INIT: Id "2" respawning too fast: disabled for 5 minutes INIT: Id "4" respawning too fast: disabled for 5 minutes INIT: Id "5" respawning too fast: disabled for 5 minutes INIT: Id "6" respawning too fast: disabled for 5 minutes INIT: Id "3" respawning too fast: disabled for 5 minutes [ 613.222648] random: sshd: uninitialized urandom read (32 bytes read) Warning: Permanently added '10.128.0.12' (ECDSA) to the list of known hosts. [ 618.658160] random: sshd: uninitialized urandom read (32 bytes read) [ 618.752365] audit: type=1400 audit(1555864215.668:7): avc: denied { map } for pid=1889 comm="syz-execprog" path="/root/syz-execprog" dev="sda1" ino=1426 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1 2019/04/21 16:30:16 parsed 1 programs [ 619.703350] audit: type=1400 audit(1555864216.618:8): avc: denied { map } for pid=1889 comm="syz-execprog" path="/sys/kernel/debug/kcov" dev="debugfs" ino=5011 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=system_u:object_r:debugfs_t:s0 tclass=file permissive=1 [ 620.403048] random: cc1: uninitialized urandom read (8 bytes read) 2019/04/21 16:30:18 executed programs: 0 [ 621.903104] audit: type=1400 audit(1555864218.818:9): avc: denied { map } for pid=1889 comm="syz-execprog" path="/root/syzkaller-shm004014162" dev="sda1" ino=16482 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:file_t:s0 tclass=file permissive=1 2019/04/21 16:30:23 executed programs: 142 2019/04/21 16:30:28 executed programs: 506 2019/04/21 16:30:33 executed programs: 869 2019/04/21 16:30:38 executed programs: 1236 2019/04/21 16:30:43 executed programs: 1596 2019/04/21 16:30:48 executed programs: 1945 2019/04/21 16:30:53 executed programs: 2317 2019/04/21 16:30:58 executed programs: 2687 2019/04/21 16:31:03 executed programs: 3049 2019/04/21 16:31:08 executed programs: 3425 2019/04/21 16:31:14 executed programs: 3780 2019/04/21 16:31:19 executed programs: 4149 2019/04/21 16:31:24 executed programs: 4509 2019/04/21 16:31:29 executed programs: 4885 2019/04/21 16:31:34 executed programs: 5241 2019/04/21 16:31:39 executed programs: 5607 2019/04/21 16:31:44 executed programs: 5964 2019/04/21 16:31:49 executed programs: 6323 2019/04/21 16:31:54 executed programs: 6675 2019/04/21 16:31:59 executed programs: 7037 2019/04/21 16:32:04 executed programs: 7388 2019/04/21 16:32:09 executed programs: 7754 2019/04/21 16:32:14 executed programs: 8100 2019/04/21 16:32:19 executed programs: 8452 2019/04/21 16:32:24 executed programs: 8811 2019/04/21 16:32:29 executed programs: 9164 2019/04/21 16:32:34 executed programs: 9525 2019/04/21 16:32:39 executed programs: 9876 2019/04/21 16:32:44 executed programs: 10217 INIT: Id "4" respawning too fast: disabled for 5 minutes INIT: Id "2" respawning too fast: disabled for 5 minutes INIT: Id "1" respawning too fast: disabled for 5 minutes INIT: Id "5" respawning too fast: disabled for 5 minutes INIT: Id "6" respawning too fast: disabled for 5 minutes INIT: Id "3" respawning too fast: disabled for 5 minutes [ 1001.430150] INFO: task syz-executor.3:11943 blocked for more than 140 seconds. [ 1001.437627] Not tainted 4.14.113+ #59 [ 1001.442520] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 1001.450542] syz-executor.3 D28808 11943 1912 0x80000000 [ 1001.456189] Call Trace: [ 1001.458882] ? __schedule+0x91c/0x1f30 [ 1001.463246] ? __sched_text_start+0x8/0x8 [ 1001.467532] ? mark_held_locks+0xa6/0xf0 [ 1001.471984] ? rwsem_down_read_failed+0x21f/0x3c0 [ 1001.476855] schedule+0x92/0x1c0 [ 1001.480979] rwsem_down_read_failed+0x21f/0x3c0 [ 1001.485857] ? rt_mutex_futex_unlock+0xe0/0xe0 [ 1001.491047] ? __might_fault+0x104/0x1b0 [ 1001.495194] ? SyS_futex+0x1c5/0x2c3 [ 1001.498909] ? SyS_futex+0x1cf/0x2c3 [ 1001.503039] ? do_futex+0x17f0/0x17f0 [ 1001.506918] call_rwsem_down_read_failed+0x14/0x30 [ 1001.512204] down_read+0x45/0xa0 [ 1001.515609] ? do_exit+0x503/0x2960 [ 1001.519235] do_exit+0x503/0x2960 [ 1001.523039] ? mm_update_next_owner+0x5b0/0x5b0 [ 1001.527712] ? do_group_exit+0x26b/0x2e0 [ 1001.532153] ? lock_downgrade+0x5d0/0x5d0 [ 1001.536406] ? kick_process+0xef/0x180 [ 1001.540663] ? _raw_spin_unlock_irq+0x24/0x50 [ 1001.545177] ? do_group_exit+0x100/0x2e0 [ 1001.549330] ? SyS_exit_group+0x19/0x20 [ 1001.553702] ? do_group_exit+0x2e0/0x2e0 [ 1001.557810] ? do_syscall_64+0x19b/0x4b0 [ 1001.562301] ? entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 1001.567696] INFO: task syz-executor.3:11945 blocked for more than 140 seconds. [ 1001.575405] Not tainted 4.14.113+ #59 [ 1001.579731] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 1001.588073] syz-executor.3 D28912 11945 1912 0x80000000 [ 1001.593756] Call Trace: [ 1001.596367] ? __schedule+0x91c/0x1f30 [ 1001.600627] ? __sched_text_start+0x8/0x8 [ 1001.604794] ? mark_held_locks+0xa6/0xf0 [ 1001.609202] ? rwsem_down_read_failed+0x21f/0x3c0 [ 1001.614473] schedule+0x92/0x1c0 [ 1001.617938] rwsem_down_read_failed+0x21f/0x3c0 [ 1001.622915] ? rt_mutex_futex_unlock+0xe0/0xe0 [ 1001.627527] ? __might_fault+0x104/0x1b0 [ 1001.631935] ? SyS_futex+0x1c5/0x2c3 [ 1001.635658] ? SyS_futex+0x1cf/0x2c3 [ 1001.639378] ? do_futex+0x17f0/0x17f0 [ 1001.643567] call_rwsem_down_read_failed+0x14/0x30 [ 1001.648526] down_read+0x45/0xa0 [ 1001.652274] ? do_exit+0x503/0x2960 [ 1001.655913] do_exit+0x503/0x2960 [ 1001.659375] ? drop_futex_key_refs.isra.0+0x17/0xa0 [ 1001.664790] ? mm_update_next_owner+0x5b0/0x5b0 [ 1001.669487] ? get_signal+0x2e3/0x1a90 [ 1001.673734] ? lock_downgrade+0x5d0/0x5d0 [ 1001.677894] ? lock_acquire+0x10f/0x380 [ 1001.682235] ? get_signal+0x1d6/0x1a90 [ 1001.686146] ? do_group_exit+0x100/0x2e0 [ 1001.690537] ? get_signal+0x34e/0x1a90 [ 1001.694449] ? trace_hardirqs_on+0x10/0x10 [ 1001.698773] ? do_signal+0x96/0x15c0 [ 1001.702895] ? get_unused_fd_flags+0xc0/0xc0 [ 1001.707328] ? __might_fault+0x104/0x1b0 [ 1001.711784] ? setup_sigcontext+0x810/0x810 [ 1001.716642] ? lock_acquire+0x10f/0x380 [ 1001.720938] ? __might_fault+0xd4/0x1b0 [ 1001.725047] ? _copy_to_user+0x82/0xd0 [ 1001.728964] ? SyS_futex+0x1c5/0x2c3 [ 1001.733087] ? SyS_futex+0x1cf/0x2c3 [ 1001.736818] ? do_futex+0x17f0/0x17f0 [ 1001.740987] ? exit_to_usermode_loop+0xcd/0x160 [ 1001.745942] ? exit_to_usermode_loop+0x11d/0x160 [ 1001.751068] ? do_syscall_64+0x372/0x4b0 [ 1001.755165] ? entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 1001.760911] [ 1001.760911] Showing all locks held in the system: [ 1001.767258] 1 lock held by khungtaskd/23: [ 1001.771517] #0: (tasklist_lock){.+.+}, at: [< (ptrval)>] debug_show_all_locks+0x7c/0x21a [ 1001.780602] 2 locks held by getty/1760: [ 1001.784586] #0: (&tty->ldisc_sem){++++}, at: [< (ptrval)>] tty_ldisc_ref_wait+0x22/0x80 [ 1001.793688] #1: (&ldata->atomic_read_lock){+.+.}, at: [< (ptrval)>] n_tty_read+0x1f7/0x1700 [ 1001.803052] 1 lock held by syz-executor.3/11943: [ 1001.807800] #0: (&mm->mmap_sem){++++}, at: [< (ptrval)>] do_exit+0x503/0x2960 [ 1001.815933] 1 lock held by syz-executor.3/11945: [ 1001.820716] #0: (&mm->mmap_sem){++++}, at: [< (ptrval)>] do_exit+0x503/0x2960 [ 1001.828795] [ 1001.830448] ============================================= [ 1001.830448] [ 1001.839812] NMI backtrace for cpu 1 [ 1001.843518] CPU: 1 PID: 23 Comm: khungtaskd Not tainted 4.14.113+ #59 [ 1001.850093] Call Trace: [ 1001.852682] dump_stack+0xb9/0x10e [ 1001.856303] ? irq_force_complete_move.cold+0x2c/0x7b [ 1001.861502] nmi_cpu_backtrace.cold+0x47/0x86 [ 1001.866004] ? irq_force_complete_move.cold+0x7b/0x7b [ 1001.871195] ? nmi_trigger_cpumask_backtrace+0x119/0x147 [ 1001.876816] ? watchdog+0x5e2/0xb80 [ 1001.880460] ? hungtask_pm_notify+0x50/0x50 [ 1001.884829] ? kthread+0x310/0x420 [ 1001.888373] ? kthread_create_on_node+0xf0/0xf0 [ 1001.893043] ? ret_from_fork+0x3a/0x50 [ 1001.897024] Sending NMI from CPU 1 to CPUs 0: [ 1001.902036] NMI backtrace for cpu 0 [ 1001.902040] CPU: 0 PID: 11950 Comm: syz-executor.3 Not tainted 4.14.113+ #59 [ 1001.902043] task: (ptrval) task.stack: (ptrval) [ 1001.902046] RIP: 0010:__lock_is_held+0xd3/0x160 [ 1001.902049] RSP: 0018:ffff8881c2567a30 EFLAGS: 00000046 [ 1001.902054] RAX: 0000000000000003 RBX: ffff8881cc273730 RCX: 1ffffffff2d82558 [ 1001.902058] RDX: 0000000000000000 RSI: 00000000ffffffff RDI: ffff8881cc273752 [ 1001.902061] RBP: 0000000000000001 R08: ffffffff94a0260c R09: dffffc0000000000 [ 1001.902064] R10: ffff8881c2567c68 R11: 0000000000000001 R12: ffff8881cc273730 [ 1001.902068] R13: ffffffff96ad3360 R14: dffffc0000000000 R15: ffff8881cc272f00 [ 1001.902071] FS: 00007f3f7137f700(0000) GS:ffff8881d7600000(0000) knlGS:0000000000000000 [ 1001.902074] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 1001.902077] CR2: 0000000002273000 CR3: 00000001ccdb6002 CR4: 00000000001606b0 [ 1001.902079] Call Trace: [ 1001.902082] ? perf_mmap+0x50c/0x1390 [ 1001.902106] lock_is_held_type+0xb3/0x150 [ 1001.902109] ___might_sleep+0x1c6/0x280 [ 1001.902111] ? perf_mmap+0x50c/0x1390 [ 1001.902113] ? __mutex_lock+0xc8/0x1430 [ 1001.902116] ? perf_mmap+0x50c/0x1390 [ 1001.902118] ? lock_downgrade+0x5d0/0x5d0 [ 1001.902121] ? __ww_mutex_wakeup_for_backoff+0x210/0x210 [ 1001.902123] ? __mutex_unlock_slowpath+0x9a/0x7d0 [ 1001.902126] ? retint_kernel+0x2d/0x2d [ 1001.902128] ? wait_for_completion_io+0x10/0x10 [ 1001.902131] ? perf_mmap+0x637/0x1390 [ 1001.902133] ? perf_mmap+0x50c/0x1390 [ 1001.902135] ? perf_mmap+0x50c/0x1390 [ 1001.902138] ? kmem_cache_alloc+0x271/0x2d0 [ 1001.902140] ? mmap_region+0x7c9/0xf00 [ 1001.902142] ? do_mmap+0x548/0xb80 [ 1001.902145] ? vm_mmap_pgoff+0x177/0x1c0 [ 1001.902147] ? vma_is_stack_for_current+0xb0/0xb0 [ 1001.902149] ? __fget+0x226/0x360 [ 1001.902152] ? SyS_mmap_pgoff+0xf4/0x1b0 [ 1001.902154] ? align_vdso_addr+0x60/0x60 [ 1001.902157] ? do_syscall_64+0x19b/0x4b0 [ 1001.902159] ? entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 1001.902161] Code: 84 d2 0f 85 9c 00 00 00 66 f7 43 22 f0 ff 74 0f 4c 89 ee 48 89 df e8 0d f8 ff ff 85 c0 75 1d 83 c5 01 41 39 af 28 08 00 00 7f 91 <48> 83 c4 08 31 c0 5b 5d 41 5c 41 5d 41 5e 41 5f c3 83 7c 24 04 [ 1001.903951] Kernel panic - not syncing: hung_task: blocked tasks [ 1002.113976] CPU: 1 PID: 23 Comm: khungtaskd Not tainted 4.14.113+ #59 [ 1002.120565] Call Trace: [ 1002.123167] dump_stack+0xb9/0x10e [ 1002.126728] panic+0x1d9/0x3c2 [ 1002.129919] ? add_taint.cold+0x16/0x16 [ 1002.133908] ? irq_force_complete_move.cold+0x7b/0x7b [ 1002.139104] ? ___preempt_schedule+0x16/0x18 [ 1002.143526] watchdog+0x5f3/0xb80 [ 1002.146984] ? hungtask_pm_notify+0x50/0x50 [ 1002.151310] kthread+0x310/0x420 [ 1002.154680] ? kthread_create_on_node+0xf0/0xf0 [ 1002.159448] ret_from_fork+0x3a/0x50 [ 1002.163503] Kernel Offset: 0x13600000 from 0xffffffff81000000 (relocation range: 0xffffffff80000000-0xffffffffbfffffff) [ 1002.174551] Rebooting in 86400 seconds..