[ 77.835992][ T27] audit: type=1800 audit(1565694369.140:26): pid=10226 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 77.883245][ T27] audit: type=1800 audit(1565694369.140:27): pid=10226 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 res=0 [ 77.908157][ T27] audit: type=1800 audit(1565694369.140:28): pid=10226 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="ssh" dev="sda1" ino=2417 res=0 [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. [ 78.783029][ T27] audit: type=1800 audit(1565694370.120:29): pid=10226 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="rc.local" dev="sda1" ino=2432 res=0 Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.61' (ECDSA) to the list of known hosts. 2019/08/13 11:21:12 parsed 1 programs 2019/08/13 11:21:13 executed programs: 0 syzkaller login: [ 982.601580][T10399] IPVS: ftp: loaded support on port[0] = 21 [ 982.662089][T10399] chnl_net:caif_netlink_parms(): no params data found [ 982.691540][T10399] bridge0: port 1(bridge_slave_0) entered blocking state [ 982.699266][T10399] bridge0: port 1(bridge_slave_0) entered disabled state [ 982.707143][T10399] device bridge_slave_0 entered promiscuous mode [ 982.714515][T10399] bridge0: port 2(bridge_slave_1) entered blocking state [ 982.722260][T10399] bridge0: port 2(bridge_slave_1) entered disabled state [ 982.729945][T10399] device bridge_slave_1 entered promiscuous mode [ 982.745277][T10399] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 982.758679][T10399] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 982.775453][T10399] team0: Port device team_slave_0 added [ 982.782516][T10399] team0: Port device team_slave_1 added [ 982.858145][T10399] device hsr_slave_0 entered promiscuous mode [ 982.896493][T10399] device hsr_slave_1 entered promiscuous mode [ 982.942433][T10399] bridge0: port 2(bridge_slave_1) entered blocking state [ 982.949542][T10399] bridge0: port 2(bridge_slave_1) entered forwarding state [ 982.957021][T10399] bridge0: port 1(bridge_slave_0) entered blocking state [ 982.964062][T10399] bridge0: port 1(bridge_slave_0) entered forwarding state [ 982.993709][T10399] 8021q: adding VLAN 0 to HW filter on device bond0 [ 983.004606][T10402] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 983.023620][T10402] bridge0: port 1(bridge_slave_0) entered disabled state [ 983.031617][T10402] bridge0: port 2(bridge_slave_1) entered disabled state [ 983.040167][T10402] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 983.050771][T10399] 8021q: adding VLAN 0 to HW filter on device team0 [ 983.060442][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 983.068987][ T12] bridge0: port 1(bridge_slave_0) entered blocking state [ 983.076061][ T12] bridge0: port 1(bridge_slave_0) entered forwarding state [ 983.086055][T10402] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 983.094274][T10402] bridge0: port 2(bridge_slave_1) entered blocking state [ 983.101478][T10402] bridge0: port 2(bridge_slave_1) entered forwarding state [ 983.115417][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 983.125056][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 983.135291][T10402] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 983.147184][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 983.157880][T10399] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 983.169477][T10399] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 983.177313][T10402] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 983.192546][T10399] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 1138.766218][ T1060] INFO: task syz-executor.0:10417 blocked for more than 143 seconds. [ 1138.774371][ T1060] Not tainted 5.3.0-rc4-next-20190812+ #64 [ 1138.781817][ T1060] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 1138.790960][ T1060] syz-executor.0 D28368 10417 10399 0x80004004 [ 1138.802095][ T1060] Call Trace: [ 1138.805565][ T1060] __schedule+0x76e/0x17d0 [ 1138.810569][ T1060] ? __sched_text_start+0x8/0x8 [ 1138.815492][ T1060] ? rwlock_bug.part.0+0x90/0x90 [ 1138.821330][ T1060] ? rwsem_down_read_slowpath+0x647/0xfb0 [ 1138.827319][ T1060] schedule+0xa8/0x270 [ 1138.831529][ T1060] rwsem_down_read_slowpath+0x4cc/0xfb0 [ 1138.837873][ T1060] ? down_write+0x150/0x150 [ 1138.842408][ T1060] ? mark_held_locks+0xf0/0xf0 [ 1138.847617][ T1060] ? lock_acquire+0x190/0x410 [ 1138.852321][ T1060] ? do_exit+0x47b/0x2e50 [ 1138.857917][ T1060] down_read+0x1f2/0x430 [ 1138.862268][ T1060] ? down_read+0xa2/0x430 [ 1138.866908][ T1060] ? down_read+0x1f2/0x430 [ 1138.871380][ T1060] ? down_read_killable+0x490/0x490 [ 1138.877495][ T1060] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 1138.883777][ T1060] ? sync_mm_rss+0xa4/0x1c0 [ 1138.888758][ T1060] do_exit+0x47b/0x2e50 [ 1138.892950][ T1060] ? __pv_queued_spin_lock_slowpath+0xd10/0xd10 [ 1138.900197][ T1060] ? mm_update_next_owner+0x640/0x640 [ 1138.906161][ T1060] ? lock_downgrade+0x920/0x920 [ 1138.911125][ T1060] ? rwlock_bug.part.0+0x90/0x90 [ 1138.917015][ T1060] ? get_signal+0x20e/0x2500 [ 1138.921627][ T1060] do_group_exit+0x135/0x360 [ 1138.927635][ T1060] get_signal+0x47c/0x2500 [ 1138.932143][ T1060] ? security_mmap_file+0x1a5/0x1e0 [ 1138.938132][ T1060] ? vm_mmap_pgoff+0x107/0x230 [ 1138.942933][ T1060] do_signal+0x87/0x1700 [ 1138.947570][ T1060] ? randomize_stack_top+0x110/0x110 [ 1138.952891][ T1060] ? trace_hardirqs_on+0x67/0x240 [ 1138.958721][ T1060] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 1138.964458][ T1060] ? setup_sigcontext+0x7d0/0x7d0 [ 1138.969831][ T1060] ? ksys_mmap_pgoff+0xff/0x630 [ 1138.974701][ T1060] ? find_mergeable_anon_vma+0x2e0/0x2e0 [ 1138.981159][ T1060] ? do_futex+0x1dc0/0x1dc0 [ 1138.985673][ T1060] ? trace_hardirqs_on+0x67/0x240 [ 1138.992086][ T1060] exit_to_usermode_loop+0x286/0x380 [ 1138.998066][ T1060] do_syscall_64+0x65f/0x760 [ 1139.002682][ T1060] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 1139.008907][ T1060] RIP: 0033:0x45987a [ 1139.012831][ T1060] Code: Bad RIP value. [ 1139.017589][ T1060] RSP: 002b:00007ffc63b748a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000009 [ 1139.026287][ T1060] RAX: fffffffffffffffc RBX: 0000000000000003 RCX: 000000000045987a [ 1139.034261][ T1060] RDX: 0000000000000003 RSI: 0000000000021000 RDI: 0000000000000000 [ 1139.043191][ T1060] RBP: ffffffffffffffff R08: ffffffffffffffff R09: 0000000000000000 [ 1139.051421][ T1060] R10: 0000000000020022 R11: 0000000000000246 R12: 0000000000000000 [ 1139.060156][ T1060] R13: 0000000000021000 R14: 0000000000020022 R15: 0000000000000000 [ 1139.068469][ T1060] INFO: task syz-executor.0:10418 blocked for more than 143 seconds. [ 1139.077318][ T1060] Not tainted 5.3.0-rc4-next-20190812+ #64 [ 1139.083641][ T1060] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 1139.092636][ T1060] syz-executor.0 D28392 10418 10399 0x80004004 [ 1139.099753][ T1060] Call Trace: [ 1139.103069][ T1060] __schedule+0x76e/0x17d0 [ 1139.107790][ T1060] ? __sched_text_start+0x8/0x8 [ 1139.112652][ T1060] ? rwlock_bug.part.0+0x90/0x90 [ 1139.118895][ T1060] ? rwsem_down_read_slowpath+0x647/0xfb0 [ 1139.124627][ T1060] schedule+0xa8/0x270 [ 1139.129074][ T1060] rwsem_down_read_slowpath+0x4cc/0xfb0 [ 1139.134633][ T1060] ? down_write+0x150/0x150 [ 1139.139967][ T1060] ? mark_held_locks+0xf0/0xf0 [ 1139.144846][ T1060] ? lock_acquire+0x190/0x410 [ 1139.150081][ T1060] ? do_exit+0x47b/0x2e50 [ 1139.154457][ T1060] down_read+0x1f2/0x430 [ 1139.159612][ T1060] ? down_read+0xa2/0x430 [ 1139.163955][ T1060] ? down_read+0x1f2/0x430 [ 1139.168673][ T1060] ? down_read_killable+0x490/0x490 [ 1139.173890][ T1060] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 1139.180952][ T1060] ? sync_mm_rss+0xa4/0x1c0 [ 1139.185467][ T1060] do_exit+0x47b/0x2e50 [ 1139.189980][ T1060] ? mm_update_next_owner+0x640/0x640 [ 1139.195469][ T1060] ? __kasan_check_write+0x14/0x20 [ 1139.201412][ T1060] ? lock_downgrade+0x920/0x920 [ 1139.206638][ T1060] ? rwlock_bug.part.0+0x90/0x90 [ 1139.211593][ T1060] ? get_signal+0x20e/0x2500 [ 1139.217025][ T1060] do_group_exit+0x135/0x360 [ 1139.221639][ T1060] get_signal+0x47c/0x2500 [ 1139.226349][ T1060] ? lock_downgrade+0x920/0x920 [ 1139.231240][ T1060] ? __might_fault+0xfb/0x1e0 [ 1139.236713][ T1060] do_signal+0x87/0x1700 [ 1139.250295][ T1060] ? __kasan_check_read+0x11/0x20 [ 1139.255426][ T1060] ? _copy_to_user+0x118/0x160 [ 1139.261085][ T1060] ? setup_sigcontext+0x7d0/0x7d0 [ 1139.266421][ T1060] ? do_futex+0x1dc0/0x1dc0 [ 1139.270952][ T1060] ? trace_hardirqs_on+0x67/0x240 [ 1139.276785][ T1060] exit_to_usermode_loop+0x286/0x380 [ 1139.282087][ T1060] do_syscall_64+0x65f/0x760 [ 1139.287125][ T1060] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 1139.293223][ T1060] RIP: 0033:0x459829 [ 1139.298009][ T1060] Code: Bad RIP value. [ 1139.302079][ T1060] RSP: 002b:00007f47f0aabcf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 1139.310827][ T1060] RAX: fffffffffffffe00 RBX: 000000000075bf28 RCX: 0000000000459829 [ 1139.319584][ T1060] RDX: 0000000000000000 RSI: 0000000000000080 RDI: 000000000075bf28 [ 1139.327824][ T1060] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 1139.335803][ T1060] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000075bf2c [ 1139.344626][ T1060] R13: 00007ffc63b7494f R14: 00007f47f0aac9c0 R15: 000000000075bf2c [ 1139.352986][ T1060] INFO: task syz-executor.0:10421 blocked for more than 143 seconds. [ 1139.361843][ T1060] Not tainted 5.3.0-rc4-next-20190812+ #64 [ 1139.368432][ T1060] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 1139.378448][ T1060] syz-executor.0 D28968 10421 10399 0x80004004 [ 1139.384832][ T1060] Call Trace: [ 1139.390054][ T1060] __schedule+0x76e/0x17d0 [ 1139.394487][ T1060] ? __sched_text_start+0x8/0x8 [ 1139.400211][ T1060] ? rwlock_bug.part.0+0x90/0x90 [ 1139.405174][ T1060] ? rwsem_down_read_slowpath+0x647/0xfb0 [ 1139.411454][ T1060] schedule+0xa8/0x270 [ 1139.415539][ T1060] rwsem_down_read_slowpath+0x4cc/0xfb0 [ 1139.421896][ T1060] ? down_write+0x150/0x150 [ 1139.426682][ T1060] ? mark_held_locks+0xf0/0xf0 [ 1139.431458][ T1060] ? __kasan_check_read+0x11/0x20 [ 1139.437312][ T1060] ? do_exit+0x29e/0x2e50 [ 1139.441677][ T1060] ? lock_acquire+0x190/0x410 [ 1139.446717][ T1060] ? acct_collect+0xf3/0x850 [ 1139.451342][ T1060] down_read+0x1f2/0x430 [ 1139.455593][ T1060] ? down_read+0xa2/0x430 [ 1139.460760][ T1060] ? down_read+0x1f2/0x430 [ 1139.465185][ T1060] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 1139.471775][ T1060] ? down_read_killable+0x490/0x490 [ 1139.477740][ T1060] ? lock_downgrade+0x920/0x920 [ 1139.482606][ T1060] ? hrtimer_run_softirq+0x270/0x270 [ 1139.488236][ T1060] acct_collect+0xf3/0x850 [ 1139.492846][ T1060] do_exit+0x1b56/0x2e50 [ 1139.497932][ T1060] ? mm_update_next_owner+0x640/0x640 [ 1139.503417][ T1060] ? __kasan_check_write+0x14/0x20 [ 1139.509268][ T1060] ? lock_downgrade+0x920/0x920 [ 1139.514128][ T1060] ? rwlock_bug.part.0+0x90/0x90 [ 1139.519971][ T1060] ? get_signal+0x20e/0x2500 [ 1139.524578][ T1060] do_group_exit+0x135/0x360 [ 1139.529522][ T1060] get_signal+0x47c/0x2500 [ 1139.533961][ T1060] ? lock_downgrade+0x920/0x920 [ 1139.539680][ T1060] ? __might_fault+0xfb/0x1e0 [ 1139.544511][ T1060] do_signal+0x87/0x1700 [ 1139.549127][ T1060] ? __kasan_check_read+0x11/0x20 [ 1139.554158][ T1060] ? _copy_to_user+0x118/0x160 [ 1139.559709][ T1060] ? setup_sigcontext+0x7d0/0x7d0 [ 1139.564753][ T1060] ? do_futex+0x1dc0/0x1dc0 [ 1139.569774][ T1060] ? trace_hardirqs_on+0x67/0x240 [ 1139.574810][ T1060] exit_to_usermode_loop+0x286/0x380 [ 1139.580892][ T1060] do_syscall_64+0x65f/0x760 [ 1139.585492][ T1060] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 1139.591803][ T1060] RIP: 0033:0x459829 [ 1139.595713][ T1060] Code: Bad RIP value. [ 1139.600621][ T1060] RSP: 002b:00007f47f0a8acf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 1139.609402][ T1060] RAX: fffffffffffffe00 RBX: 000000000075bfd0 RCX: 0000000000459829 [ 1139.618264][ T1060] RDX: 0000000000000000 RSI: 0000000000000080 RDI: 000000000075bfd0 [ 1139.626766][ T1060] RBP: 000000000075bfc8 R08: 0000000000000000 R09: 0000000000000000 [ 1139.634754][ T1060] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000075bfd4 [ 1139.643963][ T1060] R13: 00007ffc63b7494f R14: 00007f47f0a8b9c0 R15: 000000000075bfd4 [ 1139.652263][ T1060] INFO: task syz-executor.0:10420 can't die for more than 144 seconds. [ 1139.661352][ T1060] syz-executor.0 R running task 28520 10420 10418 0x00004006 [ 1139.669614][ T1060] Call Trace: [ 1139.672917][ T1060] __schedule+0x776/0x17d0 [ 1139.678112][ T1060] ? retint_kernel+0x2b/0x2b [ 1139.682712][ T1060] ? trace_hardirqs_on_caller+0x6a/0x240 [ 1139.688650][ T1060] ? retint_kernel+0x2b/0x2b [ 1139.693247][ T1060] ? trace_hardirqs_on_caller+0x6a/0x240 [ 1139.699696][ T1060] ? trace_hardirqs_on_thunk+0x1a/0x20 [ 1139.705181][ T1060] ? __this_cpu_preempt_check+0x31/0x210 [ 1139.711213][ T1060] ? mark_held_locks+0xf0/0xf0 [ 1139.716689][ T1060] ? lock_acquire+0x190/0x410 [ 1139.721372][ T1060] ? lock_acquire+0x330/0x410 [ 1139.727044][ T1060] ? perf_mmap+0x734/0x1920 [ 1139.731580][ T1060] ? __mutex_lock+0x45d/0x13c0 [ 1139.737115][ T1060] ? perf_mmap+0x743/0x1920 [ 1139.741632][ T1060] ? __mutex_unlock_slowpath+0xf8/0x6b0 [ 1139.747472][ T1060] ? mutex_lock_io_nested+0x1260/0x1260 [ 1139.753024][ T1060] ? check_memory_region+0x1d/0x1a0 [ 1139.759017][ T1060] ? __kasan_check_write+0x14/0x20 [ 1139.764139][ T1060] ? __mutex_unlock_slowpath+0xf8/0x6b0 [ 1139.770384][ T1060] ? __this_cpu_preempt_check+0x3a/0x210 [ 1139.776922][ T1060] ? retint_kernel+0x2b/0x2b [ 1139.781676][ T1060] ? wait_for_completion+0x440/0x440 [ 1139.787270][ T1060] ? mutex_unlock+0xd/0x10 [ 1139.791815][ T1060] ? perf_mmap+0x743/0x1920 [ 1139.797166][ T1060] ? perf_release+0x50/0x50 [ 1139.801684][ T1060] ? memset+0x32/0x40 [ 1139.805669][ T1060] ? mmap_region+0xc35/0x1760 [ 1139.810887][ T1060] ? __x64_sys_brk+0x760/0x760 [ 1139.816566][ T1060] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 1139.822817][ T1060] ? get_unmapped_area+0x2ad/0x3d0 [ 1139.828261][ T1060] ? do_mmap+0x82e/0x1150 [ 1139.832958][ T1060] ? vm_mmap_pgoff+0x1c5/0x230 [ 1139.838561][ T1060] ? randomize_stack_top+0x110/0x110 [ 1139.843882][ T1060] ? ksys_dup3+0x3e0/0x3e0 [ 1139.848907][ T1060] ? _copy_to_user+0x118/0x160 [ 1139.853887][ T1060] ? ksys_mmap_pgoff+0x4aa/0x630 [ 1139.859876][ T1060] ? find_mergeable_anon_vma+0x2e0/0x2e0 [ 1139.865532][ T1060] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 1139.872268][ T1060] ? __x64_sys_clock_gettime+0x16d/0x240 [ 1139.878822][ T1060] ? __x64_sys_mmap+0xe9/0x1b0 [ 1139.883618][ T1060] ? do_syscall_64+0xfa/0x760 [ 1139.888757][ T1060] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 1139.894849][ T1060] INFO: task syz-executor.0:10422 blocked for more than 144 seconds. [ 1139.904234][ T1060] Not tainted 5.3.0-rc4-next-20190812+ #64 [ 1139.910971][ T1060] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 1139.920454][ T1060] syz-executor.0 D29392 10422 10421 0x80000000 [ 1139.927205][ T1060] Call Trace: [ 1139.930509][ T1060] __schedule+0x76e/0x17d0 [ 1139.934922][ T1060] ? __sched_text_start+0x8/0x8 [ 1139.941015][ T1060] ? rwlock_bug.part.0+0x90/0x90 [ 1139.946387][ T1060] ? rwsem_down_read_slowpath+0x647/0xfb0 [ 1139.952133][ T1060] schedule+0xa8/0x270 [ 1139.957053][ T1060] rwsem_down_read_slowpath+0x4cc/0xfb0 [ 1139.962628][ T1060] ? down_write+0x150/0x150 [ 1139.967492][ T1060] ? mark_held_locks+0xf0/0xf0 [ 1139.972266][ T1060] ? rcuwait_wake_up+0x11d/0x230 [ 1139.978019][ T1060] ? __kasan_check_read+0x11/0x20 [ 1139.983056][ T1060] ? do_exit+0x29e/0x2e50 [ 1139.987845][ T1060] ? lock_acquire+0x190/0x410 [ 1139.992559][ T1060] ? acct_collect+0xf3/0x850 [ 1139.997963][ T1060] down_read+0x1f2/0x430 [ 1140.002216][ T1060] ? down_read+0x1f2/0x430 [ 1140.006960][ T1060] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 1140.013209][ T1060] ? down_read_killable+0x490/0x490 [ 1140.019170][ T1060] ? lock_downgrade+0x920/0x920 [ 1140.024031][ T1060] ? hrtimer_run_softirq+0x270/0x270 [ 1140.029998][ T1060] acct_collect+0xf3/0x850 [ 1140.034428][ T1060] do_exit+0x1b56/0x2e50 [ 1140.039481][ T1060] ? mm_update_next_owner+0x640/0x640 [ 1140.044957][ T1060] ? force_sig_info+0x30/0x30 [ 1140.049992][ T1060] do_group_exit+0x135/0x360 [ 1140.054602][ T1060] __x64_sys_exit_group+0x44/0x50 [ 1140.060686][ T1060] do_syscall_64+0xfa/0x760 [ 1140.065208][ T1060] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 1140.071461][ T1060] RIP: 0033:0x459829 [ 1140.075366][ T1060] Code: Bad RIP value. [ 1140.080180][ T1060] RSP: 002b:00007f47f0a8a688 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 1140.088910][ T1060] RAX: ffffffffffffffda RBX: 000000000000000b RCX: 0000000000459829 [ 1140.097651][ T1060] RDX: 0000000000459829 RSI: 00007f47f0a8a6c0 RDI: 000000000000000b [ 1140.105631][ T1060] RBP: 000000000075bfc8 R08: 0000000000000000 R09: 0000000000000000 [ 1140.113955][ T1060] R10: ffffffffffffffff R11: 0000000000000246 R12: 00007f47f0a8b6d4 [ 1140.122649][ T1060] R13: 00000000004bfce6 R14: 00000000004d1a38 R15: 00000000ffffffff [ 1140.131039][ T1060] INFO: lockdep is turned off. [ 1140.135802][ T1060] NMI backtrace for cpu 1 [ 1140.140200][ T1060] CPU: 1 PID: 1060 Comm: khungtaskd Not tainted 5.3.0-rc4-next-20190812+ #64 [ 1140.148954][ T1060] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 1140.159001][ T1060] Call Trace: [ 1140.162326][ T1060] dump_stack+0x172/0x1f0 [ 1140.166652][ T1060] nmi_cpu_backtrace.cold+0x70/0xb2 [ 1140.171849][ T1060] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 1140.178121][ T1060] ? lapic_can_unplug_cpu.cold+0x45/0x45 [ 1140.183782][ T1060] nmi_trigger_cpumask_backtrace+0x23b/0x28b [ 1140.189857][ T1060] arch_trigger_cpumask_backtrace+0x14/0x20 [ 1140.195754][ T1060] watchdog+0xc99/0x1360 [ 1140.200098][ T1060] kthread+0x361/0x430 [ 1140.204175][ T1060] ? reset_hung_task_detector+0x30/0x30 [ 1140.209832][ T1060] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 1140.216079][ T1060] ret_from_fork+0x24/0x30 [ 1140.220629][ T1060] Sending NMI from CPU 1 to CPUs 0: [ 1140.226578][ C0] NMI backtrace for cpu 0 [ 1140.226586][ C0] CPU: 0 PID: 10420 Comm: syz-executor.0 Not tainted 5.3.0-rc4-next-20190812+ #64 [ 1140.226592][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 1140.226596][ C0] RIP: 0010:arch_local_save_flags+0x29/0x50 [ 1140.226607][ C0] Code: 00 48 c7 c0 d8 f3 f2 88 55 48 ba 00 00 00 00 00 fc ff df 48 c1 e8 03 48 89 e5 80 3c 10 00 75 15 48 83 3d 81 d3 a4 07 00 74 09 <9c> 58 0f 1f 44 00 00 5d c3 0f 0b 48 c7 c7 d8 f3 f2 88 e8 00 ec 5e [ 1140.226611][ C0] RSP: 0018:ffff88808c15f888 EFLAGS: 00000282 [ 1140.226619][ C0] RAX: 1ffffffff11e5e7b RBX: 0000000000000000 RCX: 1ffffffff138cbae [ 1140.226624][ C0] RDX: dffffc0000000000 RSI: 00000000000003a7 RDI: ffff8880a0efa538 [ 1140.226629][ C0] RBP: ffff88808c15f888 R08: ffffffff818a9133 R09: ffffed101430c987 [ 1140.226634][ C0] R10: ffff88808c15fa98 R11: ffff8880a1864c37 R12: ffffffff87abe260 [ 1140.226639][ C0] R13: 00000000000003a7 R14: 0000000000000000 R15: ffff8880a0efa1c0 [ 1140.226645][ C0] FS: 00007f47f0aac700(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 [ 1140.226649][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 1140.226654][ C0] CR2: ffffffffff600400 CR3: 00000000983a2000 CR4: 00000000001406f0 [ 1140.226659][ C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 1140.226664][ C0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 1140.226667][ C0] Call Trace: [ 1140.226670][ C0] ___might_sleep+0x163/0x280 [ 1140.226673][ C0] __might_sleep+0x95/0x190 [ 1140.226677][ C0] ? perf_mmap+0x734/0x1920 [ 1140.226680][ C0] __mutex_lock+0xc5/0x13c0 [ 1140.226683][ C0] ? perf_mmap+0x743/0x1920 [ 1140.226686][ C0] ? retint_kernel+0x2b/0x2b [ 1140.226690][ C0] ? trace_hardirqs_on_caller+0x6a/0x240 [ 1140.226694][ C0] ? mutex_lock_io_nested+0x1260/0x1260 [ 1140.226697][ C0] ? __kasan_check_write+0x14/0x20 [ 1140.226701][ C0] ? __mutex_unlock_slowpath+0xf8/0x6b0 [ 1140.226705][ C0] ? __this_cpu_preempt_check+0x3a/0x210 [ 1140.226708][ C0] ? retint_kernel+0x2b/0x2b [ 1140.226712][ C0] ? wait_for_completion+0x440/0x440 [ 1140.226715][ C0] mutex_lock_nested+0x16/0x20 [ 1140.226719][ C0] ? mutex_lock_nested+0x16/0x20 [ 1140.226722][ C0] perf_mmap+0x743/0x1920 [ 1140.226725][ C0] ? perf_release+0x50/0x50 [ 1140.226728][ C0] ? memset+0x32/0x40 [ 1140.226731][ C0] mmap_region+0xc35/0x1760 [ 1140.226735][ C0] ? __x64_sys_brk+0x760/0x760 [ 1140.226739][ C0] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 1140.226742][ C0] ? get_unmapped_area+0x2ad/0x3d0 [ 1140.226745][ C0] do_mmap+0x82e/0x1150 [ 1140.226749][ C0] vm_mmap_pgoff+0x1c5/0x230 [ 1140.226752][ C0] ? randomize_stack_top+0x110/0x110 [ 1140.226756][ C0] ? ksys_dup3+0x3e0/0x3e0 [ 1140.226759][ C0] ? _copy_to_user+0x118/0x160 [ 1140.226762][ C0] ksys_mmap_pgoff+0x4aa/0x630 [ 1140.226766][ C0] ? find_mergeable_anon_vma+0x2e0/0x2e0 [ 1140.226770][ C0] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 1140.226774][ C0] ? __x64_sys_clock_gettime+0x16d/0x240 [ 1140.226777][ C0] __x64_sys_mmap+0xe9/0x1b0 [ 1140.226780][ C0] do_syscall_64+0xfa/0x760 [ 1140.226784][ C0] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 1140.226787][ C0] RIP: 0033:0x459829 [ 1140.226798][ C0] Code: fd b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 cb b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 1140.226802][ C0] RSP: 002b:00007f47f0aabc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000009 [ 1140.226811][ C0] RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 0000000000459829 [ 1140.226816][ C0] RDX: 0000000000000000 RSI: 0000000000003000 RDI: 0000000020ffd000 [ 1140.226821][ C0] RBP: 000000000075bf20 R08: 0000000000000003 R09: 0000000000000000 [ 1140.226830][ C0] R10: 0000000000000011 R11: 0000000000000246 R12: 00007f47f0aac6d4 [ 1140.226835][ C0] R13: 00000000004c5d1b R14: 00000000004da750 R15: 00000000ffffffff [ 1140.229766][ T1060] Kernel panic - not syncing: hung_task: blocked tasks [ 1140.612795][ T1060] CPU: 1 PID: 1060 Comm: khungtaskd Not tainted 5.3.0-rc4-next-20190812+ #64 [ 1140.621543][ T1060] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 1140.631618][ T1060] Call Trace: [ 1140.634918][ T1060] dump_stack+0x172/0x1f0 [ 1140.639247][ T1060] panic+0x2dc/0x755 [ 1140.643132][ T1060] ? add_taint.cold+0x16/0x16 [ 1140.647808][ T1060] ? lapic_can_unplug_cpu.cold+0x45/0x45 [ 1140.653435][ T1060] ? ___preempt_schedule+0x16/0x20 [ 1140.658546][ T1060] ? nmi_trigger_cpumask_backtrace+0x21b/0x28b [ 1140.664691][ T1060] ? nmi_trigger_cpumask_backtrace+0x24c/0x28b [ 1140.670845][ T1060] ? nmi_trigger_cpumask_backtrace+0x256/0x28b [ 1140.676993][ T1060] ? nmi_trigger_cpumask_backtrace+0x21b/0x28b [ 1140.683142][ T1060] watchdog+0xcaa/0x1360 [ 1140.687387][ T1060] kthread+0x361/0x430 [ 1140.691450][ T1060] ? reset_hung_task_detector+0x30/0x30 [ 1140.696992][ T1060] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 1140.703226][ T1060] ret_from_fork+0x24/0x30 [ 1140.709119][ T1060] Kernel Offset: disabled [ 1140.713473][ T1060] Rebooting in 86400 seconds..