Warning: Permanently added '10.128.0.172' (ECDSA) to the list of known hosts. executing program [ 401.570668][ T26] audit: type=1400 audit(1562054886.645:36): avc: denied { map } for pid=9124 comm="syz-executor181" path="/root/syz-executor181223332" 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 [ 401.585056][ T9125] IPVS: ftp: loaded support on port[0] = 21 [ 401.750421][ T9126] block nbd0: shutting down sockets [ 549.078122][ T1042] INFO: task syz-executor181:9127 blocked for more than 143 seconds. [ 549.086573][ T1042] Not tainted 5.2.0-rc7 #39 [ 549.092153][ T1042] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 549.100916][ T1042] syz-executor181 D28528 9127 9124 0x00004004 [ 549.107250][ T1042] Call Trace: [ 549.110621][ T1042] __schedule+0x7cb/0x1560 [ 549.115026][ T1042] ? __sched_text_start+0x8/0x8 [ 549.119916][ T1042] ? generic_make_request+0x321/0xb40 [ 549.125289][ T1042] schedule+0xa8/0x260 [ 549.129429][ T1042] schedule_timeout+0x717/0xc50 [ 549.134284][ T1042] ? usleep_range+0x170/0x170 [ 549.139036][ T1042] ? find_held_lock+0x35/0x130 [ 549.143814][ T1042] ? wait_for_completion_io+0x294/0x440 [ 549.149467][ T1042] ? kasan_check_write+0x14/0x20 [ 549.154406][ T1042] ? _raw_spin_unlock_irq+0x28/0x90 [ 549.159694][ T1042] ? wait_for_completion_io+0x294/0x440 [ 549.165396][ T1042] ? _raw_spin_unlock_irq+0x28/0x90 [ 549.170662][ T1042] ? lockdep_hardirqs_on+0x418/0x5d0 [ 549.175939][ T1042] io_schedule_timeout+0x26/0x80 [ 549.180929][ T1042] wait_for_completion_io+0x29c/0x440 [ 549.186294][ T1042] ? bit_wait_io_timeout+0x140/0x140 [ 549.191640][ T1042] ? wake_up_q+0xf0/0xf0 [ 549.195978][ T1042] ? lockdep_init_map+0x1be/0x6d0 [ 549.201102][ T1042] submit_bio_wait+0x11d/0x1c0 [ 549.205915][ T1042] ? submit_bio_wait_endio+0x40/0x40 [ 549.211330][ T1042] ? bio_associate_blkg+0x143/0x390 [ 549.216524][ T1042] blkdev_issue_flush+0x20d/0x300 [ 549.222044][ T1042] blkdev_fsync+0x95/0xd0 [ 549.226359][ T1042] ? thaw_bdev+0x1a0/0x1a0 [ 549.230869][ T1042] vfs_fsync_range+0x141/0x230 [ 549.235704][ T1042] ? __fget_light+0x1a9/0x230 [ 549.240522][ T1042] do_fsync+0x54/0xa0 [ 549.244492][ T1042] __x64_sys_fdatasync+0x36/0x50 [ 549.249482][ T1042] do_syscall_64+0xfd/0x680 [ 549.253973][ T1042] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 549.259939][ T1042] RIP: 0033:0x449ee9 [ 549.263858][ T1042] Code: Bad RIP value. [ 549.268050][ T1042] RSP: 002b:00007f9585dc5ce8 EFLAGS: 00000246 ORIG_RAX: 000000000000004b [ 549.276577][ T1042] RAX: ffffffffffffffda RBX: 00000000006dbc58 RCX: 0000000000449ee9 [ 549.284637][ T1042] RDX: 0000000000449ee9 RSI: 0000000000000000 RDI: 0000000000000009 [ 549.292697][ T1042] RBP: 00000000006dbc50 R08: 0000000000000000 R09: 0000000000000000 [ 549.300861][ T1042] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dbc5c [ 549.308908][ T1042] R13: 00007ffdff9c94cf R14: 00007f9585dc69c0 R15: 000000000000002d [ 549.316917][ T1042] [ 549.316917][ T1042] Showing all locks held in the system: [ 549.324715][ T1042] 1 lock held by khungtaskd/1042: [ 549.329755][ T1042] #0: 00000000157a165b (rcu_read_lock){....}, at: debug_show_all_locks+0x5f/0x27e [ 549.339248][ T1042] 1 lock held by rsyslogd/8974: [ 549.344109][ T1042] #0: 00000000b79d448d (&f->f_pos_lock){+.+.}, at: __fdget_pos+0xee/0x110 [ 549.353244][ T1042] 2 locks held by getty/9096: [ 549.357973][ T1042] #0: 00000000828483d0 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 [ 549.367029][ T1042] #1: 0000000056df9ec9 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1b70 [ 549.376879][ T1042] 2 locks held by getty/9097: [ 549.381591][ T1042] #0: 00000000d2c80559 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 [ 549.390618][ T1042] #1: 00000000f827a46b (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1b70 [ 549.400234][ T1042] 2 locks held by getty/9098: [ 549.404980][ T1042] #0: 0000000059cdb01f (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 [ 549.414236][ T1042] #1: 0000000068caf1a6 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1b70 [ 549.423884][ T1042] 2 locks held by getty/9099: [ 549.428625][ T1042] #0: 00000000c35eb1b4 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 [ 549.437657][ T1042] #1: 0000000030d85cd9 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1b70 [ 549.447518][ T1042] 2 locks held by getty/9100: [ 549.452410][ T1042] #0: 0000000027e907f0 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 [ 549.461458][ T1042] #1: 00000000540edcb4 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1b70 [ 549.471216][ T1042] 2 locks held by getty/9101: [ 549.476011][ T1042] #0: 000000004f6f958d (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 [ 549.485869][ T1042] #1: 00000000956fe3e2 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1b70 [ 549.496096][ T1042] 2 locks held by getty/9102: [ 549.500809][ T1042] #0: 000000003d70fbd4 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 [ 549.510947][ T1042] #1: 00000000f02db2a4 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1b70 [ 549.520900][ T1042] [ 549.523218][ T1042] ============================================= [ 549.523218][ T1042] [ 549.532030][ T1042] NMI backtrace for cpu 1 [ 549.536759][ T1042] CPU: 1 PID: 1042 Comm: khungtaskd Not tainted 5.2.0-rc7 #39 [ 549.544466][ T1042] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 549.554536][ T1042] Call Trace: [ 549.557848][ T1042] dump_stack+0x172/0x1f0 [ 549.562198][ T1042] nmi_cpu_backtrace.cold+0x63/0xa4 [ 549.567426][ T1042] ? lapic_can_unplug_cpu.cold+0x38/0x38 [ 549.573181][ T1042] nmi_trigger_cpumask_backtrace+0x1be/0x236 [ 549.579194][ T1042] arch_trigger_cpumask_backtrace+0x14/0x20 [ 549.585139][ T1042] watchdog+0x9b7/0xec0 [ 549.589500][ T1042] kthread+0x354/0x420 [ 549.593570][ T1042] ? reset_hung_task_detector+0x30/0x30 [ 549.599130][ T1042] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 549.605456][ T1042] ret_from_fork+0x24/0x30 [ 549.610160][ T1042] Sending NMI from CPU 1 to CPUs 0: [ 549.615562][ C0] NMI backtrace for cpu 0 skipped: idling at native_safe_halt+0xe/0x10 [ 549.616488][ T1042] Kernel panic - not syncing: hung_task: blocked tasks [ 549.630688][ T1042] CPU: 1 PID: 1042 Comm: khungtaskd Not tainted 5.2.0-rc7 #39 [ 549.638145][ T1042] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 549.648206][ T1042] Call Trace: [ 549.651774][ T1042] dump_stack+0x172/0x1f0 [ 549.656469][ T1042] panic+0x2cb/0x744 [ 549.660515][ T1042] ? __warn_printk+0xf3/0xf3 [ 549.666103][ T1042] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 549.673032][ T1042] ? printk_safe_flush+0xf2/0x140 [ 549.679087][ T1042] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 549.685932][ T1042] ? lapic_can_unplug_cpu.cold+0x38/0x38 [ 549.691579][ T1042] ? nmi_trigger_cpumask_backtrace+0x1a7/0x236 [ 549.697884][ T1042] ? nmi_trigger_cpumask_backtrace+0x19e/0x236 [ 549.704068][ T1042] watchdog+0x9c8/0xec0 [ 549.708245][ T1042] kthread+0x354/0x420 [ 549.712695][ T1042] ? reset_hung_task_detector+0x30/0x30 [ 549.718584][ T1042] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 549.730758][ T1042] ret_from_fork+0x24/0x30 [ 549.737767][ T1042] Kernel Offset: disabled [ 549.742136][ T1042] Rebooting in 86400 seconds..