] dup_mmap kernel/fork.c:610 [inline] #1: (&mm->mmap_sem){++++}, at: [<00000000c85f9846>] dup_mm kernel/fork.c:1211 [inline] #1: (&mm->mmap_sem){++++}, at: [<00000000c85f9846>] copy_mm kernel/fork.c:1266 [inline] #1: (&mm->mmap_sem){++++}, at: [<00000000c85f9846>] copy_process.part.0+0x39f7/0x65d0 kernel/fork.c:1789 #2: (&mm->mmap_sem/1){+.+.}, at: [<0000000087858bde>] dup_mmap kernel/fork.c:619 [inline] #2: (&mm->mmap_sem/1){+.+.}, at: [<0000000087858bde>] dup_mm kernel/fork.c:1211 [inline] #2: (&mm->mmap_sem/1){+.+.}, at: [<0000000087858bde>] copy_mm kernel/fork.c:1266 [inline] #2: (&mm->mmap_sem/1){+.+.}, at: [<0000000087858bde>] copy_process.part.0+0x3a3f/0x65d0 kernel/fork.c:1789 1 lock held by rsyslogd/1629: #0: (&ei->i_mmap_sem){++++}, at: [<00000000c85862b8>] ext4_filemap_fault+0x7c/0xb0 fs/ext4/inode.c:6178 2 locks held by getty/1757: #0: (&tty->ldisc_sem){++++}, at: [<0000000033a8c61c>] tty_ldisc_ref_wait+0x22/0x80 drivers/tty/tty_ldisc.c:284 #1: (&ldata->atomic_read_lock){+.+.}, at: [<00000000bfdf5f10>] n_tty_read+0x1f7/0x1700 drivers/tty/n_tty.c:2156 1 lock held by syz-executor.3/1850: #0: (&xt[i].mutex){+.+.}, at: [<000000008aa6a167>] xt_find_table_lock+0x35/0x3d0 net/netfilter/x_tables.c:1092 2 locks held by kworker/u4:13/3871: #0: ("events_unbound"){+.+.}, at: [<000000000dd8a4c4>] process_one_work+0x6e5/0x1510 kernel/workqueue.c:2105 [29837] 0 29837 18244 8972 33 4 0 1000 syz-executor.2 #1: ((&sub_info->work)){+.+.}, at: [<00000000f4f2394d>] process_one_work+0x71b/0x1510 kernel/workqueue.c:2109 2 locks held by kworker/u4:20/5429: #0: ("events_unbound"){+.+.}, at: [<000000000dd8a4c4>] process_one_work+0x6e5/0x1510 kernel/workqueue.c:2105 #1: ((&sub_info->work)){+.+.}, at: [<00000000f4f2394d>] process_one_work+0x71b/0x1510 kernel/workqueue.c:2109 1 lock held by syz-executor.5/10014: #0: (&xt[i].mutex){+.+.}, at: [<000000008aa6a167>] xt_find_table_lock+0x35/0x3d0 net/netfilter/x_tables.c:1092 1 lock held by syz-executor.4/20530: #0: (&xt[i].mutex){+.+.}, at: [<000000008aa6a167>] xt_find_table_lock+0x35/0x3d0 net/netfilter/x_tables.c:1092 2 locks held by syz-executor.4/22891: #0: (&tty->ldisc_sem){++++}, at: [<0000000033a8c61c>] tty_ldisc_ref_wait+0x22/0x80 drivers/tty/tty_ldisc.c:284 #1: (&tty->atomic_write_lock){+.+.}, at: [<00000000e2176b03>] tty_write_lock+0x1d/0x60 drivers/tty/tty_io.c:885 1 lock held by syz-executor.0/23600: #0: (kernfs_mutex){+.+.}, at: [<00000000df6e15be>] kernfs_iop_permission+0x4e/0x90 fs/kernfs/inode.c:301 1 lock held by udevd/9946: #0: (&ei->i_mmap_sem){++++}, at: [<00000000c85862b8>] ext4_filemap_fault+0x7c/0xb0 fs/ext4/inode.c:6178 1 lock held by udevd/9955: #0: (&ei->i_mmap_sem){++++}, at: [<00000000c85862b8>] ext4_filemap_fault+0x7c/0xb0 fs/ext4/inode.c:6178 1 lock held by udevd/9965: #0: (&ei->i_mmap_sem){++++}, at: [<00000000c85862b8>] ext4_filemap_fault+0x7c/0xb0 fs/ext4/inode.c:6178 1 lock held by udevd/9971: #0: (&ei->i_mmap_sem){++++}, at: [<00000000c85862b8>] ext4_filemap_fault+0x7c/0xb0 fs/ext4/inode.c:6178 1 lock held by udevd/9973: #0: (&ei->i_mmap_sem){++++}, at: [<00000000c85862b8>] ext4_filemap_fault+0x7c/0xb0 fs/ext4/inode.c:6178 1 lock held by udevd/9974: #0: (&ei->i_mmap_sem){++++}, at: [<00000000c85862b8>] ext4_filemap_fault+0x7c/0xb0 fs/ext4/inode.c:6178 1 lock held by udevd/9976: #0: (&ei->i_mmap_sem){++++}, at: [<00000000c85862b8>] ext4_filemap_fault+0x7c/0xb0 fs/ext4/inode.c:6178 1 lock held by udevd/9977: #0: (&ei->i_mmap_sem){++++}, at: [<00000000c85862b8>] ext4_filemap_fault+0x7c/0xb0 fs/ext4/inode.c:6178 [29872] 0 29872 18178 8746 25 3 0 0 syz-executor.4 1 lock held by udevd/9979: #0: (&ei->i_mmap_sem){++++}, at: [<00000000c85862b8>] ext4_filemap_fault+0x7c/0xb0 fs/ext4/inode.c:6178 1 lock held by blkid/9980: #0: (&mm->mmap_sem){++++}, at: [<00000000cad7c521>] __do_page_fault+0x271/0xb80 arch/x86/mm/fault.c:1352 1 lock held by udevd/9981: [29913] 0 29913 18244 8750 25 3 0 0 syz-executor.4 #0: (&ei->i_mmap_sem){++++}, at: [<00000000c85862b8>] ext4_filemap_fault+0x7c/0xb0 fs/ext4/inode.c:6178 1 lock held by udevd/9982: #0: (&ei->i_mmap_sem){++++}, at: [<00000000c85862b8>] ext4_filemap_fault+0x7c/0xb0 fs/ext4/inode.c:6178 1 lock held by blkid/9983: #0: (&mm->mmap_sem){++++}, at: [<00000000cad7c521>] __do_page_fault+0x271/0xb80 arch/x86/mm/fault.c:1352 1 lock held by blkid/9984: #0: (&mm->mmap_sem){++++}, at: [<00000000cad7c521>] __do_page_fault+0x271/0xb80 arch/x86/mm/fault.c:1352 1 lock held by udevd/9985: #0: (&ei->i_mmap_sem){++++}, at: [<00000000c85862b8>] ext4_filemap_fault+0x7c/0xb0 fs/ext4/inode.c:6178 1 lock held by blkid/9986: #0: (&mm->mmap_sem){++++}, at: [<00000000cad7c521>] __do_page_fault+0x271/0xb80 arch/x86/mm/fault.c:1352 1 lock held by blkid/9987: #0: (&mm->mmap_sem){++++}, at: [<00000000cad7c521>] __do_page_fault+0x271/0xb80 arch/x86/mm/fault.c:1352 1 lock held by udevd/9988: #0: (&ei->i_mmap_sem){++++}, at: [<00000000c85862b8>] ext4_filemap_fault+0x7c/0xb0 fs/ext4/inode.c:6178 1 lock held by blkid/9989: #0: (&mm->mmap_sem){++++}, at: [<00000000cad7c521>] __do_page_fault+0x271/0xb80 arch/x86/mm/fault.c:1352 1 lock held by blkid/9990: #0: (&mm->mmap_sem){++++}, at: [<00000000cad7c521>] __do_page_fault+0x271/0xb80 arch/x86/mm/fault.c:1352 1 lock held by blkid/9991: #0: (&mm->mmap_sem){++++}, at: [<00000000cad7c521>] __do_page_fault+0x271/0xb80 arch/x86/mm/fault.c:1352 1 lock held by blkid/9992: #0: (&mm->mmap_sem){++++}, at: [<00000000cad7c521>] __do_page_fault+0x271/0xb80 arch/x86/mm/fault.c:1352 1 lock held by udevd/9993: #0: (&ei->i_mmap_sem){++++}, at: [<00000000c85862b8>] ext4_filemap_fault+0x7c/0xb0 fs/ext4/inode.c:6178 1 lock held by blkid/9995: #0: (&mm->mmap_sem){++++}, at: [<00000000cad7c521>] __do_page_fault+0x271/0xb80 arch/x86/mm/fault.c:1352 1 lock held by udevd/9994: #0: (&ei->i_mmap_sem){++++}, at: [<00000000c85862b8>] ext4_filemap_fault+0x7c/0xb0 fs/ext4/inode.c:6178 1 lock held by blkid/9996: #0: (&mm->mmap_sem){++++}, at: [<00000000cad7c521>] __do_page_fault+0x271/0xb80 arch/x86/mm/fault.c:1352 1 lock held by udevd/9997: #0: (&ei->i_mmap_sem){++++}, at: [<00000000c85862b8>] ext4_filemap_fault+0x7c/0xb0 fs/ext4/inode.c:6178 1 lock held by udevd/9999: #0: (&ei->i_mmap_sem){++++}, at: [<00000000c85862b8>] ext4_filemap_fault+0x7c/0xb0 fs/ext4/inode.c:6178 1 lock held by blkid/10002: #0: (&mm->mmap_sem){++++}, at: [<00000000cad7c521>] __do_page_fault+0x271/0xb80 arch/x86/mm/fault.c:1352 1 lock held by udevd/10004: #0: (&ei->i_mmap_sem){++++}, at: [<00000000c85862b8>] ext4_filemap_fault+0x7c/0xb0 fs/ext4/inode.c:6178 1 lock held by udevd/10005: #0: (&ei->i_mmap_sem){++++}, at: [<00000000c85862b8>] ext4_filemap_fault+0x7c/0xb0 fs/ext4/inode.c:6178 1 lock held by udevd/10006: #0: (&ei->i_mmap_sem){++++}, at: [<00000000c85862b8>] ext4_filemap_fault+0x7c/0xb0 fs/ext4/inode.c:6178 1 lock held by blkid/10008: #0: (&mm->mmap_sem){++++}, at: [<00000000cad7c521>] __do_page_fault+0x271/0xb80 arch/x86/mm/fault.c:1352 1 lock held by blkid/10009: #0: (&mm->mmap_sem){++++}, at: [<00000000cad7c521>] __do_page_fault+0x271/0xb80 arch/x86/mm/fault.c:1352 1 lock held by blkid/10010: #0: (&mm->mmap_sem){++++}, at: [<00000000cad7c521>] __do_page_fault+0x271/0xb80 arch/x86/mm/fault.c:1352 1 lock held by blkid/10011: #0: (&mm->mmap_sem){++++}, at: [<00000000cad7c521>] __do_page_fault+0x271/0xb80 arch/x86/mm/fault.c:1352 1 lock held by udevd/10012: #0: (&ei->i_mmap_sem){++++}, at: [<00000000c85862b8>] ext4_filemap_fault+0x7c/0xb0 fs/ext4/inode.c:6178 1 lock held by udevd/10016: #0: (&ei->i_mmap_sem){++++}, at: [<00000000c85862b8>] ext4_filemap_fault+0x7c/0xb0 fs/ext4/inode.c:6178 1 lock held by udevd/10017: #0: (&ei->i_mmap_sem){++++}, at: [<00000000c85862b8>] ext4_filemap_fault+0x7c/0xb0 fs/ext4/inode.c:6178 1 lock held by blkid/10018: #0: (&mm->mmap_sem){++++}, at: [<00000000cad7c521>] __do_page_fault+0x271/0xb80 arch/x86/mm/fault.c:1352 1 lock held by udevd/10019: #0: (&ei->i_mmap_sem){++++}, at: [<00000000c85862b8>] ext4_filemap_fault+0x7c/0xb0 fs/ext4/inode.c:6178 1 lock held by udevd/10020: #0: (&ei->i_mmap_sem){++++}, at: [<00000000c85862b8>] ext4_filemap_fault+0x7c/0xb0 fs/ext4/inode.c:6178 1 lock held by udevd/10021: #0: (&ei->i_mmap_sem){++++}, at: [<00000000c85862b8>] ext4_filemap_fault+0x7c/0xb0 fs/ext4/inode.c:6178 1 lock held by udevd/10022: #0: (&ei->i_mmap_sem){++++}, at: [<00000000c85862b8>] ext4_filemap_fault+0x7c/0xb0 fs/ext4/inode.c:6178 1 lock held by blkid/10023: #0: (&mm->mmap_sem){++++}, at: [<00000000cad7c521>] __do_page_fault+0x271/0xb80 arch/x86/mm/fault.c:1352 1 lock held by blkid/10024: #0: (&mm->mmap_sem){++++}, at: [<00000000cad7c521>] __do_page_fault+0x271/0xb80 arch/x86/mm/fault.c:1352 1 lock held by blkid/10026: #0: (&mm->mmap_sem){++++}, at: [<00000000cad7c521>] __do_page_fault+0x271/0xb80 arch/x86/mm/fault.c:1352 1 lock held by udevd/10027: #0: (&ei->i_mmap_sem){++++}, at: [<00000000c85862b8>] ext4_filemap_fault+0x7c/0xb0 fs/ext4/inode.c:6178 1 lock held by udevd/10028: #0: (&ei->i_mmap_sem){++++}, at: [<00000000c85862b8>] ext4_filemap_fault+0x7c/0xb0 fs/ext4/inode.c:6178 1 lock held by udevd/10030: #0: (&ei->i_mmap_sem){++++}, at: [<00000000c85862b8>] ext4_filemap_fault+0x7c/0xb0 fs/ext4/inode.c:6178 1 lock held by blkid/10031: #0: (&mm->mmap_sem){++++}, at: [<00000000cad7c521>] __do_page_fault+0x271/0xb80 arch/x86/mm/fault.c:1352 1 lock held by blkid/10032: #0: (&mm->mmap_sem){++++}, at: [<00000000cad7c521>] __do_page_fault+0x271/0xb80 arch/x86/mm/fault.c:1352 1 lock held by udevd/10033: #0: (&ei->i_mmap_sem){++++}, at: [<00000000c85862b8>] ext4_filemap_fault+0x7c/0xb0 fs/ext4/inode.c:6178 1 lock held by udevd/10036: #0: (&ei->i_mmap_sem){++++}, at: [<00000000c85862b8>] ext4_filemap_fault+0x7c/0xb0 fs/ext4/inode.c:6178 1 lock held by blkid/10037: #0: (&mm->mmap_sem){++++}, at: [<00000000cad7c521>] __do_page_fault+0x271/0xb80 arch/x86/mm/fault.c:1352 1 lock held by blkid/10038: #0: (&mm->mmap_sem){++++}, at: [<00000000cad7c521>] __do_page_fault+0x271/0xb80 arch/x86/mm/fault.c:1352 1 lock held by blkid/10039: #0: (&mm->mmap_sem){++++}, at: [<00000000cad7c521>] __do_page_fault+0x271/0xb80 arch/x86/mm/fault.c:1352 1 lock held by udevd/10040: #0: (&ei->i_mmap_sem){++++}, at: [<00000000c85862b8>] ext4_filemap_fault+0x7c/0xb0 fs/ext4/inode.c:6178 1 lock held by udevd/10041: #0: (&ei->i_mmap_sem){++++}, at: [<00000000c85862b8>] ext4_filemap_fault+0x7c/0xb0 fs/ext4/inode.c:6178 1 lock held by udevd/10043: #0: (&ei->i_mmap_sem){++++}, at: [<00000000c85862b8>] ext4_filemap_fault+0x7c/0xb0 fs/ext4/inode.c:6178 1 lock held by blkid/10044: #0: (&mm->mmap_sem){++++}, at: [<00000000cad7c521>] __do_page_fault+0x271/0xb80 arch/x86/mm/fault.c:1352 1 lock held by udevd/10045: #0: (&ei->i_mmap_sem){++++}, at: [<00000000c85862b8>] ext4_filemap_fault+0x7c/0xb0 fs/ext4/inode.c:6178 1 lock held by udevd/10046: #0: (&ei->i_mmap_sem){++++}, at: [<00000000c85862b8>] ext4_filemap_fault+0x7c/0xb0 fs/ext4/inode.c:6178 1 lock held by blkid/10047: #0: (&mm->mmap_sem){++++}, at: [<00000000cad7c521>] __do_page_fault+0x271/0xb80 arch/x86/mm/fault.c:1352 1 lock held by blkid/10049: #0: (&mm->mmap_sem){++++}, at: [<00000000cad7c521>] __do_page_fault+0x271/0xb80 arch/x86/mm/fault.c:1352 1 lock held by blkid/10051: #0: (&mm->mmap_sem){++++}, at: [<00000000cad7c521>] __do_page_fault+0x271/0xb80 arch/x86/mm/fault.c:1352 1 lock held by blkid/10052: #0: (&mm->mmap_sem){++++}, at: [<00000000cad7c521>] __do_page_fault+0x271/0xb80 arch/x86/mm/fault.c:1352 1 lock held by udevd/10054: #0: (&ei->i_mmap_sem){++++}, at: [<00000000c85862b8>] ext4_filemap_fault+0x7c/0xb0 fs/ext4/inode.c:6178 1 lock held by udevd/10055: #0: (&ei->i_mmap_sem){++++}, at: [<00000000c85862b8>] ext4_filemap_fault+0x7c/0xb0 fs/ext4/inode.c:6178 1 lock held by udevd/10057: #0: (&ei->i_mmap_sem){++++}, at: [<00000000c85862b8>] ext4_filemap_fault+0x7c/0xb0 fs/ext4/inode.c:6178 1 lock held by blkid/10058: #0: (&mm->mmap_sem){++++}, at: [<00000000cad7c521>] __do_page_fault+0x271/0xb80 arch/x86/mm/fault.c:1352 1 lock held by blkid/10062: #0: (&mm->mmap_sem){++++}, at: [<00000000cad7c521>] __do_page_fault+0x271/0xb80 arch/x86/mm/fault.c:1352 1 lock held by blkid/10064: #0: (&mm->mmap_sem){++++}, at: [<00000000cad7c521>] __do_page_fault+0x271/0xb80 arch/x86/mm/fault.c:1352 1 lock held by udevd/10066: #0: (&ei->i_mmap_sem){++++}, at: [<00000000c85862b8>] ext4_filemap_fault+0x7c/0xb0 fs/ext4/inode.c:6178 1 lock held by udevd/10067: #0: (&ei->i_mmap_sem){++++}, at: [<00000000c85862b8>] ext4_filemap_fault+0x7c/0xb0 fs/ext4/inode.c:6178 1 lock held by blkid/10068: #0: (&mm->mmap_sem){++++}, at: [<00000000cad7c521>] __do_page_fault+0x271/0xb80 arch/x86/mm/fault.c:1352 1 lock held by udevd/10069: #0: (&ei->i_mmap_sem){++++}, at: [<00000000c85862b8>] ext4_filemap_fault+0x7c/0xb0 fs/ext4/inode.c:6178 1 lock held by udevd/10070: #0: (&ei->i_mmap_sem){++++}, at: [<00000000c85862b8>] ext4_filemap_fault+0x7c/0xb0 fs/ext4/inode.c:6178 1 lock held by udevd/10071: #0: (&ei->i_mmap_sem){++++}, at: [<00000000c85862b8>] ext4_filemap_fault+0x7c/0xb0 fs/ext4/inode.c:6178 1 lock held by blkid/10072: #0: (&mm->mmap_sem){++++}, at: [<00000000cad7c521>] __do_page_fault+0x271/0xb80 arch/x86/mm/fault.c:1352 1 lock held by blkid/10073: #0: (&mm->mmap_sem){++++}, at: [<00000000cad7c521>] __do_page_fault+0x271/0xb80 arch/x86/mm/fault.c:1352 1 lock held by blkid/10075: #0: (&mm->mmap_sem){++++}, at: [<00000000cad7c521>] __do_page_fault+0x271/0xb80 arch/x86/mm/fault.c:1352 1 lock held by udevd/10077: #0: (&ei->i_mmap_sem){++++}, at: [<00000000c85862b8>] ext4_filemap_fault+0x7c/0xb0 fs/ext4/inode.c:6178 1 lock held by udevd/10078: #0: (&ei->i_mmap_sem){++++} [29943] 0 29943 18145 8971 26 4 0 0 syz-executor.5 , at: [<00000000c85862b8>] ext4_filemap_fault+0x7c/0xb0 fs/ext4/inode.c:6178 [29957] 0 29957 18145 8967 26 4 0 1000 syz-executor.2 1 lock held by blkid/10079: [29991] 0 29991 18211 8970 27 4 0 1000 syz-executor.2 #0: (&mm->mmap_sem){++++}, at: [<00000000cad7c521>] __do_page_fault+0x271/0xb80 arch/x86/mm/fault.c:1352 1 lock held by blkid/10080: #0: (&mm->mmap_sem){++++}, at: [<00000000cad7c521>] __do_page_fault+0x271/0xb80 arch/x86/mm/fault.c:1352 1 lock held by udevd/10081: #0: (&ei->i_mmap_sem){++++}, at: [<00000000c85862b8>] ext4_filemap_fault+0x7c/0xb0 fs/ext4/inode.c:6178 1 lock held by udevd/10082: #0: (&ei->i_mmap_sem){++++}, at: [<00000000c85862b8>] ext4_filemap_fault+0x7c/0xb0 fs/ext4/inode.c:6178 1 lock held by udevd/10083: #0: (&ei->i_mmap_sem){++++}, at: [<00000000c85862b8>] ext4_filemap_fault+0x7c/0xb0 fs/ext4/inode.c:6178 1 lock held by udevd/10084: #0: (&ei->i_mmap_sem){++++}, at: [<00000000c85862b8>] ext4_filemap_fault+0x7c/0xb0 fs/ext4/inode.c:6178 1 lock held by blkid/10085: #0: (&mm->mmap_sem){++++}, at: [<00000000cad7c521>] __do_page_fault+0x271/0xb80 arch/x86/mm/fault.c:1352 1 lock held by blkid/10086: #0: (&mm->mmap_sem){++++}, at: [<00000000cad7c521>] __do_page_fault+0x271/0xb80 arch/x86/mm/fault.c:1352 1 lock held by udevd/10087: #0: (&ei->i_mmap_sem){++++}, at: [<00000000c85862b8>] ext4_filemap_fault+0x7c/0xb0 fs/ext4/inode.c:6178 1 lock held by udevd/10088: #0: (&ei->i_mmap_sem){++++}, at: [<00000000c85862b8>] ext4_filemap_fault+0x7c/0xb0 fs/ext4/inode.c:6178 1 lock held by blkid/10089: #0: (&mm->mmap_sem){++++}, at: [<00000000cad7c521>] __do_page_fault+0x271/0xb80 arch/x86/mm/fault.c:1352 1 lock held by blkid/10090: #0: (&mm->mmap_sem){++++}, at: [<00000000cad7c521>] __do_page_fault+0x271/0xb80 arch/x86/mm/fault.c:1352 1 lock held by udevd/10091: #0: (&ei->i_mmap_sem){++++}, at: [<00000000c85862b8>] ext4_filemap_fault+0x7c/0xb0 fs/ext4/inode.c:6178 1 lock held by udevd/10092: #0: (&ei->i_mmap_sem){++++}, at: [<00000000c85862b8>] ext4_filemap_fault+0x7c/0xb0 fs/ext4/inode.c:6178 1 lock held by blkid/10094: #0: (&mm->mmap_sem){++++}, at: [<00000000cad7c521>] __do_page_fault+0x271/0xb80 arch/x86/mm/fault.c:1352 1 lock held by blkid/10095: #0: (&mm->mmap_sem){++++}, at: [<00000000cad7c521>] __do_page_fault+0x271/0xb80 arch/x86/mm/fault.c:1352 1 lock held by udevd/10096: #0: (&ei->i_mmap_sem){++++}, at: [<00000000c85862b8>] ext4_filemap_fault+0x7c/0xb0 fs/ext4/inode.c:6178 1 lock held by udevd/10097: #0: (&ei->i_mmap_sem){++++}, at: [<00000000c85862b8>] ext4_filemap_fault+0x7c/0xb0 fs/ext4/inode.c:6178 1 lock held by blkid/10098: #0: (&mm->mmap_sem){++++}, at: [<00000000cad7c521>] __do_page_fault+0x271/0xb80 arch/x86/mm/fault.c:1352 1 lock held by blkid/10100: #0: (&mm->mmap_sem){++++}, at: [<00000000cad7c521>] __do_page_fault+0x271/0xb80 arch/x86/mm/fault.c:1352 1 lock held by blkid/10099: #0: (&mm->mmap_sem){++++}, at: [<00000000cad7c521>] __do_page_fault+0x271/0xb80 arch/x86/mm/fault.c:1352 1 lock held by udevd/10101: #0: (&ei->i_mmap_sem){++++}, at: [<00000000c85862b8>] ext4_filemap_fault+0x7c/0xb0 fs/ext4/inode.c:6178 1 lock held by udevd/10102: #0: (&ei->i_mmap_sem){++++}, at: [<00000000c85862b8>] ext4_filemap_fault+0x7c/0xb0 fs/ext4/inode.c:6178 1 lock held by udevd/10103: #0: (&ei->i_mmap_sem){++++}, at: [<00000000c85862b8>] ext4_filemap_fault+0x7c/0xb0 fs/ext4/inode.c:6178 1 lock held by blkid/10105: #0: (&mm->mmap_sem){++++}, at: [<00000000cad7c521>] __do_page_fault+0x271/0xb80 arch/x86/mm/fault.c:1352 1 lock held by udevd/10107: #0: (&ei->i_mmap_sem){++++}, at: [<00000000c85862b8>] ext4_filemap_fault+0x7c/0xb0 fs/ext4/inode.c:6178 1 lock held by udevd/10108: #0: (&ei->i_mmap_sem){++++}, at: [<00000000c85862b8>] ext4_filemap_fault+0x7c/0xb0 fs/ext4/inode.c:6178 1 lock held by udevd/10110: #0: (&ei->i_mmap_sem){++++}, at: [<00000000c85862b8>] ext4_filemap_fault+0x7c/0xb0 fs/ext4/inode.c:6178 1 lock held by blkid/10112: #0: (&mm->mmap_sem){++++}, at: [<00000000cad7c521>] __do_page_fault+0x271/0xb80 arch/x86/mm/fault.c:1352 1 lock held by blkid/10113: #0: (&mm->mmap_sem){++++}, at: [<00000000cad7c521>] __do_page_fault+0x271/0xb80 arch/x86/mm/fault.c:1352 1 lock held by blkid/10114: #0: (&mm->mmap_sem){++++}, at: [<00000000cad7c521>] __do_page_fault+0x271/0xb80 arch/x86/mm/fault.c:1352 1 lock held by blkid/10115: #0: (&mm->mmap_sem){++++}, at: [<00000000cad7c521>] __do_page_fault+0x271/0xb80 arch/x86/mm/fault.c:1352 1 lock held by blkid/10116: #0: (&mm->mmap_sem){++++}, at: [<00000000cad7c521>] __do_page_fault+0x271/0xb80 arch/x86/mm/fault.c:1352 1 lock held by udevd/10117: #0: (&ei->i_mmap_sem){++++}, at: [<00000000c85862b8>] ext4_filemap_fault+0x7c/0xb0 fs/ext4/inode.c:6178 1 lock held by udevd/10118: #0: (&ei->i_mmap_sem){++++}, at: [<00000000c85862b8>] ext4_filemap_fault+0x7c/0xb0 fs/ext4/inode.c:6178 1 lock held by udevd/10119: #0: (&ei->i_mmap_sem){++++}, at: [<00000000c85862b8>] ext4_filemap_fault+0x7c/0xb0 fs/ext4/inode.c:6178 1 lock held by udevd/10120: #0: (&ei->i_mmap_sem){++++}, at: [<00000000c85862b8>] ext4_filemap_fault+0x7c/0xb0 fs/ext4/inode.c:6178 1 lock held by udevd/10121: #0: (&ei->i_mmap_sem){++++}, at: [<00000000c85862b8>] ext4_filemap_fault+0x7c/0xb0 fs/ext4/inode.c:6178 1 lock held by udevd/10123: #0: (&ei->i_mmap_sem){++++}, at: [<00000000c85862b8>] ext4_filemap_fault+0x7c/0xb0 fs/ext4/inode.c:6178 1 lock held by blkid/10124: #0: (&mm->mmap_sem){++++}, at: [<00000000cad7c521>] __do_page_fault+0x271/0xb80 arch/x86/mm/fault.c:1352 1 lock held by blkid/10125: #0: (&mm->mmap_sem){++++}, at: [<00000000cad7c521>] __do_page_fault+0x271/0xb80 arch/x86/mm/fault.c:1352 1 lock held by udevd/10133: #0: (&ei->i_mmap_sem){++++}, at: [<00000000c85862b8>] ext4_filemap_fault+0x7c/0xb0 fs/ext4/inode.c:6178 1 lock held by blkid/10134: #0: (&mm->mmap_sem){++++}, at: [<00000000cad7c521>] __do_page_fault+0x271/0xb80 arch/x86/mm/fault.c:1352 1 lock held by udevd/10138: #0: (&ei->i_mmap_sem){++++}, at: [<00000000c85862b8>] ext4_filemap_fault+0x7c/0xb0 fs/ext4/inode.c:6178 1 lock held by udevd/10146: #0: (&ei->i_mmap_sem){++++}, at: [<00000000c85862b8>] ext4_filemap_fault+0x7c/0xb0 fs/ext4/inode.c:6178 1 lock held by udevd/10147: #0: (&ei->i_mmap_sem){++++}, at: [<00000000c85862b8>] ext4_filemap_fault+0x7c/0xb0 fs/ext4/inode.c:6178 1 lock held by udevd/10148: #0: (&ei->i_mmap_sem){++++}, at: [<00000000c85862b8>] ext4_filemap_fault+0x7c/0xb0 fs/ext4/inode.c:6178 1 lock held by udevd/10149: #0: (&ei->i_mmap_sem){++++}, at: [<00000000c85862b8>] ext4_filemap_fault+0x7c/0xb0 fs/ext4/inode.c:6178 1 lock held by blkid/10151: #0: (&mm->mmap_sem){++++}, at: [<00000000cad7c521>] __do_page_fault+0x271/0xb80 arch/x86/mm/fault.c:1352 1 lock held by blkid/10157: #0: (&mm->mmap_sem){++++}, at: [<00000000cad7c521>] __do_page_fault+0x271/0xb80 arch/x86/mm/fault.c:1352 1 lock held by blkid/10160: #0: (&mm->mmap_sem){++++}, at: [<00000000cad7c521>] __do_page_fault+0x271/0xb80 arch/x86/mm/fault.c:1352 1 lock held by blkid/10161: #0: (&mm->mmap_sem){++++}, at: [<00000000cad7c521>] __do_page_fault+0x271/0xb80 arch/x86/mm/fault.c:1352 1 lock held by blkid/10164: #0: (&mm->mmap_sem){++++}, at: [<00000000cad7c521>] __do_page_fault+0x271/0xb80 arch/x86/mm/fault.c:1352 1 lock held by udevd/10165: #0: (&ei->i_mmap_sem){++++}, at: [<00000000c85862b8>] ext4_filemap_fault+0x7c/0xb0 fs/ext4/inode.c:6178 1 lock held by udevd/10169: #0: (&ei->i_mmap_sem){++++}, at: [<00000000c85862b8>] ext4_filemap_fault+0x7c/0xb0 fs/ext4/inode.c:6178 1 lock held by blkid/10171: #0: (&mm->mmap_sem){++++}, at: [<00000000cad7c521>] __do_page_fault+0x271/0xb80 arch/x86/mm/fault.c:1352 1 lock held by blkid/10174: #0: (&mm->mmap_sem){++++}, at: [<00000000cad7c521>] __do_page_fault+0x271/0xb80 arch/x86/mm/fault.c:1352 1 lock held by udevd/10182: #0: (&ei->i_mmap_sem){++++}, at: [<00000000c85862b8>] ext4_filemap_fault+0x7c/0xb0 fs/ext4/inode.c:6178 1 lock held by udevd/10183: #0: (&ei->i_mmap_sem){++++}, at: [<00000000c85862b8>] ext4_filemap_fault+0x7c/0xb0 fs/ext4/inode.c:6178 1 lock held by udevd/10184: #0: (&ei->i_mmap_sem){++++}, at: [<00000000c85862b8>] ext4_filemap_fault+0x7c/0xb0 fs/ext4/inode.c:6178 1 lock held by udevd/10185: #0: (&ei->i_mmap_sem){++++}, at: [<00000000c85862b8>] ext4_filemap_fault+0x7c/0xb0 fs/ext4/inode.c:6178 1 lock held by blkid/10195: #0: (&mm->mmap_sem){++++}, at: [<00000000cad7c521>] __do_page_fault+0x271/0xb80 arch/x86/mm/fault.c:1352 1 lock held by blkid/10196: #0: (&mm->mmap_sem){++++}, at: [<00000000cad7c521>] __do_page_fault+0x271/0xb80 arch/x86/mm/fault.c:1352 1 lock held by blkid/10199: #0: (&mm->mmap_sem){++++}, at: [<00000000cad7c521>] __do_page_fault+0x271/0xb80 arch/x86/mm/fault.c:1352 1 lock held by blkid/10203: #0: (&mm->mmap_sem){++++}, at: [<00000000cad7c521>] __do_page_fault+0x271/0xb80 arch/x86/mm/fault.c:1352 1 lock held by blkid/10205: [30052] 0 30052 18211 8970 27 4 0 1000 syz-executor.2 #0: (&mm->mmap_sem){++++}, at: [<00000000cad7c521>] __do_page_fault+0x271/0xb80 arch/x86/mm/fault.c:1352 1 lock held by udevd/10208: [30084] 0 30084 18178 11842 31 4 0 0 syz-executor.5 #0: [30237] 0 30237 18244 8972 27 4 0 1000 syz-executor.2 ( [30245] 0 30245 18145 8743 25 3 0 0 syz-executor.4 &ei->i_mmap_sem [30307] 0 30307 18211 8973 27 4 0 1000 syz-executor.2 ){++++}, at: [<00000000c85862b8>] ext4_filemap_fault+0x7c/0xb0 fs/ext4/inode.c:6178 1 lock held by udevd/10209: #0: (&ei->i_mmap_sem){++++}, at: [<00000000c85862b8>] ext4_filemap_fault+0x7c/0xb0 fs/ext4/inode.c:6178 1 lock held by udevd/10210: [30319] 0 30319 18178 8969 26 4 0 0 syz-executor.2 #0: [30463] 0 30463 18145 8742 25 3 0 0 syz-executor.2 [30484] 0 30484 18145 8972 26 4 0 0 syz-executor.5 [30534] 0 30534 18178 8974 27 4 0 0 syz-executor.5 ( [30688] 0 30688 18145 8985 26 4 0 0 syz-executor.4 &ei->i_mmap_sem [30709] 0 30709 18211 8995 27 4 0 0 syz-executor.4 ){++++}, at: [<00000000c85862b8>] ext4_filemap_fault+0x7c/0xb0 fs/ext4/inode.c:6178 1 lock held by udevd/10212: #0: (&ei->i_mmap_sem){++++}, at: [<00000000c85862b8>] ext4_filemap_fault+0x7c/0xb0 fs/ext4/inode.c:6178 1 lock held by blkid/10213: #0: (&mm->mmap_sem){++++}, at: [<00000000cad7c521>] __do_page_fault+0x271/0xb80 arch/x86/mm/fault.c:1352 1 lock held by blkid/10214: #0: (&mm->mmap_sem){++++}, at: [<00000000cad7c521>] __do_page_fault+0x271/0xb80 arch/x86/mm/fault.c:1352 1 lock held by blkid/10215: #0: (&mm->mmap_sem){++++}, at: [<00000000cad7c521>] __do_page_fault+0x271/0xb80 arch/x86/mm/fault.c:1352 1 lock held by blkid/10220: #0: (&mm->mmap_sem){++++}, at: [<00000000cad7c521>] __do_page_fault+0x271/0xb80 arch/x86/mm/fault.c:1352 [30740] 0 30740 18178 8993 26 4 0 0 syz-executor.3 1 lock held by blkid/10222: [30783] 0 30783 18145 8972 26 4 0 0 syz-executor.5 #0: [30846] 0 30846 18145 8985 26 4 0 0 syz-executor.4 ( [30884] 0 30884 18145 8992 26 4 0 0 syz-executor.3 &mm->mmap_sem [31038] 0 31038 18145 8971 26 4 0 0 syz-executor.5 ){++++} [31227] 0 31227 18244 8972 27 4 0 0 syz-executor.2 , at: [<00000000cad7c521>] __do_page_fault+0x271/0xb80 arch/x86/mm/fault.c:1352 [31285] 0 31285 18178 8997 26 4 0 0 syz-executor.3 1 lock held by blkid/10223: #0: [31315] 0 31315 18211 8992 26 4 0 0 syz-executor.3 ( [31317] 0 31317 18211 8992 26 4 0 0 syz-executor.3 &mm->mmap_sem){++++}, at: [<00000000cad7c521>] __do_page_fault+0x271/0xb80 arch/x86/mm/fault.c:1352 1 lock held by udevd/10225: #0: (&ei->i_mmap_sem){++++}, at: [<00000000c85862b8>] ext4_filemap_fault+0x7c/0xb0 fs/ext4/inode.c:6178 1 lock held by udevd/10226: #0: (&ei->i_mmap_sem){++++}, at: [<00000000c85862b8>] ext4_filemap_fault+0x7c/0xb0 fs/ext4/inode.c:6178 1 lock held by udevd/10227: #0: (&ei->i_mmap_sem){++++}, at: [<00000000c85862b8>] ext4_filemap_fault+0x7c/0xb0 fs/ext4/inode.c:6178 1 lock held by udevd/10228: #0: (&ei->i_mmap_sem){++++}, at: [<00000000c85862b8>] ext4_filemap_fault+0x7c/0xb0 fs/ext4/inode.c:6178 1 lock held by udevd/10229: #0: (&ei->i_mmap_sem){++++}, at: [<00000000c85862b8>] ext4_filemap_fault+0x7c/0xb0 fs/ext4/inode.c:6178 1 lock held by blkid/10231: #0: (&mm->mmap_sem){++++}, at: [<00000000cad7c521>] __do_page_fault+0x271/0xb80 arch/x86/mm/fault.c:1352 1 lock held by blkid/10234: #0: (&mm->mmap_sem){++++}, at: [<00000000cad7c521>] __do_page_fault+0x271/0xb80 arch/x86/mm/fault.c:1352 1 lock held by udevd/10236: #0: (&ei->i_mmap_sem){++++}, at: [<00000000c85862b8>] ext4_filemap_fault+0x7c/0xb0 fs/ext4/inode.c:6178 [31375] 0 31375 18178 8988 26 4 0 0 syz-executor.4 1 lock held by udevd/10237: #0: (&ei->i_mmap_sem){++++}, at: [<00000000c85862b8>] ext4_filemap_fault+0x7c/0xb0 fs/ext4/inode.c:6178 1 lock held by udevd/10238: #0: (&ei->i_mmap_sem){++++}, at: [<00000000c85862b8>] ext4_filemap_fault+0x7c/0xb0 fs/ext4/inode.c:6178 1 lock held by udevd/10239: #0: (&ei->i_mmap_sem){++++}, at: [<00000000c85862b8>] ext4_filemap_fault+0x7c/0xb0 fs/ext4/inode.c:6178 1 lock held by udevd/10240: #0: (&ei->i_mmap_sem){++++}, at: [<00000000c85862b8>] ext4_filemap_fault+0x7c/0xb0 fs/ext4/inode.c:6178 1 lock held by blkid/10242: #0: (&mm->mmap_sem){++++}, at: [<00000000cad7c521>] __do_page_fault+0x271/0xb80 arch/x86/mm/fault.c:1352 1 lock held by blkid/10261: #0: (&mm->mmap_sem){++++}, at: [<00000000cad7c521>] __do_page_fault+0x271/0xb80 arch/x86/mm/fault.c:1352 1 lock held by udevd/10438: #0: (kernfs_mutex){+.+.}, at: [<00000000df6e15be>] kernfs_iop_permission+0x4e/0x90 fs/kernfs/inode.c:301 1 lock held by udevd/10448: #0: (kernfs_mutex){+.+.}, at: [<00000000df6e15be>] kernfs_iop_permission+0x4e/0x90 fs/kernfs/inode.c:301 1 lock held by udevd/10476: #0: (kernfs_mutex){+.+.}, at: [<00000000dfd969cc>] kernfs_iop_getattr+0x85/0xd0 fs/kernfs/inode.c:209 ============================================= NMI backtrace for cpu 1 CPU: 1 PID: 23 Comm: khungtaskd Not tainted 4.14.131+ #13 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0xb9/0x10e lib/dump_stack.c:53 nmi_cpu_backtrace.cold+0x47/0x86 lib/nmi_backtrace.c:101 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 10100 Comm: blkid Not tainted 4.14.131+ #13 task: 0000000014f04ae2 task.stack: 00000000c6b83279 RIP: 0010:find_held_lock+0x0/0x200 kernel/locking/lockdep.c:3592 RSP: 0000:ffff8881739674e0 EFLAGS: 00000006 RAX: 0000000000000003 RBX: 1ffff1102e72cea0 RCX: ffff888173967520 RDX: 0000000000000003 RSI: ffff8881bfc676d8 RDI: ffff8881965f1780 RBP: ffffffffb4e206a0 R08: 0000000000000001 R09: 0000000000000000 R10: ffff8881965f2000 R11: 0000000000000001 R12: ffff8881bfc676d8 R13: ffff8881965f1780 R14: 0000000000000003 R15: ffff8881965f1fa8 FS: 00007f10d8d0a740(0000) GS:ffff8881d7600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fee4d776000 CR3: 00000001a5970002 CR4: 00000000001606b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: __lock_release kernel/locking/lockdep.c:3760 [inline] lock_release+0x1e9/0x730 kernel/locking/lockdep.c:4010 Code: fd ff ff e8 73 bc 33 00 e9 88 fd ff ff 48 c7 c7 a0 85 e5 b4 e8 52 bc 33 00 e9 5b fe ff ff 0f 1f 00 66 2e 0f 1f 84 00 00 00 00 00 <41> 57 49 89 f7 41 56 49 89 ce 41 55 44 8d 6a ff 49 63 c5 41 54