[ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... Starting Load/Save RF Kill Switch Status... [ OK ] Started Update UTMP about System Runlevel Changes. [ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.45' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program syzkaller login: [ 484.976079][ T35] audit: type=1400 audit(1613621162.962:8): avc: denied { execmem } for pid=8424 comm="syz-executor242" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 484.992968][ T8434] netlink: 32 bytes leftover after parsing attributes in process `syz-executor242'. [ 721.459321][ T1649] INFO: task kworker/0:0:5 blocked for more than 143 seconds. [ 721.467169][ T1649] Not tainted 5.11.0-syzkaller #0 [ 721.475750][ T1649] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 721.485750][ T1649] task:kworker/0:0 state:D stack:27160 pid: 5 ppid: 2 flags:0x00004000 [ 721.496290][ T1649] Workqueue: ipv6_addrconf addrconf_verify_work [ 721.505194][ T1649] Call Trace: [ 721.508565][ T1649] __schedule+0x90c/0x21a0 [ 721.516121][ T1649] ? io_schedule_timeout+0x140/0x140 [ 721.522631][ T1649] ? _raw_spin_unlock_irq+0x1f/0x40 [ 721.527944][ T1649] ? lockdep_hardirqs_on+0x79/0x100 [ 721.534892][ T1649] schedule+0xcf/0x270 [ 721.540350][ T1649] schedule_preempt_disabled+0xf/0x20 [ 721.545762][ T1649] __mutex_lock+0x81a/0x1110 [ 721.552108][ T1649] ? addrconf_verify_work+0xa/0x20 [ 721.557267][ T1649] ? mutex_lock_io_nested+0xf60/0xf60 [ 721.564518][ T1649] ? lock_release+0x710/0x710 [ 721.571014][ T1649] ? lock_downgrade+0x6d0/0x6d0 [ 721.576008][ T1649] addrconf_verify_work+0xa/0x20 [ 721.582810][ T1649] process_one_work+0x98d/0x15f0 [ 721.587865][ T1649] ? pwq_dec_nr_in_flight+0x320/0x320 [ 721.594977][ T1649] ? rwlock_bug.part.0+0x90/0x90 [ 721.601157][ T1649] ? _raw_spin_lock_irq+0x41/0x50 [ 721.606237][ T1649] worker_thread+0x64c/0x1120 [ 721.612689][ T1649] ? process_one_work+0x15f0/0x15f0 [ 721.617928][ T1649] kthread+0x3b1/0x4a0 [ 721.623901][ T1649] ? kthread_create_worker_on_cpu+0xf0/0xf0 [ 721.631042][ T1649] ret_from_fork+0x1f/0x30 [ 721.637843][ T1649] INFO: task syz-executor242:8445 blocked for more than 143 seconds. [ 721.649236][ T1649] Not tainted 5.11.0-syzkaller #0 [ 721.654835][ T1649] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 721.665199][ T1649] task:syz-executor242 state:D stack:27712 pid: 8445 ppid: 8430 flags:0x00000004 [ 721.675910][ T1649] Call Trace: [ 721.680518][ T1649] __schedule+0x90c/0x21a0 [ 721.684995][ T1649] ? io_schedule_timeout+0x140/0x140 [ 721.692314][ T1649] schedule+0xcf/0x270 [ 721.696435][ T1649] schedule_preempt_disabled+0xf/0x20 [ 721.703740][ T1649] __mutex_lock+0x81a/0x1110 [ 721.708507][ T1649] ? rtnetlink_rcv_msg+0x3f9/0xad0 [ 721.715637][ T1649] ? mutex_lock_io_nested+0xf60/0xf60 [ 721.722555][ T1649] ? rtnetlink_rcv_msg+0x3c3/0xad0 [ 721.727728][ T1649] rtnetlink_rcv_msg+0x3f9/0xad0 [ 721.735038][ T1649] ? rtnetlink_put_metrics+0x510/0x510 [ 721.743111][ T1649] netlink_rcv_skb+0x153/0x420 [ 721.747991][ T1649] ? rtnetlink_put_metrics+0x510/0x510 [ 721.755157][ T1649] ? netlink_ack+0xaa0/0xaa0 [ 721.761072][ T1649] ? netlink_deliver_tap+0x227/0xb70 [ 721.766433][ T1649] netlink_unicast+0x533/0x7d0 [ 721.774195][ T1649] ? netlink_attachskb+0x870/0x870 [ 721.780563][ T1649] ? _copy_from_iter_full+0x275/0x850 [ 721.786064][ T1649] netlink_sendmsg+0x856/0xd90 [ 721.792893][ T1649] ? netlink_unicast+0x7d0/0x7d0 [ 721.798160][ T1649] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 721.806376][ T1649] ? netlink_unicast+0x7d0/0x7d0 [ 721.812592][ T1649] sock_sendmsg+0xcf/0x120 [ 721.817243][ T1649] ____sys_sendmsg+0x6e8/0x810 [ 721.823882][ T1649] ? kernel_sendmsg+0x50/0x50 [ 721.828614][ T1649] ? do_recvmmsg+0x6c0/0x6c0 [ 721.835027][ T1649] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 721.842344][ T1649] ___sys_sendmsg+0xf3/0x170 [ 721.846986][ T1649] ? sendmsg_copy_msghdr+0x160/0x160 [ 721.854021][ T1649] ? __fget_files+0x266/0x3d0 [ 721.858819][ T1649] ? lock_downgrade+0x6d0/0x6d0 [ 721.865492][ T1649] ? __fget_files+0x288/0x3d0 [ 721.871497][ T1649] ? __fget_light+0xea/0x280 [ 721.876410][ T1649] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 721.884830][ T1649] __sys_sendmsg+0xe5/0x1b0 [ 721.890624][ T1649] ? __sys_sendmsg_sock+0xb0/0xb0 [ 721.897871][ T1649] ? __do_sys_futex+0x2a2/0x470 [ 721.905919][ T1649] ? syscall_enter_from_user_mode+0x1d/0x50 [ 721.913107][ T1649] do_syscall_64+0x2d/0x70 [ 721.917564][ T1649] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 721.925320][ T1649] RIP: 0033:0x445b79 [ 721.930707][ T1649] RSP: 002b:00007f31970ae318 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 721.940447][ T1649] RAX: ffffffffffffffda RBX: 00000000004ca438 RCX: 0000000000445b79 [ 721.948455][ T1649] RDX: 0000000000000000 RSI: 0000000020002980 RDI: 0000000000000004 [ 721.958738][ T1649] RBP: 00000000004ca430 R08: 0000000000000050 R09: 0000000000000000 [ 721.968033][ T1649] R10: 0000000000000008 R11: 0000000000000246 R12: 6b72616d6e6e6f63 [ 721.977310][ T1649] R13: 00007ffeaad8d88f R14: 00007f31970ae400 R15: 0000000000022000 [ 721.988194][ T1649] INFO: task syz-executor242:8434 blocked for more than 143 seconds. [ 721.997688][ T1649] Not tainted 5.11.0-syzkaller #0 [ 722.004772][ T1649] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 722.015632][ T1649] task:syz-executor242 state:D stack:25216 pid: 8434 ppid: 8429 flags:0x00004004 [ 722.027421][ T1649] Call Trace: [ 722.033219][ T1649] __schedule+0x90c/0x21a0 [ 722.037699][ T1649] ? io_schedule_timeout+0x140/0x140 [ 722.044959][ T1649] schedule+0xcf/0x270 [ 722.049091][ T1649] schedule_preempt_disabled+0xf/0x20 [ 722.056229][ T1649] __mutex_lock+0x81a/0x1110 [ 722.062026][ T1649] ? tcf_action_init_1+0x743/0x990 [ 722.067874][ T1649] ? mutex_lock_io_nested+0xf60/0xf60 [ 722.075077][ T1649] ? tc_lookup_action_n+0xcd/0xf0 [ 722.082791][ T1649] ? lock_downgrade+0x6d0/0x6d0 [ 722.087838][ T1649] ? generic_xdp_install+0x7b0/0x7b0 [ 722.095071][ T1649] tcf_action_init_1+0x743/0x990 [ 722.101378][ T1649] ? tcf_action_dump_old+0x80/0x80 [ 722.106624][ T1649] ? find_held_lock+0x2d/0x110 [ 722.114628][ T1649] tcf_action_init+0x265/0x4b0 [ 722.120865][ T1649] ? tcf_action_init_1+0x990/0x990 [ 722.126489][ T1649] ? avc_has_perm_noaudit+0x1ee/0x390 [ 722.133715][ T1649] tcf_action_add+0xd9/0x360 [ 722.138354][ T1649] ? tca_action_gd+0xe20/0xe20 [ 722.145174][ T1649] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 722.152621][ T1649] ? __nla_parse+0x3d/0x50 [ 722.157263][ T1649] tc_ctl_action+0x33a/0x440 [ 722.164793][ T1649] ? tcf_action_add+0x360/0x360 [ 722.170844][ T1649] ? rtnetlink_rcv_msg+0x3c3/0xad0 [ 722.176032][ T1649] ? tcf_action_add+0x360/0x360 [ 722.182662][ T1649] rtnetlink_rcv_msg+0x44e/0xad0 [ 722.187649][ T1649] ? rtnetlink_put_metrics+0x510/0x510 [ 722.194863][ T1649] netlink_rcv_skb+0x153/0x420 [ 722.200809][ T1649] ? rtnetlink_put_metrics+0x510/0x510 [ 722.206317][ T1649] ? netlink_ack+0xaa0/0xaa0 [ 722.212650][ T1649] ? netlink_deliver_tap+0x227/0xb70 [ 722.218011][ T1649] netlink_unicast+0x533/0x7d0 [ 722.224613][ T1649] ? netlink_attachskb+0x870/0x870 [ 722.232540][ T1649] ? _copy_from_iter_full+0x275/0x850 [ 722.237976][ T1649] netlink_sendmsg+0x856/0xd90 [ 722.244735][ T1649] ? netlink_unicast+0x7d0/0x7d0 [ 722.250966][ T1649] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 722.257876][ T1649] ? netlink_unicast+0x7d0/0x7d0 [ 722.264805][ T1649] sock_sendmsg+0xcf/0x120 [ 722.270482][ T1649] ____sys_sendmsg+0x6e8/0x810 [ 722.275396][ T1649] ? kernel_sendmsg+0x50/0x50 [ 722.281996][ T1649] ? do_recvmmsg+0x6c0/0x6c0 [ 722.286649][ T1649] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 722.295643][ T1649] ___sys_sendmsg+0xf3/0x170 [ 722.301383][ T1649] ? sendmsg_copy_msghdr+0x160/0x160 [ 722.306714][ T1649] ? __fget_files+0x266/0x3d0 [ 722.313299][ T1649] ? lock_downgrade+0x6d0/0x6d0 [ 722.318735][ T1649] ? do_huge_pmd_anonymous_page+0x8f1/0x2390 [ 722.326610][ T1649] ? __fget_files+0x288/0x3d0 [ 722.332652][ T1649] ? __fget_light+0xea/0x280 [ 722.337277][ T1649] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 722.345331][ T1649] __sys_sendmsg+0xe5/0x1b0 [ 722.351546][ T1649] ? __sys_sendmsg_sock+0xb0/0xb0 [ 722.356694][ T1649] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 722.364717][ T1649] ? syscall_enter_from_user_mode+0x1d/0x50 [ 722.372079][ T1649] do_syscall_64+0x2d/0x70 [ 722.376969][ T1649] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 722.384900][ T1649] RIP: 0033:0x445b79 [ 722.389006][ T1649] RSP: 002b:00007f31970cf318 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 722.399848][ T1649] RAX: ffffffffffffffda RBX: 00000000004ca428 RCX: 0000000000445b79 [ 722.407961][ T1649] RDX: 0000000000000000 RSI: 0000000020002980 RDI: 0000000000000003 [ 722.418399][ T1649] RBP: 00000000004ca420 R08: 0000000000000009 R09: 0000000000000000 [ 722.428906][ T1649] R10: 0000000000000000 R11: 0000000000000246 R12: 6b72616d6e6e6f63 [ 722.438152][ T1649] R13: 00007ffeaad8d88f R14: 00007f31970cf400 R15: 0000000000022000 [ 722.447340][ T1649] INFO: task syz-executor242:8444 blocked for more than 144 seconds. [ 722.456948][ T1649] Not tainted 5.11.0-syzkaller #0 [ 722.463520][ T1649] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 722.473275][ T1649] task:syz-executor242 state:D stack:28040 pid: 8444 ppid: 8429 flags:0x00004004 [ 722.485083][ T1649] Call Trace: [ 722.488395][ T1649] __schedule+0x90c/0x21a0 [ 722.494512][ T1649] ? io_schedule_timeout+0x140/0x140 [ 722.500910][ T1649] schedule+0xcf/0x270 [ 722.505030][ T1649] schedule_preempt_disabled+0xf/0x20 [ 722.512133][ T1649] __mutex_lock+0x81a/0x1110 [ 722.516775][ T1649] ? rtnetlink_rcv_msg+0x3f9/0xad0 [ 722.523810][ T1649] ? mutex_lock_io_nested+0xf60/0xf60 [ 722.530411][ T1649] ? rtnetlink_rcv_msg+0x3c3/0xad0 [ 722.535578][ T1649] rtnetlink_rcv_msg+0x3f9/0xad0 [ 722.542193][ T1649] ? rtnetlink_put_metrics+0x510/0x510 [ 722.547705][ T1649] netlink_rcv_skb+0x153/0x420 [ 722.555499][ T1649] ? rtnetlink_put_metrics+0x510/0x510 [ 722.562167][ T1649] ? netlink_ack+0xaa0/0xaa0 [ 722.566795][ T1649] ? netlink_deliver_tap+0x227/0xb70 [ 722.574052][ T1649] netlink_unicast+0x533/0x7d0 [ 722.578862][ T1649] ? netlink_attachskb+0x870/0x870 [ 722.585648][ T1649] ? _copy_from_iter_full+0x275/0x850 [ 722.592316][ T1649] netlink_sendmsg+0x856/0xd90 [ 722.597149][ T1649] ? netlink_unicast+0x7d0/0x7d0 [ 722.603876][ T1649] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 722.611499][ T1649] ? netlink_unicast+0x7d0/0x7d0 [ 722.616473][ T1649] sock_sendmsg+0xcf/0x120 [ 722.622567][ T1649] ____sys_sendmsg+0x6e8/0x810 [ 722.627379][ T1649] ? kernel_sendmsg+0x50/0x50 [ 722.633873][ T1649] ? do_recvmmsg+0x6c0/0x6c0 [ 722.638596][ T1649] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 722.646349][ T1649] ___sys_sendmsg+0xf3/0x170 [ 722.652385][ T1649] ? sendmsg_copy_msghdr+0x160/0x160 [ 722.657726][ T1649] ? __fget_files+0x266/0x3d0 [ 722.664106][ T1649] ? lock_downgrade+0x6d0/0x6d0 [ 722.669035][ T1649] ? __fget_files+0x288/0x3d0 [ 722.675481][ T1649] ? __fget_light+0xea/0x280 [ 722.682624][ T1649] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 722.688933][ T1649] __sys_sendmsg+0xe5/0x1b0 [ 722.695427][ T1649] ? __sys_sendmsg_sock+0xb0/0xb0 [ 722.701707][ T1649] ? __do_sys_futex+0x2a2/0x470 [ 722.706622][ T1649] ? syscall_enter_from_user_mode+0x1d/0x50 [ 722.715668][ T1649] do_syscall_64+0x2d/0x70 [ 722.721392][ T1649] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 722.727426][ T1649] RIP: 0033:0x445b79 [ 722.733126][ T1649] RSP: 002b:00007f31970ae318 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 722.743673][ T1649] RAX: ffffffffffffffda RBX: 00000000004ca438 RCX: 0000000000445b79 [ 722.752987][ T1649] RDX: 0000000000000000 RSI: 0000000020002980 RDI: 0000000000000004 [ 722.762339][ T1649] RBP: 00000000004ca430 R08: 0000000000000050 R09: 0000000000000000 [ 722.771693][ T1649] R10: 0000000000000008 R11: 0000000000000246 R12: 6b72616d6e6e6f63 [ 722.781172][ T1649] R13: 00007ffeaad8d88f R14: 00007f31970ae400 R15: 0000000000022000 [ 722.790678][ T1649] INFO: task syz-executor242:8440 blocked for more than 144 seconds. [ 722.798809][ T1649] Not tainted 5.11.0-syzkaller #0 [ 722.808002][ T1649] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 722.819236][ T1649] task:syz-executor242 state:D stack:28672 pid: 8440 ppid: 8428 flags:0x00004004 [ 722.829042][ T1649] Call Trace: [ 722.834165][ T1649] __schedule+0x90c/0x21a0 [ 722.838947][ T1649] ? io_schedule_timeout+0x140/0x140 [ 722.846107][ T1649] schedule+0xcf/0x270 [ 722.851750][ T1649] schedule_preempt_disabled+0xf/0x20 [ 722.857353][ T1649] __mutex_lock+0x81a/0x1110 [ 722.864123][ T1649] ? rtnetlink_rcv_msg+0x3f9/0xad0 [ 722.871636][ T1649] ? mutex_lock_io_nested+0xf60/0xf60 [ 722.877069][ T1649] ? rtnetlink_rcv_msg+0x3c3/0xad0 [ 722.883980][ T1649] rtnetlink_rcv_msg+0x3f9/0xad0 [ 722.889058][ T1649] ? rtnetlink_put_metrics+0x510/0x510 [ 722.896482][ T1649] netlink_rcv_skb+0x153/0x420 [ 722.902808][ T1649] ? rtnetlink_put_metrics+0x510/0x510 [ 722.908345][ T1649] ? netlink_ack+0xaa0/0xaa0 [ 722.914746][ T1649] ? netlink_deliver_tap+0x227/0xb70 [ 722.921173][ T1649] netlink_unicast+0x533/0x7d0 [ 722.925985][ T1649] ? netlink_attachskb+0x870/0x870 [ 722.932840][ T1649] ? _copy_from_iter_full+0x275/0x850 [ 722.938271][ T1649] netlink_sendmsg+0x856/0xd90 [ 722.946020][ T1649] ? netlink_unicast+0x7d0/0x7d0 [ 722.954670][ T1649] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 722.962178][ T1649] ? netlink_unicast+0x7d0/0x7d0 [ 722.967187][ T1649] sock_sendmsg+0xcf/0x120 [ 722.973528][ T1649] ____sys_sendmsg+0x6e8/0x810 [ 722.978424][ T1649] ? kernel_sendmsg+0x50/0x50 [ 722.984883][ T1649] ? do_recvmmsg+0x6c0/0x6c0 [ 722.990657][ T1649] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 722.996690][ T1649] ___sys_sendmsg+0xf3/0x170 [ 723.003309][ T1649] ? sendmsg_copy_msghdr+0x160/0x160 [ 723.010438][ T1649] ? __fget_files+0x266/0x3d0 [ 723.015396][ T1649] ? lock_downgrade+0x6d0/0x6d0 [ 723.022497][ T1649] ? do_huge_pmd_anonymous_page+0x8f1/0x2390 [ 723.028553][ T1649] ? __fget_files+0x288/0x3d0 [ 723.035017][ T1649] ? __fget_light+0xea/0x280 [ 723.041383][ T1649] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 723.047675][ T1649] __sys_sendmsg+0xe5/0x1b0 [ 723.054022][ T1649] ? __sys_sendmsg_sock+0xb0/0xb0 [ 723.060531][ T1649] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 723.066836][ T1649] ? syscall_enter_from_user_mode+0x1d/0x50 [ 723.075714][ T1649] do_syscall_64+0x2d/0x70 [ 723.081659][ T1649] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 723.087603][ T1649] RIP: 0033:0x445b79 [ 723.093183][ T1649] RSP: 002b:00007f31970cf318 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 723.102832][ T1649] RAX: ffffffffffffffda RBX: 00000000004ca428 RCX: 0000000000445b79 [ 723.112016][ T1649] RDX: 0000000000000000 RSI: 0000000020002980 RDI: 0000000000000003 [ 723.121220][ T1649] RBP: 00000000004ca420 R08: 0000000000000009 R09: 0000000000000000 [ 723.130475][ T1649] R10: 0000000000000000 R11: 0000000000000246 R12: 6b72616d6e6e6f63 [ 723.138490][ T1649] R13: 00007ffeaad8d88f R14: 00007f31970cf400 R15: 0000000000022000 [ 723.148303][ T1649] INFO: task syz-executor242:8449 blocked for more than 145 seconds. [ 723.158786][ T1649] Not tainted 5.11.0-syzkaller #0 [ 723.165566][ T1649] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 723.175452][ T1649] task:syz-executor242 state:D stack:28672 pid: 8449 ppid: 8428 flags:0x00000004 [ 723.186222][ T1649] Call Trace: [ 723.192118][ T1649] __schedule+0x90c/0x21a0 [ 723.196602][ T1649] ? io_schedule_timeout+0x140/0x140 [ 723.204734][ T1649] schedule+0xcf/0x270 [ 723.208847][ T1649] schedule_preempt_disabled+0xf/0x20 [ 723.215909][ T1649] __mutex_lock+0x81a/0x1110 [ 723.221735][ T1649] ? rtnetlink_rcv_msg+0x3f9/0xad0 [ 723.227502][ T1649] ? mutex_lock_io_nested+0xf60/0xf60 [ 723.234602][ T1649] ? rtnetlink_rcv_msg+0x3c3/0xad0 [ 723.240870][ T1649] rtnetlink_rcv_msg+0x3f9/0xad0 [ 723.245849][ T1649] ? rtnetlink_put_metrics+0x510/0x510 [ 723.253183][ T1649] netlink_rcv_skb+0x153/0x420 [ 723.257985][ T1649] ? rtnetlink_put_metrics+0x510/0x510 [ 723.265041][ T1649] ? netlink_ack+0xaa0/0xaa0 [ 723.270803][ T1649] ? netlink_deliver_tap+0x227/0xb70 [ 723.276231][ T1649] netlink_unicast+0x533/0x7d0 [ 723.282691][ T1649] ? netlink_attachskb+0x870/0x870 [ 723.288367][ T1649] ? _copy_from_iter_full+0x275/0x850 [ 723.295962][ T1649] netlink_sendmsg+0x856/0xd90 [ 723.302128][ T1649] ? netlink_unicast+0x7d0/0x7d0 [ 723.307129][ T1649] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 723.315327][ T1649] ? netlink_unicast+0x7d0/0x7d0 [ 723.321514][ T1649] sock_sendmsg+0xcf/0x120 [ 723.325972][ T1649] ____sys_sendmsg+0x6e8/0x810 [ 723.333731][ T1649] ? kernel_sendmsg+0x50/0x50 [ 723.338448][ T1649] ? do_recvmmsg+0x6c0/0x6c0 [ 723.344788][ T1649] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 723.351972][ T1649] ___sys_sendmsg+0xf3/0x170 [ 723.356599][ T1649] ? sendmsg_copy_msghdr+0x160/0x160 [ 723.363578][ T1649] ? __fget_files+0x266/0x3d0 [ 723.368319][ T1649] ? lock_downgrade+0x6d0/0x6d0 [ 723.374956][ T1649] ? __fget_files+0x288/0x3d0 [ 723.380788][ T1649] ? __fget_light+0xea/0x280 [ 723.385503][ T1649] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 723.393494][ T1649] __sys_sendmsg+0xe5/0x1b0 [ 723.398039][ T1649] ? __sys_sendmsg_sock+0xb0/0xb0 [ 723.404723][ T1649] ? __do_sys_futex+0x2a2/0x470 [ 723.410751][ T1649] ? syscall_enter_from_user_mode+0x1d/0x50 [ 723.416690][ T1649] do_syscall_64+0x2d/0x70 [ 723.424021][ T1649] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 723.431038][ T1649] RIP: 0033:0x445b79 [ 723.434954][ T1649] RSP: 002b:00007f31970ae318 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 723.445016][ T1649] RAX: ffffffffffffffda RBX: 00000000004ca438 RCX: 0000000000445b79 [ 723.454362][ T1649] RDX: 0000000000000000 RSI: 0000000020002980 RDI: 0000000000000004 [ 723.464817][ T1649] RBP: 00000000004ca430 R08: 0000000000000050 R09: 0000000000000000 [ 723.474280][ T1649] R10: 0000000000000008 R11: 0000000000000246 R12: 6b72616d6e6e6f63 [ 723.483533][ T1649] R13: 00007ffeaad8d88f R14: 00007f31970ae400 R15: 0000000000022000 [ 723.492853][ T1649] INFO: task syz-executor242:8441 blocked for more than 145 seconds. [ 723.502964][ T1649] Not tainted 5.11.0-syzkaller #0 [ 723.508710][ T1649] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 723.519020][ T1649] task:syz-executor242 state:D stack:28696 pid: 8441 ppid: 8425 flags:0x00004004 [ 723.529517][ T1649] Call Trace: [ 723.532823][ T1649] __schedule+0x90c/0x21a0 [ 723.537270][ T1649] ? io_schedule_timeout+0x140/0x140 [ 723.544787][ T1649] schedule+0xcf/0x270 [ 723.548899][ T1649] schedule_preempt_disabled+0xf/0x20 [ 723.556053][ T1649] __mutex_lock+0x81a/0x1110 [ 723.562087][ T1649] ? rtnetlink_rcv_msg+0x3f9/0xad0 [ 723.567248][ T1649] ? mutex_lock_io_nested+0xf60/0xf60 [ 723.574691][ T1649] ? rtnetlink_rcv_msg+0x3c3/0xad0 [ 723.581075][ T1649] rtnetlink_rcv_msg+0x3f9/0xad0 [ 723.586079][ T1649] ? rtnetlink_put_metrics+0x510/0x510 [ 723.594556][ T1649] netlink_rcv_skb+0x153/0x420 [ 723.600591][ T1649] ? rtnetlink_put_metrics+0x510/0x510 [ 723.606181][ T1649] ? netlink_ack+0xaa0/0xaa0 [ 723.612657][ T1649] ? netlink_deliver_tap+0x227/0xb70 [ 723.618005][ T1649] netlink_unicast+0x533/0x7d0 [ 723.624633][ T1649] ? netlink_attachskb+0x870/0x870 [ 723.630853][ T1649] ? _copy_from_iter_full+0x275/0x850 [ 723.636381][ T1649] netlink_sendmsg+0x856/0xd90 [ 723.642936][ T1649] ? netlink_unicast+0x7d0/0x7d0 [ 723.647922][ T1649] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 723.657290][ T1649] ? netlink_unicast+0x7d0/0x7d0 [ 723.663533][ T1649] sock_sendmsg+0xcf/0x120 [ 723.667988][ T1649] ____sys_sendmsg+0x6e8/0x810 [ 723.674506][ T1649] ? kernel_sendmsg+0x50/0x50 [ 723.680351][ T1649] ? do_recvmmsg+0x6c0/0x6c0 [ 723.684983][ T1649] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 723.692828][ T1649] ___sys_sendmsg+0xf3/0x170 [ 723.697479][ T1649] ? sendmsg_copy_msghdr+0x160/0x160 [ 723.704737][ T1649] ? __fget_files+0x266/0x3d0 [ 723.710648][ T1649] ? lock_downgrade+0x6d0/0x6d0 [ 723.715550][ T1649] ? do_huge_pmd_anonymous_page+0x8f1/0x2390 [ 723.724602][ T1649] ? __fget_files+0x288/0x3d0 [ 723.730497][ T1649] ? __fget_light+0xea/0x280 [ 723.735155][ T1649] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 723.743841][ T1649] __sys_sendmsg+0xe5/0x1b0 [ 723.748489][ T1649] ? __sys_sendmsg_sock+0xb0/0xb0 [ 723.755306][ T1649] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 723.763104][ T1649] ? syscall_enter_from_user_mode+0x1d/0x50 [ 723.769057][ T1649] do_syscall_64+0x2d/0x70 [ 723.775247][ T1649] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 723.782506][ T1649] RIP: 0033:0x445b79 [ 723.786437][ T1649] RSP: 002b:00007f31970cf318 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 723.796624][ T1649] RAX: ffffffffffffffda RBX: 00000000004ca428 RCX: 0000000000445b79 [ 723.805948][ T1649] RDX: 0000000000000000 RSI: 0000000020002980 RDI: 0000000000000003 [ 723.815386][ T1649] RBP: 00000000004ca420 R08: 0000000000000009 R09: 0000000000000000 [ 723.824747][ T1649] R10: 0000000000000000 R11: 0000000000000246 R12: 6b72616d6e6e6f63 [ 723.834228][ T1649] R13: 00007ffeaad8d88f R14: 00007f31970cf400 R15: 0000000000022000 [ 723.843733][ T1649] INFO: task syz-executor242:8447 blocked for more than 145 seconds. [ 723.855285][ T1649] Not tainted 5.11.0-syzkaller #0 [ 723.862022][ T1649] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 723.874511][ T1649] task:syz-executor242 state:D stack:28696 pid: 8447 ppid: 8425 flags:0x00000004 [ 723.885079][ T1649] Call Trace: [ 723.888391][ T1649] __schedule+0x90c/0x21a0 [ 723.894689][ T1649] ? io_schedule_timeout+0x140/0x140 [ 723.902610][ T1649] schedule+0xcf/0x270 [ 723.906917][ T1649] schedule_preempt_disabled+0xf/0x20 [ 723.913995][ T1649] __mutex_lock+0x81a/0x1110 [ 723.918643][ T1649] ? rtnetlink_rcv_msg+0x3f9/0xad0 [ 723.925638][ T1649] ? mutex_lock_io_nested+0xf60/0xf60 [ 723.932218][ T1649] ? rtnetlink_rcv_msg+0x3c3/0xad0 [ 723.937512][ T1649] rtnetlink_rcv_msg+0x3f9/0xad0 [ 723.944433][ T1649] ? rtnetlink_put_metrics+0x510/0x510 [ 723.951141][ T1649] netlink_rcv_skb+0x153/0x420 [ 723.955970][ T1649] ? rtnetlink_put_metrics+0x510/0x510 [ 723.963233][ T1649] ? netlink_ack+0xaa0/0xaa0 [ 723.967877][ T1649] ? netlink_deliver_tap+0x227/0xb70 [ 723.975069][ T1649] netlink_unicast+0x533/0x7d0 [ 723.982389][ T1649] ? netlink_attachskb+0x870/0x870 [ 723.988342][ T1649] ? _copy_from_iter_full+0x275/0x850 [ 723.995476][ T1649] netlink_sendmsg+0x856/0xd90 [ 724.001417][ T1649] ? netlink_unicast+0x7d0/0x7d0 [ 724.006406][ T1649] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 724.014619][ T1649] ? netlink_unicast+0x7d0/0x7d0 [ 724.022650][ T1649] sock_sendmsg+0xcf/0x120 [ 724.027127][ T1649] ____sys_sendmsg+0x6e8/0x810 [ 724.034061][ T1649] ? kernel_sendmsg+0x50/0x50 [ 724.038955][ T1649] ? do_recvmmsg+0x6c0/0x6c0 [ 724.045459][ T1649] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 724.052763][ T1649] ___sys_sendmsg+0xf3/0x170 [ 724.057601][ T1649] ? sendmsg_copy_msghdr+0x160/0x160 [ 724.065000][ T1649] ? __fget_files+0x266/0x3d0 [ 724.071051][ T1649] ? lock_downgrade+0x6d0/0x6d0 [ 724.075963][ T1649] ? __fget_files+0x288/0x3d0 [ 724.082427][ T1649] ? __fget_light+0xea/0x280 [ 724.087064][ T1649] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 724.095379][ T1649] __sys_sendmsg+0xe5/0x1b0 [ 724.101163][ T1649] ? __sys_sendmsg_sock+0xb0/0xb0 [ 724.106246][ T1649] ? __do_sys_futex+0x2a2/0x470 [ 724.114658][ T1649] ? syscall_enter_from_user_mode+0x1d/0x50 [ 724.121958][ T1649] do_syscall_64+0x2d/0x70 [ 724.126658][ T1649] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 724.135576][ T1649] RIP: 0033:0x445b79 [ 724.140766][ T1649] RSP: 002b:00007f31970ae318 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 724.150680][ T1649] RAX: ffffffffffffffda RBX: 00000000004ca438 RCX: 0000000000445b79 [ 724.158772][ T1649] RDX: 0000000000000000 RSI: 0000000020002980 RDI: 0000000000000004 [ 724.169551][ T1649] RBP: 00000000004ca430 R08: 0000000000000050 R09: 0000000000000000 [ 724.177582][ T1649] R10: 0000000000000008 R11: 0000000000000246 R12: 6b72616d6e6e6f63 [ 724.187638][ T1649] R13: 00007ffeaad8d88f R14: 00007f31970ae400 R15: 0000000000022000 [ 724.197022][ T1649] INFO: task syz-executor242:8439 blocked for more than 146 seconds. [ 724.207489][ T1649] Not tainted 5.11.0-syzkaller #0 [ 724.214231][ T1649] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 724.224101][ T1649] task:syz-executor242 state:D stack:28672 pid: 8439 ppid: 8426 flags:0x00004004 [ 724.234556][ T1649] Call Trace: [ 724.238039][ T1649] __schedule+0x90c/0x21a0 [ 724.245392][ T1649] ? io_schedule_timeout+0x140/0x140 [ 724.251967][ T1649] schedule+0xcf/0x270 [ 724.256075][ T1649] schedule_preempt_disabled+0xf/0x20 [ 724.263211][ T1649] __mutex_lock+0x81a/0x1110 [ 724.267848][ T1649] ? rtnetlink_rcv_msg+0x3f9/0xad0 [ 724.274738][ T1649] ? mutex_lock_io_nested+0xf60/0xf60 [ 724.281312][ T1649] ? rtnetlink_rcv_msg+0x3c3/0xad0 [ 724.286486][ T1649] rtnetlink_rcv_msg+0x3f9/0xad0 [ 724.293276][ T1649] ? rtnetlink_put_metrics+0x510/0x510 [ 724.300521][ T1649] netlink_rcv_skb+0x153/0x420 [ 724.305504][ T1649] ? rtnetlink_put_metrics+0x510/0x510 [ 724.312713][ T1649] ? netlink_ack+0xaa0/0xaa0 [ 724.317370][ T1649] ? netlink_deliver_tap+0x227/0xb70 [ 724.324487][ T1649] netlink_unicast+0x533/0x7d0 [ 724.330446][ T1649] ? netlink_attachskb+0x870/0x870 [ 724.335610][ T1649] ? _copy_from_iter_full+0x275/0x850 [ 724.342919][ T1649] netlink_sendmsg+0x856/0xd90 [ 724.347734][ T1649] ? netlink_unicast+0x7d0/0x7d0 [ 724.354819][ T1649] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 724.362417][ T1649] ? netlink_unicast+0x7d0/0x7d0 [ 724.367408][ T1649] sock_sendmsg+0xcf/0x120 [ 724.376054][ T1649] ____sys_sendmsg+0x6e8/0x810 [ 724.382059][ T1649] ? kernel_sendmsg+0x50/0x50 [ 724.386784][ T1649] ? do_recvmmsg+0x6c0/0x6c0 [ 724.393025][ T1649] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 724.399063][ T1649] ___sys_sendmsg+0xf3/0x170 [ 724.405421][ T1649] ? sendmsg_copy_msghdr+0x160/0x160 [ 724.411980][ T1649] ? __fget_files+0x266/0x3d0 [ 724.416697][ T1649] ? lock_downgrade+0x6d0/0x6d0 [ 724.423296][ T1649] ? do_huge_pmd_anonymous_page+0x8f1/0x2390 [ 724.430535][ T1649] ? __fget_files+0x288/0x3d0 [ 724.435281][ T1649] ? __fget_light+0xea/0x280 [ 724.441679][ T1649] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 724.448164][ T1649] __sys_sendmsg+0xe5/0x1b0 [ 724.454500][ T1649] ? __sys_sendmsg_sock+0xb0/0xb0 [ 724.460691][ T1649] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 724.466989][ T1649] ? syscall_enter_from_user_mode+0x1d/0x50 [ 724.474615][ T1649] do_syscall_64+0x2d/0x70 [ 724.480264][ T1649] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 724.486195][ T1649] RIP: 0033:0x445b79 [ 724.491752][ T1649] RSP: 002b:00007f31970cf318 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 724.502656][ T1649] RAX: ffffffffffffffda RBX: 00000000004ca428 RCX: 0000000000445b79 [ 724.512331][ T1649] RDX: 0000000000000000 RSI: 0000000020002980 RDI: 0000000000000003 [ 724.521496][ T1649] RBP: 00000000004ca420 R08: 0000000000000009 R09: 0000000000000000 [ 724.530604][ T1649] R10: 0000000000000000 R11: 0000000000000246 R12: 6b72616d6e6e6f63 [ 724.538602][ T1649] R13: 00007ffeaad8d88f R14: 00007f31970cf400 R15: 0000000000022000 [ 724.548567][ T1649] INFO: task syz-executor242:8446 blocked for more than 146 seconds. [ 724.558675][ T1649] Not tainted 5.11.0-syzkaller #0 [ 724.565320][ T1649] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 724.575100][ T1649] task:syz-executor242 state:D stack:28696 pid: 8446 ppid: 8426 flags:0x00000004 [ 724.585598][ T1649] Call Trace: [ 724.590520][ T1649] __schedule+0x90c/0x21a0 [ 724.595074][ T1649] ? io_schedule_timeout+0x140/0x140 [ 724.602132][ T1649] schedule+0xcf/0x270 [ 724.606283][ T1649] schedule_preempt_disabled+0xf/0x20 [ 724.615154][ T1649] __mutex_lock+0x81a/0x1110 [ 724.620991][ T1649] ? rtnetlink_rcv_msg+0x3f9/0xad0 [ 724.626325][ T1649] ? mutex_lock_io_nested+0xf60/0xf60 [ 724.634813][ T1649] ? rtnetlink_rcv_msg+0x3c3/0xad0 [ 724.641211][ T1649] rtnetlink_rcv_msg+0x3f9/0xad0 [ 724.646549][ T1649] ? rtnetlink_put_metrics+0x510/0x510 [ 724.654002][ T1649] netlink_rcv_skb+0x153/0x420 [ 724.658827][ T1649] ? rtnetlink_put_metrics+0x510/0x510 [ 724.666086][ T1649] ? netlink_ack+0xaa0/0xaa0 [ 724.671881][ T1649] ? netlink_deliver_tap+0x227/0xb70 [ 724.677229][ T1649] netlink_unicast+0x533/0x7d0 [ 724.683779][ T1649] ? netlink_attachskb+0x870/0x870 [ 724.689125][ T1649] ? _copy_from_iter_full+0x275/0x850 [ 724.696183][ T1649] netlink_sendmsg+0x856/0xd90 [ 724.702275][ T1649] ? netlink_unicast+0x7d0/0x7d0 [ 724.707263][ T1649] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 724.715429][ T1649] ? netlink_unicast+0x7d0/0x7d0 [ 724.721640][ T1649] sock_sendmsg+0xcf/0x120 [ 724.726096][ T1649] ____sys_sendmsg+0x6e8/0x810 [ 724.732768][ T1649] ? kernel_sendmsg+0x50/0x50 [ 724.737493][ T1649] ? do_recvmmsg+0x6c0/0x6c0 [ 724.745177][ T1649] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 724.752632][ T1649] ___sys_sendmsg+0xf3/0x170 [ 724.757300][ T1649] ? sendmsg_copy_msghdr+0x160/0x160 [ 724.765634][ T1649] ? __fget_files+0x266/0x3d0 [ 724.771609][ T1649] ? lock_downgrade+0x6d0/0x6d0 [ 724.776532][ T1649] ? __fget_files+0x288/0x3d0 [ 724.783122][ T1649] ? __fget_light+0xea/0x280 [ 724.787784][ T1649] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 724.796685][ T1649] __sys_sendmsg+0xe5/0x1b0 [ 724.802729][ T1649] ? __sys_sendmsg_sock+0xb0/0xb0 [ 724.807802][ T1649] ? __do_sys_futex+0x2a2/0x470 [ 724.814567][ T1649] ? syscall_enter_from_user_mode+0x1d/0x50 [ 724.821799][ T1649] do_syscall_64+0x2d/0x70 [ 724.826272][ T1649] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 724.833989][ T1649] RIP: 0033:0x445b79 [ 724.837959][ T1649] RSP: 002b:00007f31970ae318 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 724.849614][ T1649] RAX: ffffffffffffffda RBX: 00000000004ca438 RCX: 0000000000445b79 [ 724.857649][ T1649] RDX: 0000000000000000 RSI: 0000000020002980 RDI: 0000000000000004 [ 724.868015][ T1649] RBP: 00000000004ca430 R08: 0000000000000050 R09: 0000000000000000 [ 724.877416][ T1649] R10: 0000000000000008 R11: 0000000000000246 R12: 6b72616d6e6e6f63 [ 724.886748][ T1649] R13: 00007ffeaad8d88f R14: 00007f31970ae400 R15: 0000000000022000 [ 724.897299][ T1649] [ 724.897299][ T1649] Showing all locks held in the system: [ 724.908550][ T1649] 3 locks held by kworker/0:0/5: [ 724.915648][ T1649] #0: ffff888023e16d38 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work+0x871/0x15f0 [ 724.928177][ T1649] #1: ffffc90000cbfda8 ((addr_chk_work).work){+.+.}-{0:0}, at: process_one_work+0x8a5/0x15f0 [ 724.939475][ T1649] #2: ffffffff8d45bce8 (rtnl_mutex){+.+.}-{3:3}, at: addrconf_verify_work+0xa/0x20 [ 724.948977][ T1649] 1 lock held by khungtaskd/1649: [ 724.955395][ T1649] #0: ffffffff8bd73da0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x260 [ 724.966285][ T1649] 1 lock held by in:imklog/8180: [ 724.972006][ T1649] #0: ffff88801cb1a130 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0xe9/0x100 [ 724.982211][ T1649] 1 lock held by syz-executor242/8435: [ 724.988241][ T1649] 1 lock held by syz-executor242/8445: [ 724.995167][ T1649] #0: ffffffff8d45bce8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x3f9/0xad0 [ 725.005802][ T1649] 1 lock held by syz-executor242/8434: [ 725.012083][ T1649] #0: ffffffff8d45bce8 (rtnl_mutex){+.+.}-{3:3}, at: tcf_action_init_1+0x743/0x990 [ 725.023717][ T1649] 1 lock held by syz-executor242/8444: [ 725.030054][ T1649] #0: ffffffff8d45bce8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x3f9/0xad0 [ 725.040466][ T1649] 1 lock held by syz-executor242/8440: [ 725.045958][ T1649] #0: ffffffff8d45bce8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x3f9/0xad0 [ 725.056967][ T1649] 1 lock held by syz-executor242/8449: [ 725.063321][ T1649] #0: ffffffff8d45bce8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x3f9/0xad0 [ 725.073633][ T1649] 1 lock held by syz-executor242/8441: [ 725.079127][ T1649] #0: ffffffff8d45bce8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x3f9/0xad0 [ 725.090208][ T1649] 1 lock held by syz-executor242/8447: [ 725.095704][ T1649] #0: ffffffff8d45bce8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x3f9/0xad0 [ 725.106537][ T1649] 1 lock held by syz-executor242/8439: [ 725.112756][ T1649] #0: ffffffff8d45bce8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x3f9/0xad0 [ 725.123778][ T1649] 1 lock held by syz-executor242/8446: [ 725.129964][ T1649] #0: ffffffff8d45bce8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x3f9/0xad0 [ 725.140806][ T1649] 1 lock held by syz-executor242/8442: [ 725.146288][ T1649] #0: ffffffff8d45bce8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x3f9/0xad0 [ 725.158477][ T1649] 1 lock held by syz-executor242/8448: [ 725.164807][ T1649] #0: ffffffff8d45bce8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x3f9/0xad0 [ 725.175163][ T1649] [ 725.177507][ T1649] ============================================= [ 725.177507][ T1649] [ 725.187968][ T1649] NMI backtrace for cpu 0 [ 725.195200][ T1649] CPU: 0 PID: 1649 Comm: khungtaskd Not tainted 5.11.0-syzkaller #0 [ 725.203888][ T1649] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 725.213977][ T1649] Call Trace: [ 725.217279][ T1649] dump_stack+0x107/0x163 [ 725.224715][ T1649] nmi_cpu_backtrace.cold+0x44/0xd7 [ 725.229953][ T1649] ? lapic_can_unplug_cpu+0x80/0x80 [ 725.235239][ T1649] nmi_trigger_cpumask_backtrace+0x1b3/0x230 [ 725.241311][ T1649] watchdog+0xd43/0xfa0 [ 725.245543][ T1649] ? reset_hung_task_detector+0x30/0x30 [ 725.251119][ T1649] kthread+0x3b1/0x4a0 [ 725.255208][ T1649] ? kthread_create_worker_on_cpu+0xf0/0xf0 [ 725.261130][ T1649] ret_from_fork+0x1f/0x30 [ 725.266717][ T1649] Sending NMI from CPU 0 to CPUs 1: [ 725.273255][ C1] NMI backtrace for cpu 1 [ 725.273266][ C1] CPU: 1 PID: 8435 Comm: syz-executor242 Not tainted 5.11.0-syzkaller #0 [ 725.273276][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 725.273286][ C1] RIP: 0010:__lock_acquire+0x16a1/0x54f0 [ 725.273297][ C1] Code: ff 41 bf 01 00 00 00 c7 44 24 60 ff ff ff ff c7 44 24 58 ff ff ff ff c7 44 24 50 ff ff ff ff e9 8f f3 ff ff 41 0f b7 5c 24 20 <66> 81 e3 ff 1f 0f b7 db be 08 00 00 00 48 89 d8 48 c1 f8 06 48 8d [ 725.273313][ C1] RSP: 0018:ffffc900017e6b70 EFLAGS: 00000046 [ 725.273327][ C1] RAX: 0000000000040000 RBX: 0000000000000667 RCX: 00000000b1b7efea [ 725.273337][ C1] RDX: 1ffff11005886d62 RSI: fbcd58558bade0f5 RDI: 00000000f10b8249 [ 725.273345][ C1] RBP: ffff88802c436140 R08: 0000000000000000 R09: ffffffff8f87586f [ 725.273354][ C1] R10: fffffbfff1f0eb0d R11: 0000000000000001 R12: ffff88802c436af0 [ 725.273363][ C1] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 725.273372][ C1] FS: 00007f31970cf700(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 [ 725.273381][ C1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 725.273389][ C1] CR2: 00007f5cbc17a018 CR3: 000000001d5ee000 CR4: 00000000001506e0 [ 725.273398][ C1] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 725.273408][ C1] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 725.273415][ C1] Call Trace: [ 725.273420][ C1] ? lockdep_hardirqs_on+0x79/0x100 [ 725.273427][ C1] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 725.273433][ C1] lock_acquire+0x1a8/0x720 [ 725.273439][ C1] ? tcf_idr_check_alloc+0x78/0x3b0 [ 725.273446][ C1] ? lock_release+0x710/0x710 [ 725.273452][ C1] ? preempt_schedule_notrace_thunk+0x16/0x18 [ 725.273459][ C1] __mutex_lock+0x134/0x1110 [ 725.273465][ C1] ? tcf_idr_check_alloc+0x78/0x3b0 [ 725.273471][ C1] ? asm_sysvec_apic_timer_interrupt+0x12/0x20 [ 725.273478][ C1] ? tcf_idr_check_alloc+0x78/0x3b0 [ 725.273485][ C1] ? lockdep_hardirqs_on+0x79/0x100 [ 725.273491][ C1] ? asm_sysvec_apic_timer_interrupt+0x12/0x20 [ 725.273499][ C1] ? mutex_lock_io_nested+0xf60/0xf60 [ 725.273505][ C1] ? __mutex_unlock_slowpath+0xe2/0x610 [ 725.273512][ C1] ? wait_for_completion_io+0x260/0x260 [ 725.273519][ C1] ? __radix_tree_lookup+0x211/0x2a0 [ 725.273525][ C1] tcf_idr_check_alloc+0x78/0x3b0 [ 725.273531][ C1] tcf_connmark_init+0x2de/0x910 [ 725.273537][ C1] ? tcf_connmark_act+0xb40/0xb40 [ 725.273544][ C1] ? tc_lookup_action_n+0xcd/0xf0 [ 725.273550][ C1] ? lock_downgrade+0x6d0/0x6d0 [ 725.273556][ C1] ? __kmalloc_track_caller+0x39/0x440 [ 725.273562][ C1] tcf_action_init_1+0x63b/0x990 [ 725.273568][ C1] ? tcf_action_dump_old+0x80/0x80 [ 725.273575][ C1] tcf_action_init+0x265/0x4b0 [ 725.273581][ C1] ? tcf_action_init_1+0x990/0x990 [ 725.273587][ C1] ? avc_has_perm_noaudit+0x1ee/0x390 [ 725.273594][ C1] tcf_action_add+0xd9/0x360 [ 725.273599][ C1] ? tca_action_gd+0xe20/0xe20 [ 725.273606][ C1] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 725.273613][ C1] ? __nla_parse+0x3d/0x50 [ 725.273618][ C1] tc_ctl_action+0x33a/0x440 [ 725.273624][ C1] ? tcf_action_add+0x360/0x360 [ 725.273631][ C1] ? rtnetlink_rcv_msg+0x3c3/0xad0 [ 725.273637][ C1] ? tcf_action_add+0x360/0x360 [ 725.273643][ C1] rtnetlink_rcv_msg+0x44e/0xad0 [ 725.273649][ C1] ? rtnetlink_put_metrics+0x510/0x510 [ 725.273656][ C1] netlink_rcv_skb+0x153/0x420 [ 725.273662][ C1] ? rtnetlink_put_metrics+0x510/0x510 [ 725.273668][ C1] ? netlink_ack+0xaa0/0xaa0 [ 725.273674][ C1] ? netlink_deliver_tap+0x227/0xb70 [ 725.273680][ C1] netlink_unicast+0x533/0x7d0 [ 725.273705][ C1] ? netlink_attachskb+0x870/0x870 [ 725.273712][ C1] ? _copy_from_iter_full+0x275/0x850 [ 725.273718][ C1] netlink_sendmsg+0x856/0xd90 [ 725.273724][ C1] ? netlink_unicast+0x7d0/0x7d0 [ 725.273731][ C1] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 725.273738][ C1] ? netlink_unicast+0x7d0/0x7d0 [ 725.273744][ C1] sock_sendmsg+0xcf/0x120 [ 725.273750][ C1] ____sys_sendmsg+0x6e8/0x810 [ 725.273755][ C1] ? kernel_sendmsg+0x50/0x50 [ 725.273761][ C1] ? do_recvmmsg+0x6c0/0x6c0 [ 725.273768][ C1] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 725.273774][ C1] ___sys_sendmsg+0xf3/0x170 [ 725.273781][ C1] ? sendmsg_copy_msghdr+0x160/0x160 [ 725.273787][ C1] ? __fget_files+0x266/0x3d0 [ 725.273793][ C1] ? lock_downgrade+0x6d0/0x6d0 [ 725.273799][ C1] ? do_huge_pmd_anonymous_page+0x8f1/0x2390 [ 725.273806][ C1] ? __fget_files+0x288/0x3d0 [ 725.273811][ C1] ? __fget_light+0xea/0x280 [ 725.273818][ C1] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 725.273825][ C1] __sys_sendmsg+0xe5/0x1b0 [ 725.273831][ C1] ? __sys_sendmsg_sock+0xb0/0xb0 [ 725.273837][ C1] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 725.273844][ C1] ? syscall_enter_from_user_mode+0x1d/0x50 [ 725.273851][ C1] do_syscall_64+0x2d/0x70 [ 725.273857][ C1] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 725.273864][ C1] RIP: 0033:0x445b79 [ 725.273873][ C1] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 11 15 00 00 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 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 725.273889][ C1] RSP: 002b:00007f31970cf318 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 725.273904][ C1] RAX: ffffffffffffffda RBX: 00000000004ca428 RCX: 0000000000445b79 [ 725.273913][ C1] RDX: 0000000000000000 RSI: 0000000020002980 RDI: 0000000000000003 [ 725.273922][ C1] RBP: 00000000004ca420 R08: 0000000000000009 R09: 0000000000000000 [ 725.273931][ C1] R10: 0000000000000000 R11: 0000000000000246 R12: 6b72616d6e6e6f63 [ 725.273940][ C1] R13: 00007ffeaad8d88f R14: 00007f31970cf400 R15: 0000000000022000 [ 725.273949][ C1] INFO: NMI handler (nmi_cpu_backtrace_handler) took too long to run: 1.154 msecs [ 725.278942][ T1649] Kernel panic - not syncing: hung_task: blocked tasks [ 725.850092][ T1649] CPU: 0 PID: 1649 Comm: khungtaskd Not tainted 5.11.0-syzkaller #0 [ 725.859009][ T1649] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 725.869120][ T1649] Call Trace: [ 725.872427][ T1649] dump_stack+0x107/0x163 [ 725.876801][ T1649] panic+0x306/0x73d [ 725.880767][ T1649] ? __warn_printk+0xf3/0xf3 [ 725.885682][ T1649] ? lapic_can_unplug_cpu+0x80/0x80 [ 725.890914][ T1649] ? preempt_schedule_thunk+0x16/0x18 [ 725.896325][ T1649] ? nmi_trigger_cpumask_backtrace+0x196/0x230 [ 725.902548][ T1649] ? watchdog.cold+0x5/0x158 [ 725.907490][ T1649] watchdog.cold+0x16/0x158 [ 725.912066][ T1649] ? reset_hung_task_detector+0x30/0x30 [ 725.918005][ T1649] kthread+0x3b1/0x4a0 [ 725.922108][ T1649] ? kthread_create_worker_on_cpu+0xf0/0xf0 [ 725.930425][ T1649] ret_from_fork+0x1f/0x30 [ 725.935605][ T1649] Kernel Offset: disabled [ 725.939940][ T1649] Rebooting in 86400 seconds..