[ 99.910510][ T27] audit: type=1400 audit(1577252619.722:37): avc: denied { watch } for pid=9909 comm="restorecond" path="/root/.ssh" dev="sda1" ino=16179 scontext=system_u:system_r:kernel_t:s0 tcontext=unconfined_u:object_r:ssh_home_t:s0 tclass=dir permissive=1 [ 99.935978][ T27] audit: type=1400 audit(1577252619.722:38): avc: denied { watch } for pid=9909 comm="restorecond" path="/etc/selinux/restorecond.conf" dev="sda1" ino=2232 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:object_r:file_t:s0 tclass=file permissive=1 [....] Starting file context maintaining daemon: restorecond[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. [ 100.223182][ T27] audit: type=1800 audit(1577252620.042:39): pid=9822 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:kernel_t:s0 op=collect_data cause=failed(directio) comm="startpar" name="rc.local" dev="sda1" ino=2432 res=0 [ 100.246211][ T27] audit: type=1800 audit(1577252620.042:40): pid=9822 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:kernel_t:s0 op=collect_data cause=failed(directio) comm="startpar" name="rmnologin" dev="sda1" ino=2423 res=0 Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 103.992350][ T27] audit: type=1400 audit(1577252623.812:41): avc: denied { map } for pid=9999 comm="bash" path="/bin/bash" dev="sda1" ino=1457 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=system_u:object_r:file_t:s0 tclass=file permissive=1 Warning: Permanently added '10.128.0.8' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program [ 815.496571][ T27] audit: type=1400 audit(1577253335.312:42): avc: denied { map } for pid=10011 comm="syz-executor013" path="/root/syz-executor013225163" 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 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 820.381274][T10019] xt_CT: netfilter: NOTRACK target is deprecated, use CT instead or upgrade iptables [ 820.381308][T10020] xt_CT: netfilter: NOTRACK target is deprecated, use CT instead or upgrade iptables [ 820.390926][T10018] xt_CT: netfilter: NOTRACK target is deprecated, use CT instead or upgrade iptables [ 974.818871][ T1114] INFO: task syz-executor013:10018 blocked for more than 143 seconds. [ 974.827192][ T1114] Not tainted 5.5.0-rc3-syzkaller #0 [ 974.833958][ T1114] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 974.842825][ T1114] syz-executor013 D27416 10018 10013 0x00004004 [ 974.849313][ T1114] Call Trace: [ 974.852711][ T1114] __schedule+0x934/0x1f90 [ 974.857140][ T1114] ? __sched_text_start+0x8/0x8 [ 974.862242][ T1114] ? __lock_acquire+0x29c9/0x4a00 [ 974.867281][ T1114] schedule+0xdc/0x2b0 [ 974.871517][ T1114] schedule_timeout+0x717/0xc50 [ 974.876440][ T1114] ? __kasan_check_read+0x11/0x20 [ 974.881679][ T1114] ? usleep_range+0x170/0x170 [ 974.886381][ T1114] ? mark_held_locks+0xa4/0xf0 [ 974.891365][ T1114] ? _raw_spin_unlock_irq+0x23/0x80 [ 974.896572][ T1114] ? wait_for_completion+0x294/0x440 [ 974.902082][ T1114] ? _raw_spin_unlock_irq+0x23/0x80 [ 974.907290][ T1114] ? lockdep_hardirqs_on+0x421/0x5e0 [ 974.912807][ T1114] ? trace_hardirqs_on+0x67/0x240 [ 974.917847][ T1114] wait_for_completion+0x29c/0x440 [ 974.923170][ T1114] ? wait_for_completion_interruptible+0x470/0x470 [ 974.929922][ T1114] ? wake_up_q+0x140/0x140 [ 974.934353][ T1114] ? lockdep_hardirqs_on+0x421/0x5e0 [ 974.939828][ T1114] ? __kasan_check_read+0x11/0x20 [ 974.944930][ T1114] __flush_work+0x4fe/0xa50 [ 974.949631][ T1114] ? mark_held_locks+0xf0/0xf0 [ 974.954425][ T1114] ? queue_delayed_work_on+0x210/0x210 [ 974.960130][ T1114] ? init_pwq+0x360/0x360 [ 974.964614][ T1114] ? __cancel_work_timer+0xc4/0x540 [ 974.970042][ T1114] ? __cancel_work_timer+0x1e0/0x540 [ 974.975347][ T1114] ? cancel_delayed_work_sync+0x1b/0x20 [ 974.981078][ T1114] ? __cancel_work_timer+0x1e0/0x540 [ 974.986394][ T1114] ? lockdep_hardirqs_on+0x421/0x5e0 [ 974.991874][ T1114] ? trace_hardirqs_on+0x67/0x240 [ 974.996908][ T1114] __cancel_work_timer+0x3d9/0x540 [ 975.002198][ T1114] ? mod_delayed_work_on+0x200/0x200 [ 975.007498][ T1114] ? kfree+0x226/0x2c0 [ 975.011818][ T1114] ? __vunmap+0x6c7/0x950 [ 975.016152][ T1114] ? kfree+0x226/0x2c0 [ 975.020408][ T1114] ? lockdep_hardirqs_on+0x421/0x5e0 [ 975.025702][ T1114] ? trace_hardirqs_on+0x67/0x240 [ 975.030897][ T1114] cancel_delayed_work_sync+0x1b/0x20 [ 975.036355][ T1114] htable_put+0x15f/0x220 [ 975.040898][ T1114] ? hashlimit_mt_destroy+0x70/0x70 [ 975.046106][ T1114] hashlimit_mt_destroy_v2+0x56/0x70 [ 975.051604][ T1114] cleanup_match+0xde/0x170 [ 975.056121][ T1114] ? icmp_checkentry+0xa0/0xa0 [ 975.061056][ T1114] ? vfree+0x64/0x90 [ 975.064963][ T1114] cleanup_entry+0xd7/0x270 [ 975.069625][ T1114] ? cleanup_match+0x170/0x170 [ 975.074394][ T1114] ? get_info+0x570/0x570 [ 975.078951][ T1114] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 975.085296][ T1114] ? _copy_from_user+0x12c/0x1a0 [ 975.090417][ T1114] do_ipt_set_ctl+0x3e4/0x4c2 [ 975.095106][ T1114] ? compat_do_ipt_set_ctl+0x170/0x170 [ 975.100753][ T1114] ? mutex_unlock+0xd/0x10 [ 975.105229][ T1114] ? nf_sockopt_find.constprop.0+0x226/0x290 [ 975.111378][ T1114] nf_setsockopt+0x77/0xd0 [ 975.115853][ T1114] ip_setsockopt+0xdf/0x100 [ 975.120579][ T1114] udp_setsockopt+0x68/0xb0 [ 975.125119][ T1114] sock_common_setsockopt+0x94/0xd0 [ 975.130515][ T1114] __sys_setsockopt+0x261/0x4c0 [ 975.135379][ T1114] ? sock_create_kern+0x50/0x50 [ 975.140430][ T1114] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 975.145986][ T1114] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 975.152398][ T1114] ? handle_mm_fault+0x4ab/0xa50 [ 975.157367][ T1114] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 975.163000][ T1114] ? do_syscall_64+0x26/0x790 [ 975.167682][ T1114] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 975.173905][ T1114] ? do_syscall_64+0x26/0x790 [ 975.178589][ T1114] __x64_sys_setsockopt+0xbe/0x150 [ 975.183861][ T1114] do_syscall_64+0xfa/0x790 [ 975.188372][ T1114] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 975.194413][ T1114] RIP: 0033:0x4412b9 [ 975.198312][ T1114] Code: 0a 72 65 73 6f 72 74 2c 20 79 6f 75 20 6d 61 79 20 77 61 6e 74 20 74 6f 20 72 65 6d 6f 76 65 20 24 41 62 6f 72 74 4f 6e 55 6e <63> 6c 65 61 6e 43 6f 6e 66 69 67 20 74 6f 20 70 65 72 6d 69 74 20 [ 975.218168][ T1114] RSP: 002b:00007ffc9723f3f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 [ 975.226912][ T1114] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00000000004412b9 [ 975.235091][ T1114] RDX: 0000000000000040 RSI: 0000000000000000 RDI: 0000000000000005 [ 975.243232][ T1114] RBP: 00000000006cc018 R08: 0000000000000001 R09: 00000000004002c8 [ 975.251373][ T1114] R10: 0000000020000500 R11: 0000000000000246 R12: 0000000000402030 [ 975.259519][ T1114] R13: 00000000004020c0 R14: 0000000000000000 R15: 0000000000000000 [ 975.267515][ T1114] INFO: task syz-executor013:10029 blocked for more than 143 seconds. [ 975.275899][ T1114] Not tainted 5.5.0-rc3-syzkaller #0 [ 975.281868][ T1114] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 975.290694][ T1114] syz-executor013 D28160 10029 10017 0x00000004 [ 975.297054][ T1114] Call Trace: [ 975.300511][ T1114] __schedule+0x934/0x1f90 [ 975.304939][ T1114] ? __sched_text_start+0x8/0x8 [ 975.309942][ T1114] ? lock_downgrade+0x920/0x920 [ 975.314797][ T1114] ? rwlock_bug.part.0+0x90/0x90 [ 975.319905][ T1114] schedule+0xdc/0x2b0 [ 975.323981][ T1114] schedule_preempt_disabled+0x13/0x20 [ 975.329589][ T1114] __mutex_lock+0x7ab/0x13c0 [ 975.334191][ T1114] ? hashlimit_mt_check_common.isra.0+0x341/0x1500 [ 975.341723][ T1114] ? mutex_trylock+0x2d0/0x2d0 [ 975.346502][ T1114] ? mark_held_locks+0xf0/0xf0 [ 975.351430][ T1114] mutex_lock_nested+0x16/0x20 [ 975.356195][ T1114] ? mutex_lock_nested+0x16/0x20 [ 975.361288][ T1114] hashlimit_mt_check_common.isra.0+0x341/0x1500 [ 975.367624][ T1114] hashlimit_mt_check_v2+0x327/0x3b0 [ 975.373062][ T1114] ? __mutex_lock+0x458/0x13c0 [ 975.377834][ T1114] ? hashlimit_mt_check+0xd0/0xd0 [ 975.383005][ T1114] ? lock_downgrade+0x920/0x920 [ 975.387873][ T1114] ? mutex_trylock+0x2d0/0x2d0 [ 975.392801][ T1114] ? hashlimit_mt_check+0xd0/0xd0 [ 975.397893][ T1114] xt_check_match+0x280/0x690 [ 975.402740][ T1114] ? xt_check_target+0x690/0x690 [ 975.407689][ T1114] ? mutex_unlock+0xd/0x10 [ 975.412261][ T1114] ? xt_find_match+0x73/0x280 [ 975.416947][ T1114] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 975.423355][ T1114] find_check_entry.isra.0+0x32f/0x920 [ 975.428962][ T1114] ? ipt_do_table+0x1b80/0x1b80 [ 975.433825][ T1114] ? lockdep_hardirqs_on+0x421/0x5e0 [ 975.439264][ T1114] ? trace_hardirqs_on+0x67/0x240 [ 975.444360][ T1114] ? kvfree+0x61/0x70 [ 975.448364][ T1114] translate_table+0xcb4/0x17d0 [ 975.453468][ T1114] ? compat_do_ipt_get_ctl+0x910/0x910 [ 975.459100][ T1114] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 975.465352][ T1114] ? _copy_from_user+0x12c/0x1a0 [ 975.470465][ T1114] do_ipt_set_ctl+0x2fe/0x4c2 [ 975.475148][ T1114] ? compat_do_ipt_set_ctl+0x170/0x170 [ 975.480784][ T1114] ? mutex_unlock+0xd/0x10 [ 975.485205][ T1114] ? nf_sockopt_find.constprop.0+0x226/0x290 [ 975.491354][ T1114] nf_setsockopt+0x77/0xd0 [ 975.495781][ T1114] ip_setsockopt+0xdf/0x100 [ 975.500450][ T1114] udp_setsockopt+0x68/0xb0 [ 975.504984][ T1114] sock_common_setsockopt+0x94/0xd0 [ 975.510372][ T1114] __sys_setsockopt+0x261/0x4c0 [ 975.515255][ T1114] ? sock_create_kern+0x50/0x50 [ 975.520366][ T1114] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 975.526051][ T1114] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 975.532549][ T1114] ? handle_mm_fault+0x4ab/0xa50 [ 975.537510][ T1114] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 975.543232][ T1114] ? do_syscall_64+0x26/0x790 [ 975.547919][ T1114] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 975.554165][ T1114] ? do_syscall_64+0x26/0x790 [ 975.559023][ T1114] __x64_sys_setsockopt+0xbe/0x150 [ 975.564160][ T1114] do_syscall_64+0xfa/0x790 [ 975.568875][ T1114] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 975.575306][ T1114] RIP: 0033:0x4412b9 [ 975.579428][ T1114] Code: 0a 72 65 73 6f 72 74 2c 20 79 6f 75 20 6d 61 79 20 77 61 6e 74 20 74 6f 20 72 65 6d 6f 76 65 20 24 41 62 6f 72 74 4f 6e 55 6e <63> 6c 65 61 6e 43 6f 6e 66 69 67 20 74 6f 20 70 65 72 6d 69 74 20 [ 975.599382][ T1114] RSP: 002b:00007ffc9723f3f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 [ 975.607812][ T1114] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00000000004412b9 [ 975.615985][ T1114] RDX: 0000000000000040 RSI: 0000000000000000 RDI: 0000000000000005 [ 975.624527][ T1114] RBP: 00000000000c7176 R08: 0000000000000001 R09: 00000000004002c8 [ 975.632719][ T1114] R10: 0000000020000500 R11: 0000000000000246 R12: 0000000000402030 [ 975.640955][ T1114] R13: 00000000004020c0 R14: 0000000000000000 R15: 0000000000000000 [ 975.649148][ T1114] INFO: task syz-executor013:10030 blocked for more than 144 seconds. [ 975.657296][ T1114] Not tainted 5.5.0-rc3-syzkaller #0 [ 975.663274][ T1114] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 975.672096][ T1114] syz-executor013 D28160 10030 10014 0x00000004 [ 975.678435][ T1114] Call Trace: [ 975.681900][ T1114] __schedule+0x934/0x1f90 [ 975.686338][ T1114] ? __sched_text_start+0x8/0x8 [ 975.691355][ T1114] ? lock_downgrade+0x920/0x920 [ 975.696211][ T1114] ? rwlock_bug.part.0+0x90/0x90 [ 975.701326][ T1114] schedule+0xdc/0x2b0 [ 975.705404][ T1114] schedule_preempt_disabled+0x13/0x20 [ 975.711028][ T1114] __mutex_lock+0x7ab/0x13c0 [ 975.715631][ T1114] ? hashlimit_mt_check_common.isra.0+0x341/0x1500 [ 975.722322][ T1114] ? mutex_trylock+0x2d0/0x2d0 [ 975.727089][ T1114] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 975.733040][ T1114] ? pcpu_next_md_free_region+0x176/0x350 [ 975.738930][ T1114] ? mark_held_locks+0xf0/0xf0 [ 975.743707][ T1114] mutex_lock_nested+0x16/0x20 [ 975.748466][ T1114] ? mutex_lock_nested+0x16/0x20 [ 975.753637][ T1114] hashlimit_mt_check_common.isra.0+0x341/0x1500 [ 975.760125][ T1114] hashlimit_mt_check_v2+0x327/0x3b0 [ 975.765412][ T1114] ? __mutex_lock+0x458/0x13c0 [ 975.770332][ T1114] ? hashlimit_mt_check+0xd0/0xd0 [ 975.775364][ T1114] ? lock_downgrade+0x920/0x920 [ 975.780386][ T1114] ? mutex_trylock+0x2d0/0x2d0 [ 975.785180][ T1114] ? hashlimit_mt_check+0xd0/0xd0 [ 975.790366][ T1114] xt_check_match+0x280/0x690 [ 975.795050][ T1114] ? xt_check_target+0x690/0x690 [ 975.800157][ T1114] ? mutex_unlock+0xd/0x10 [ 975.804577][ T1114] ? xt_find_match+0x73/0x280 [ 975.809414][ T1114] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 975.815663][ T1114] find_check_entry.isra.0+0x32f/0x920 [ 975.821388][ T1114] ? ipt_do_table+0x1b80/0x1b80 [ 975.826249][ T1114] ? lockdep_hardirqs_on+0x421/0x5e0 [ 975.831696][ T1114] ? trace_hardirqs_on+0x67/0x240 [ 975.836726][ T1114] ? kvfree+0x61/0x70 [ 975.841042][ T1114] translate_table+0xcb4/0x17d0 [ 975.845912][ T1114] ? compat_do_ipt_get_ctl+0x910/0x910 [ 975.851681][ T1114] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 975.857924][ T1114] ? _copy_from_user+0x12c/0x1a0 [ 975.863180][ T1114] do_ipt_set_ctl+0x2fe/0x4c2 [ 975.867861][ T1114] ? compat_do_ipt_set_ctl+0x170/0x170 [ 975.873622][ T1114] ? mutex_unlock+0xd/0x10 [ 975.878043][ T1114] ? nf_sockopt_find.constprop.0+0x226/0x290 [ 975.884330][ T1114] nf_setsockopt+0x77/0xd0 [ 975.889116][ T1114] ip_setsockopt+0xdf/0x100 [ 975.893626][ T1114] udp_setsockopt+0x68/0xb0 [ 975.898130][ T1114] sock_common_setsockopt+0x94/0xd0 [ 975.903672][ T1114] __sys_setsockopt+0x261/0x4c0 [ 975.908535][ T1114] ? sock_create_kern+0x50/0x50 [ 975.913695][ T1114] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 975.919555][ T1114] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 975.925798][ T1114] ? handle_mm_fault+0x4ab/0xa50 [ 975.931045][ T1114] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 975.936680][ T1114] ? do_syscall_64+0x26/0x790 [ 975.941750][ T1114] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 975.947838][ T1114] ? do_syscall_64+0x26/0x790 [ 975.953018][ T1114] __x64_sys_setsockopt+0xbe/0x150 [ 975.958267][ T1114] do_syscall_64+0xfa/0x790 [ 975.963215][ T1114] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 975.969499][ T1114] RIP: 0033:0x4412b9 [ 975.973403][ T1114] Code: 0a 72 65 73 6f 72 74 2c 20 79 6f 75 20 6d 61 79 20 77 61 6e 74 20 74 6f 20 72 65 6d 6f 76 65 20 24 41 62 6f 72 74 4f 6e 55 6e <63> 6c 65 61 6e 43 6f 6e 66 69 67 20 74 6f 20 70 65 72 6d 69 74 20 [ 975.993380][ T1114] RSP: 002b:00007ffc9723f3f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 [ 976.002119][ T1114] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00000000004412b9 [ 976.010383][ T1114] RDX: 0000000000000040 RSI: 0000000000000000 RDI: 0000000000000005 [ 976.018354][ T1114] RBP: 00000000000c84a6 R08: 0000000000000001 R09: 00000000004002c8 [ 976.027708][ T1114] R10: 0000000020000500 R11: 0000000000000246 R12: 0000000000402030 [ 976.036174][ T1114] R13: 00000000004020c0 R14: 0000000000000000 R15: 0000000000000000 [ 976.044549][ T1114] INFO: task syz-executor013:10031 blocked for more than 144 seconds. [ 976.052977][ T1114] Not tainted 5.5.0-rc3-syzkaller #0 [ 976.059050][ T1114] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 976.067717][ T1114] syz-executor013 D28160 10031 10015 0x00004004 [ 976.074394][ T1114] Call Trace: [ 976.077701][ T1114] __schedule+0x934/0x1f90 [ 976.082432][ T1114] ? __sched_text_start+0x8/0x8 [ 976.087287][ T1114] ? lock_downgrade+0x920/0x920 [ 976.092459][ T1114] ? rwlock_bug.part.0+0x90/0x90 [ 976.097412][ T1114] schedule+0xdc/0x2b0 [ 976.101787][ T1114] schedule_preempt_disabled+0x13/0x20 [ 976.107246][ T1114] __mutex_lock+0x7ab/0x13c0 [ 976.112143][ T1114] ? hashlimit_mt_check_common.isra.0+0x341/0x1500 [ 976.118648][ T1114] ? mutex_trylock+0x2d0/0x2d0 [ 976.123727][ T1114] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 976.130689][ T1114] ? pcpu_next_md_free_region+0x176/0x350 [ 976.136421][ T1114] ? mark_held_locks+0xf0/0xf0 [ 976.141500][ T1114] mutex_lock_nested+0x16/0x20 [ 976.146265][ T1114] ? mutex_lock_nested+0x16/0x20 [ 976.151597][ T1114] hashlimit_mt_check_common.isra.0+0x341/0x1500 [ 976.157940][ T1114] hashlimit_mt_check_v2+0x327/0x3b0 [ 976.163530][ T1114] ? __mutex_lock+0x458/0x13c0 [ 976.168300][ T1114] ? hashlimit_mt_check+0xd0/0xd0 [ 976.173637][ T1114] ? lock_downgrade+0x920/0x920 [ 976.178495][ T1114] ? mutex_trylock+0x2d0/0x2d0 [ 976.183571][ T1114] ? hashlimit_mt_check+0xd0/0xd0 [ 976.188607][ T1114] xt_check_match+0x280/0x690 [ 976.193683][ T1114] ? xt_check_target+0x690/0x690 [ 976.198632][ T1114] ? mutex_unlock+0xd/0x10 [ 976.203721][ T1114] ? xt_find_match+0x73/0x280 [ 976.208418][ T1114] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 976.215003][ T1114] find_check_entry.isra.0+0x32f/0x920 [ 976.220779][ T1114] ? ipt_do_table+0x1b80/0x1b80 [ 976.225642][ T1114] ? lockdep_hardirqs_on+0x421/0x5e0 [ 976.231249][ T1114] ? trace_hardirqs_on+0x67/0x240 [ 976.236393][ T1114] ? kvfree+0x61/0x70 [ 976.240693][ T1114] translate_table+0xcb4/0x17d0 [ 976.245575][ T1114] ? compat_do_ipt_get_ctl+0x910/0x910 [ 976.251419][ T1114] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 976.257672][ T1114] ? _copy_from_user+0x12c/0x1a0 [ 976.262930][ T1114] do_ipt_set_ctl+0x2fe/0x4c2 [ 976.267618][ T1114] ? compat_do_ipt_set_ctl+0x170/0x170 [ 976.273395][ T1114] ? mutex_unlock+0xd/0x10 [ 976.277816][ T1114] ? nf_sockopt_find.constprop.0+0x226/0x290 [ 976.284204][ T1114] nf_setsockopt+0x77/0xd0 [ 976.288636][ T1114] ip_setsockopt+0xdf/0x100 [ 976.293485][ T1114] udp_setsockopt+0x68/0xb0 [ 976.298029][ T1114] sock_common_setsockopt+0x94/0xd0 [ 976.303643][ T1114] __sys_setsockopt+0x261/0x4c0 [ 976.308510][ T1114] ? sock_create_kern+0x50/0x50 [ 976.313708][ T1114] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 976.319603][ T1114] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 976.325863][ T1114] ? handle_mm_fault+0x4ab/0xa50 [ 976.331207][ T1114] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 976.336678][ T1114] ? do_syscall_64+0x26/0x790 [ 976.341716][ T1114] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 976.347788][ T1114] ? do_syscall_64+0x26/0x790 [ 976.352801][ T1114] __x64_sys_setsockopt+0xbe/0x150 [ 976.357922][ T1114] do_syscall_64+0xfa/0x790 [ 976.362769][ T1114] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 976.368684][ T1114] RIP: 0033:0x4412b9 [ 976.372884][ T1114] Code: 0a 72 65 73 6f 72 74 2c 20 79 6f 75 20 6d 61 79 20 77 61 6e 74 20 74 6f 20 72 65 6d 6f 76 65 20 24 41 62 6f 72 74 4f 6e 55 6e <63> 6c 65 61 6e 43 6f 6e 66 69 67 20 74 6f 20 70 65 72 6d 69 74 20 [ 976.393015][ T1114] RSP: 002b:00007ffc9723f3f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 [ 976.401754][ T1114] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00000000004412b9 [ 976.410033][ T1114] RDX: 0000000000000040 RSI: 0000000000000000 RDI: 0000000000000005 [ 976.418005][ T1114] RBP: 00000000000c84a6 R08: 0000000000000001 R09: 00000000004002c8 [ 976.426319][ T1114] R10: 0000000020000500 R11: 0000000000000246 R12: 0000000000402030 [ 976.434609][ T1114] R13: 00000000004020c0 R14: 0000000000000000 R15: 0000000000000000 [ 976.442971][ T1114] INFO: task syz-executor013:10032 blocked for more than 144 seconds. [ 976.451456][ T1114] Not tainted 5.5.0-rc3-syzkaller #0 [ 976.457263][ T1114] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 976.466233][ T1114] syz-executor013 D28160 10032 10012 0x00000004 [ 976.472898][ T1114] Call Trace: [ 976.476225][ T1114] __schedule+0x934/0x1f90 [ 976.480948][ T1114] ? __sched_text_start+0x8/0x8 [ 976.485798][ T1114] ? lock_downgrade+0x920/0x920 [ 976.490961][ T1114] ? rwlock_bug.part.0+0x90/0x90 [ 976.495910][ T1114] schedule+0xdc/0x2b0 [ 976.500272][ T1114] schedule_preempt_disabled+0x13/0x20 [ 976.505730][ T1114] __mutex_lock+0x7ab/0x13c0 [ 976.510649][ T1114] ? hashlimit_mt_check_common.isra.0+0x341/0x1500 [ 976.517173][ T1114] ? mutex_trylock+0x2d0/0x2d0 [ 976.522338][ T1114] ? mark_held_locks+0xf0/0xf0 [ 976.527111][ T1114] mutex_lock_nested+0x16/0x20 [ 976.532204][ T1114] ? mutex_lock_nested+0x16/0x20 [ 976.537146][ T1114] hashlimit_mt_check_common.isra.0+0x341/0x1500 [ 976.543789][ T1114] hashlimit_mt_check_v2+0x327/0x3b0 [ 976.549359][ T1114] ? __mutex_lock+0x458/0x13c0 [ 976.554130][ T1114] ? hashlimit_mt_check+0xd0/0xd0 [ 976.559496][ T1114] ? lock_downgrade+0x920/0x920 [ 976.564360][ T1114] ? mutex_trylock+0x2d0/0x2d0 [ 976.569444][ T1114] ? hashlimit_mt_check+0xd0/0xd0 [ 976.574473][ T1114] xt_check_match+0x280/0x690 [ 976.579508][ T1114] ? xt_check_target+0x690/0x690 [ 976.584455][ T1114] ? mutex_unlock+0xd/0x10 [ 976.589181][ T1114] ? xt_find_match+0x73/0x280 [ 976.593885][ T1114] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 976.600530][ T1114] find_check_entry.isra.0+0x32f/0x920 [ 976.606023][ T1114] ? ipt_do_table+0x1b80/0x1b80 [ 976.611306][ T1114] ? lockdep_hardirqs_on+0x421/0x5e0 [ 976.616601][ T1114] ? trace_hardirqs_on+0x67/0x240 [ 976.621950][ T1114] ? kvfree+0x61/0x70 [ 976.625948][ T1114] translate_table+0xcb4/0x17d0 [ 976.631164][ T1114] ? compat_do_ipt_get_ctl+0x910/0x910 [ 976.636638][ T1114] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 976.643285][ T1114] ? _copy_from_user+0x12c/0x1a0 [ 976.648326][ T1114] do_ipt_set_ctl+0x2fe/0x4c2 [ 976.653360][ T1114] ? compat_do_ipt_set_ctl+0x170/0x170 [ 976.659345][ T1114] ? mutex_unlock+0xd/0x10 [ 976.663783][ T1114] ? nf_sockopt_find.constprop.0+0x226/0x290 [ 976.670224][ T1114] nf_setsockopt+0x77/0xd0 [ 976.674670][ T1114] ip_setsockopt+0xdf/0x100 [ 976.679563][ T1114] udp_setsockopt+0x68/0xb0 [ 976.684188][ T1114] sock_common_setsockopt+0x94/0xd0 [ 976.689840][ T1114] __sys_setsockopt+0x261/0x4c0 [ 976.694718][ T1114] ? sock_create_kern+0x50/0x50 [ 976.699894][ T1114] ? down_read_non_owner+0x490/0x490 [ 976.705184][ T1114] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 976.711740][ T1114] ? handle_mm_fault+0x4ab/0xa50 [ 976.716686][ T1114] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 976.722465][ T1114] ? do_syscall_64+0x26/0x790 [ 976.727145][ T1114] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 976.733542][ T1114] ? do_syscall_64+0x26/0x790 [ 976.738232][ T1114] __x64_sys_setsockopt+0xbe/0x150 [ 976.743772][ T1114] do_syscall_64+0xfa/0x790 [ 976.748297][ T1114] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 976.754504][ T1114] RIP: 0033:0x4412b9 [ 976.758404][ T1114] Code: 0a 72 65 73 6f 72 74 2c 20 79 6f 75 20 6d 61 79 20 77 61 6e 74 20 74 6f 20 72 65 6d 6f 76 65 20 24 41 62 6f 72 74 4f 6e 55 6e <63> 6c 65 61 6e 43 6f 6e 66 69 67 20 74 6f 20 70 65 72 6d 69 74 20 [ 976.778439][ T1114] RSP: 002b:00007ffc9723f3f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 [ 976.787159][ T1114] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00000000004412b9 [ 976.795444][ T1114] RDX: 0000000000000040 RSI: 0000000000000000 RDI: 0000000000000005 [ 976.803714][ T1114] RBP: 00000000000c84a7 R08: 0000000000000001 R09: 00000000004002c8 [ 976.811978][ T1114] R10: 0000000020000500 R11: 0000000000000246 R12: 0000000000402030 [ 976.820262][ T1114] R13: 00000000004020c0 R14: 0000000000000000 R15: 0000000000000000 [ 976.828259][ T1114] INFO: task syz-executor013:10033 blocked for more than 145 seconds. [ 976.836723][ T1114] Not tainted 5.5.0-rc3-syzkaller #0 [ 976.843534][ T1114] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 976.852465][ T1114] syz-executor013 D28160 10033 10016 0x00004004 [ 976.859086][ T1114] Call Trace: [ 976.862387][ T1114] __schedule+0x934/0x1f90 [ 976.866808][ T1114] ? __sched_text_start+0x8/0x8 [ 976.872106][ T1114] ? lock_downgrade+0x920/0x920 [ 976.876964][ T1114] ? rwlock_bug.part.0+0x90/0x90 [ 976.882216][ T1114] schedule+0xdc/0x2b0 [ 976.886292][ T1114] schedule_preempt_disabled+0x13/0x20 [ 976.892056][ T1114] __mutex_lock+0x7ab/0x13c0 [ 976.896657][ T1114] ? hashlimit_mt_check_common.isra.0+0x341/0x1500 [ 976.903551][ T1114] ? mutex_trylock+0x2d0/0x2d0 [ 976.908321][ T1114] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 976.914353][ T1114] ? pcpu_next_md_free_region+0x176/0x350 [ 976.920371][ T1114] ? mark_held_locks+0xf0/0xf0 [ 976.925144][ T1114] mutex_lock_nested+0x16/0x20 [ 976.930213][ T1114] ? mutex_lock_nested+0x16/0x20 [ 976.935174][ T1114] hashlimit_mt_check_common.isra.0+0x341/0x1500 [ 976.941931][ T1114] hashlimit_mt_check_v2+0x327/0x3b0 [ 976.947219][ T1114] ? __mutex_lock+0x458/0x13c0 [ 976.952287][ T1114] ? hashlimit_mt_check+0xd0/0xd0 [ 976.957315][ T1114] ? lock_downgrade+0x920/0x920 [ 976.962464][ T1114] ? mutex_trylock+0x2d0/0x2d0 [ 976.967240][ T1114] ? hashlimit_mt_check+0xd0/0xd0 [ 976.972610][ T1114] xt_check_match+0x280/0x690 [ 976.977299][ T1114] ? xt_check_target+0x690/0x690 [ 976.982621][ T1114] ? mutex_unlock+0xd/0x10 [ 976.987041][ T1114] ? xt_find_match+0x73/0x280 [ 976.992039][ T1114] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 976.998292][ T1114] find_check_entry.isra.0+0x32f/0x920 [ 977.004104][ T1114] ? ipt_do_table+0x1b80/0x1b80 [ 977.009246][ T1114] ? lockdep_hardirqs_on+0x421/0x5e0 [ 977.014539][ T1114] ? trace_hardirqs_on+0x67/0x240 [ 977.020007][ T1114] ? kvfree+0x61/0x70 [ 977.024017][ T1114] translate_table+0xcb4/0x17d0 [ 977.029369][ T1114] ? compat_do_ipt_get_ctl+0x910/0x910 [ 977.034882][ T1114] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 977.041632][ T1114] ? _copy_from_user+0x12c/0x1a0 [ 977.046586][ T1114] do_ipt_set_ctl+0x2fe/0x4c2 [ 977.051613][ T1114] ? compat_do_ipt_set_ctl+0x170/0x170 [ 977.057091][ T1114] ? mutex_unlock+0xd/0x10 [ 977.061812][ T1114] ? nf_sockopt_find.constprop.0+0x226/0x290 [ 977.067798][ T1114] nf_setsockopt+0x77/0xd0 [ 977.072546][ T1114] ip_setsockopt+0xdf/0x100 [ 977.077058][ T1114] udp_setsockopt+0x68/0xb0 [ 977.081849][ T1114] sock_common_setsockopt+0x94/0xd0 [ 977.087053][ T1114] __sys_setsockopt+0x261/0x4c0 [ 977.092303][ T1114] ? sock_create_kern+0x50/0x50 [ 977.097158][ T1114] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 977.103181][ T1114] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 977.109856][ T1114] ? handle_mm_fault+0x4ab/0xa50 [ 977.114811][ T1114] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 977.120656][ T1114] ? do_syscall_64+0x26/0x790 [ 977.125347][ T1114] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 977.131754][ T1114] ? do_syscall_64+0x26/0x790 [ 977.136532][ T1114] __x64_sys_setsockopt+0xbe/0x150 [ 977.142037][ T1114] do_syscall_64+0xfa/0x790 [ 977.146551][ T1114] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 977.153018][ T1114] RIP: 0033:0x4412b9 [ 977.156920][ T1114] Code: 0a 72 65 73 6f 72 74 2c 20 79 6f 75 20 6d 61 79 20 77 61 6e 74 20 74 6f 20 72 65 6d 6f 76 65 20 24 41 62 6f 72 74 4f 6e 55 6e <63> 6c 65 61 6e 43 6f 6e 66 69 67 20 74 6f 20 70 65 72 6d 69 74 20 [ 977.176933][ T1114] RSP: 002b:00007ffc9723f3f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 [ 977.185649][ T1114] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00000000004412b9 [ 977.194094][ T1114] RDX: 0000000000000040 RSI: 0000000000000000 RDI: 0000000000000005 [ 977.202378][ T1114] RBP: 00000000000c84a2 R08: 0000000000000001 R09: 00000000004002c8 [ 977.210641][ T1114] R10: 0000000020000500 R11: 0000000000000246 R12: 0000000000402030 [ 977.218616][ T1114] R13: 00000000004020c0 R14: 0000000000000000 R15: 0000000000000000 [ 977.226954][ T1114] [ 977.226954][ T1114] Showing all locks held in the system: [ 977.235008][ T1114] 1 lock held by khungtaskd/1114: [ 977.240333][ T1114] #0: ffffffff899a5680 (rcu_read_lock){....}, at: debug_show_all_locks+0x5f/0x279 [ 977.249958][ T1114] 3 locks held by kworker/0:92/3036: [ 977.255257][ T1114] 1 lock held by rsyslogd/9860: [ 977.260420][ T1114] #0: ffff888095c665e0 (&f->f_pos_lock){+.+.}, at: __fdget_pos+0xee/0x110 [ 977.269371][ T1114] 2 locks held by getty/9982: [ 977.274050][ T1114] #0: ffff88809875e090 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 [ 977.283441][ T1114] #1: ffffc900017cb2e0 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x220/0x1bf0 [ 977.293511][ T1114] 2 locks held by getty/9983: [ 977.298185][ T1114] #0: ffff8880864d9090 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 [ 977.307473][ T1114] #1: ffffc900017db2e0 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x220/0x1bf0 [ 977.317344][ T1114] 2 locks held by getty/9984: [ 977.322405][ T1114] #0: ffff8880a8c78090 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 [ 977.331651][ T1114] #1: ffffc9000185b2e0 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x220/0x1bf0 [ 977.341524][ T1114] 2 locks held by getty/9985: [ 977.346192][ T1114] #0: ffff888096bdd090 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 [ 977.355457][ T1114] #1: ffffc9000184b2e0 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x220/0x1bf0 [ 977.365303][ T1114] 2 locks held by getty/9986: [ 977.370249][ T1114] #0: ffff888097e13090 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 [ 977.379526][ T1114] #1: ffffc9000183b2e0 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x220/0x1bf0 [ 977.389389][ T1114] 2 locks held by getty/9987: [ 977.394061][ T1114] #0: ffff888082318090 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 [ 977.403419][ T1114] #1: ffffc900017fb2e0 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x220/0x1bf0 [ 977.413398][ T1114] 2 locks held by getty/9988: [ 977.418073][ T1114] #0: ffff88821526f090 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 [ 977.427577][ T1114] #1: ffffc900011202e0 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x220/0x1bf0 [ 977.437600][ T1114] 1 lock held by syz-executor013/10018: [ 977.443462][ T1114] #0: ffffffff8a5393e0 (hashlimit_mutex){+.+.}, at: htable_put+0x21/0x220 [ 977.452613][ T1114] 1 lock held by syz-executor013/10029: [ 977.458161][ T1114] #0: ffffffff8a5393e0 (hashlimit_mutex){+.+.}, at: hashlimit_mt_check_common.isra.0+0x341/0x1500 [ 977.469320][ T1114] 1 lock held by syz-executor013/10030: [ 977.474866][ T1114] #0: ffffffff8a5393e0 (hashlimit_mutex){+.+.}, at: hashlimit_mt_check_common.isra.0+0x341/0x1500 [ 977.485924][ T1114] 1 lock held by syz-executor013/10031: [ 977.491760][ T1114] #0: ffffffff8a5393e0 (hashlimit_mutex){+.+.}, at: hashlimit_mt_check_common.isra.0+0x341/0x1500 [ 977.502762][ T1114] 1 lock held by syz-executor013/10032: [ 977.508309][ T1114] #0: ffffffff8a5393e0 (hashlimit_mutex){+.+.}, at: hashlimit_mt_check_common.isra.0+0x341/0x1500 [ 977.519495][ T1114] 1 lock held by syz-executor013/10033: [ 977.525038][ T1114] #0: ffffffff8a5393e0 (hashlimit_mutex){+.+.}, at: hashlimit_mt_check_common.isra.0+0x341/0x1500 [ 977.536081][ T1114] [ 977.538411][ T1114] ============================================= [ 977.538411][ T1114] [ 977.547168][ T1114] NMI backtrace for cpu 1 [ 977.551547][ T1114] CPU: 1 PID: 1114 Comm: khungtaskd Not tainted 5.5.0-rc3-syzkaller #0 [ 977.559780][ T1114] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 977.569830][ T1114] Call Trace: [ 977.573208][ T1114] dump_stack+0x197/0x210 [ 977.577543][ T1114] nmi_cpu_backtrace.cold+0x70/0xb2 [ 977.582775][ T1114] ? vprintk_func+0x86/0x189 [ 977.587411][ T1114] ? lapic_can_unplug_cpu.cold+0x3a/0x3a [ 977.593045][ T1114] nmi_trigger_cpumask_backtrace+0x23b/0x28b [ 977.599049][ T1114] arch_trigger_cpumask_backtrace+0x14/0x20 [ 977.604947][ T1114] watchdog+0xb11/0x10c0 [ 977.609197][ T1114] kthread+0x361/0x430 [ 977.613266][ T1114] ? reset_hung_task_detector+0x30/0x30 [ 977.618811][ T1114] ? kthread_mod_delayed_work+0x1f0/0x1f0 [ 977.624548][ T1114] ret_from_fork+0x24/0x30 [ 977.629106][ T1114] Sending NMI from CPU 1 to CPUs 0: [ 977.634706][ C0] NMI backtrace for cpu 0 [ 977.634712][ C0] CPU: 0 PID: 3036 Comm: kworker/0:92 Not tainted 5.5.0-rc3-syzkaller #0 [ 977.634718][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 977.634722][ C0] Workqueue: events_power_efficient htable_gc [ 977.634729][ C0] RIP: 0010:__lock_acquire+0x1bc/0x4a00 [ 977.634740][ C0] Code: 2f 0f 87 bf 18 00 00 49 8d bb 98 08 00 00 49 81 ec 80 e1 2c 8b 48 b8 a3 8b 2e ba e8 a2 8b 2e 49 c1 fc 04 48 89 bd 60 ff ff ff <4c> 0f af e0 8b 85 70 ff ff ff 4c 8d 14 80 49 c1 e2 03 85 c0 74 46 [ 977.634744][ C0] RSP: 0018:ffffc9000853fae8 EFLAGS: 00000006 [ 977.634752][ C0] RAX: 2e8ba2e8ba2e8ba3 RBX: 0000000000000000 RCX: 0000000000000000 [ 977.634757][ C0] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff88809e498dd8 [ 977.634762][ C0] RBP: ffffc9000853fc00 R08: 0000000000000001 R09: 0000000000000001 [ 977.634767][ C0] R10: fffffbfff14f3320 R11: ffff88809e498540 R12: 0000000000003d72 [ 977.634771][ C0] R13: 0000000000000000 R14: ffffc9000d431060 R15: 0000000000000000 [ 977.634777][ C0] FS: 0000000000000000(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 [ 977.634781][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 977.634786][ C0] CR2: 0000000020000500 CR3: 000000009624d000 CR4: 00000000001406f0 [ 977.634791][ C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 977.634796][ C0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 977.634799][ C0] Call Trace: [ 977.634802][ C0] ? __this_cpu_preempt_check+0x35/0x190 [ 977.634806][ C0] ? retint_kernel+0x2b/0x2b [ 977.634809][ C0] ? htable_selective_cleanup+0x219/0x330 [ 977.634813][ C0] ? __kasan_check_read+0x11/0x20 [ 977.634816][ C0] ? mark_held_locks+0xf0/0xf0 [ 977.634819][ C0] ? mark_held_locks+0xa4/0xf0 [ 977.634822][ C0] lock_acquire+0x190/0x410 [ 977.634826][ C0] ? htable_selective_cleanup+0xa6/0x330 [ 977.634829][ C0] _raw_spin_lock_bh+0x33/0x50 [ 977.634833][ C0] ? htable_selective_cleanup+0xa6/0x330 [ 977.634837][ C0] htable_selective_cleanup+0xa6/0x330 [ 977.634841][ C0] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 977.634844][ C0] ? select_all+0x10/0x10 [ 977.634847][ C0] htable_gc+0x26/0xc0 [ 977.634850][ C0] process_one_work+0x9af/0x1740 [ 977.634854][ C0] ? pwq_dec_nr_in_flight+0x320/0x320 [ 977.634857][ C0] ? lock_acquire+0x190/0x410 [ 977.634860][ C0] worker_thread+0x98/0xe40 [ 977.634863][ C0] kthread+0x361/0x430 [ 977.634867][ C0] ? process_one_work+0x1740/0x1740 [ 977.634870][ C0] ? kthread_mod_delayed_work+0x1f0/0x1f0 [ 977.634874][ C0] ret_from_fork+0x24/0x30 [ 977.643367][ T1114] Kernel panic - not syncing: hung_task: blocked tasks [ 977.894110][ T1114] CPU: 1 PID: 1114 Comm: khungtaskd Not tainted 5.5.0-rc3-syzkaller #0 [ 977.902348][ T1114] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 977.912455][ T1114] Call Trace: [ 977.915768][ T1114] dump_stack+0x197/0x210 [ 977.920178][ T1114] panic+0x2e3/0x75c [ 977.924080][ T1114] ? add_taint.cold+0x16/0x16 [ 977.928758][ T1114] ? lapic_can_unplug_cpu.cold+0x3a/0x3a [ 977.934402][ T1114] ? ___preempt_schedule+0x16/0x18 [ 977.939516][ T1114] ? nmi_trigger_cpumask_backtrace+0x21b/0x28b [ 977.945665][ T1114] ? nmi_trigger_cpumask_backtrace+0x24c/0x28b [ 977.951812][ T1114] ? nmi_trigger_cpumask_backtrace+0x256/0x28b [ 977.957961][ T1114] ? nmi_trigger_cpumask_backtrace+0x21b/0x28b [ 977.964118][ T1114] watchdog+0xb22/0x10c0 [ 977.968371][ T1114] kthread+0x361/0x430 [ 977.972439][ T1114] ? reset_hung_task_detector+0x30/0x30 [ 977.977980][ T1114] ? kthread_mod_delayed_work+0x1f0/0x1f0 [ 977.983697][ T1114] ret_from_fork+0x24/0x30 [ 977.989648][ T1114] Kernel Offset: disabled [ 977.994017][ T1114] Rebooting in 86400 seconds..