[ OK ] Started Getty on tty2. [ OK ] Started Serial Getty on ttyS0. [ OK ] Started Getty on tty1. [ OK ] Started getty on tty2-tty6 if dbus and logind are not available. [ OK ] Started OpenBSD Secure Shell server. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.37' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program syzkaller login: [ 845.335320][ T6868] netlink: 32 bytes leftover after parsing attributes in process `syz-executor923'. [ 1005.429615][ T1176] INFO: task syz-executor923:6868 blocked for more than 143 seconds. [ 1005.437799][ T1176] Not tainted 5.9.0-rc6-syzkaller #0 [ 1005.445616][ T1176] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 1005.455235][ T1176] task:syz-executor923 state:D stack:25784 pid: 6868 ppid: 6862 flags:0x00004004 [ 1005.465431][ T1176] Call Trace: [ 1005.468833][ T1176] __schedule+0xec9/0x2280 [ 1005.474718][ T1176] ? io_schedule_timeout+0x140/0x140 [ 1005.480845][ T1176] schedule+0xd0/0x2a0 [ 1005.484928][ T1176] schedule_preempt_disabled+0xf/0x20 [ 1005.491687][ T1176] __mutex_lock+0x3e2/0x10e0 [ 1005.496439][ T1176] ? tcf_action_init_1+0x85f/0xac0 [ 1005.502824][ T1176] ? mutex_lock_io_nested+0xf60/0xf60 [ 1005.508300][ T1176] ? lock_downgrade+0x830/0x830 [ 1005.515034][ T1176] tcf_action_init_1+0x85f/0xac0 [ 1005.521966][ T1176] ? tcf_action_dump_old+0x80/0x80 [ 1005.527142][ T1176] ? lock_is_held_type+0xbb/0xf0 [ 1005.533435][ T1176] ? find_held_lock+0x2d/0x110 [ 1005.538237][ T1176] tcf_action_init+0x265/0x4b0 [ 1005.544278][ T1176] ? tcf_action_init_1+0xac0/0xac0 [ 1005.550524][ T1176] tcf_action_add+0xd9/0x360 [ 1005.555127][ T1176] ? tca_action_gd+0xe20/0xe20 [ 1005.561151][ T1176] ? lock_acquire+0x1f3/0xaf0 [ 1005.566102][ T1176] ? bpf_lsm_capable+0x5/0x10 [ 1005.572161][ T1176] ? __nla_parse+0x3d/0x4a [ 1005.576595][ T1176] tc_ctl_action+0x33a/0x439 [ 1005.582543][ T1176] ? tcf_action_add+0x360/0x360 [ 1005.587422][ T1176] ? lock_is_held_type+0xbb/0xf0 [ 1005.594820][ T1176] ? tcf_action_add+0x360/0x360 [ 1005.600570][ T1176] rtnetlink_rcv_msg+0x44e/0xad0 [ 1005.605525][ T1176] ? rtnetlink_put_metrics+0x510/0x510 [ 1005.612306][ T1176] ? lock_acquire+0x1f3/0xaf0 [ 1005.617052][ T1176] ? netlink_deliver_tap+0x146/0xb70 [ 1005.623564][ T1176] netlink_rcv_skb+0x15a/0x430 [ 1005.628336][ T1176] ? rtnetlink_put_metrics+0x510/0x510 [ 1005.635216][ T1176] ? netlink_ack+0xa10/0xa10 [ 1005.640669][ T1176] ? __kmalloc_node_track_caller+0x38/0x60 [ 1005.646493][ T1176] netlink_unicast+0x533/0x7d0 [ 1005.653751][ T1176] ? netlink_attachskb+0x810/0x810 [ 1005.658942][ T1176] ? __phys_addr_symbol+0x2c/0x70 [ 1005.665265][ T1176] ? __check_object_size+0x171/0x3e4 [ 1005.671429][ T1176] netlink_sendmsg+0x856/0xd90 [ 1005.676204][ T1176] ? netlink_unicast+0x7d0/0x7d0 [ 1005.682402][ T1176] ? bpf_lsm_socket_sendmsg+0x5/0x10 [ 1005.687699][ T1176] ? netlink_unicast+0x7d0/0x7d0 [ 1005.694043][ T1176] sock_sendmsg+0xcf/0x120 [ 1005.698474][ T1176] ____sys_sendmsg+0x6e8/0x810 [ 1005.704817][ T1176] ? kernel_sendmsg+0x50/0x50 [ 1005.710572][ T1176] ? do_recvmmsg+0x6d0/0x6d0 [ 1005.715182][ T1176] ? lockdep_hardirqs_on_prepare+0x530/0x530 [ 1005.722428][ T1176] ? lock_is_held_type+0xbb/0xf0 [ 1005.727378][ T1176] ? find_held_lock+0x2d/0x110 [ 1005.733554][ T1176] ___sys_sendmsg+0xf3/0x170 [ 1005.738157][ T1176] ? sendmsg_copy_msghdr+0x160/0x160 [ 1005.744734][ T1176] ? __fget_files+0x272/0x400 [ 1005.750325][ T1176] ? lock_downgrade+0x830/0x830 [ 1005.755276][ T1176] ? do_huge_pmd_anonymous_page+0x8f2/0x2200 [ 1005.762724][ T1176] ? __fget_files+0x294/0x400 [ 1005.767417][ T1176] ? __fget_light+0xea/0x280 [ 1005.773322][ T1176] __sys_sendmsg+0xe5/0x1b0 [ 1005.777835][ T1176] ? __sys_sendmsg_sock+0xb0/0xb0 [ 1005.785279][ T1176] ? check_preemption_disabled+0x50/0x130 [ 1005.791919][ T1176] ? syscall_enter_from_user_mode+0x1d/0x60 [ 1005.797829][ T1176] do_syscall_64+0x2d/0x70 [ 1005.803475][ T1176] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 1005.811487][ T1176] RIP: 0033:0x446c19 [ 1005.815393][ T1176] Code: Bad RIP value. [ 1005.820619][ T1176] RSP: 002b:00007f7e9c86dd98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 1005.829040][ T1176] RAX: ffffffffffffffda RBX: 00000000006dbc28 RCX: 0000000000446c19 [ 1005.838391][ T1176] RDX: 0000000000000000 RSI: 0000000020002980 RDI: 0000000000000003 [ 1005.847198][ T1176] RBP: 00000000006dbc20 R08: 0000000000000000 R09: 0000000000000000 [ 1005.856104][ T1176] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dbc2c [ 1005.865046][ T1176] R13: 0001008400000000 R14: 0000000000e60000 R15: 053b003000000098 [ 1005.874067][ T1176] INFO: task syz-executor923:6881 blocked for more than 143 seconds. [ 1005.883028][ T1176] Not tainted 5.9.0-rc6-syzkaller #0 [ 1005.888835][ T1176] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 1005.900161][ T1176] task:syz-executor923 state:D stack:28880 pid: 6881 ppid: 6862 flags:0x00004004 [ 1005.911307][ T1176] Call Trace: [ 1005.914633][ T1176] __schedule+0xec9/0x2280 [ 1005.919056][ T1176] ? io_schedule_timeout+0x140/0x140 [ 1005.925810][ T1176] schedule+0xd0/0x2a0 [ 1005.930580][ T1176] schedule_preempt_disabled+0xf/0x20 [ 1005.935958][ T1176] __mutex_lock+0x3e2/0x10e0 [ 1005.941584][ T1176] ? rtnetlink_rcv_msg+0x3f9/0xad0 [ 1005.946712][ T1176] ? mutex_lock_io_nested+0xf60/0xf60 [ 1005.953121][ T1176] ? rtnetlink_rcv_msg+0x3c3/0xad0 [ 1005.958251][ T1176] ? lock_is_held_type+0xbb/0xf0 [ 1005.964476][ T1176] rtnetlink_rcv_msg+0x3f9/0xad0 [ 1005.970248][ T1176] ? rtnetlink_put_metrics+0x510/0x510 [ 1005.975713][ T1176] ? lock_acquire+0x1f3/0xaf0 [ 1005.981555][ T1176] ? netlink_deliver_tap+0x146/0xb70 [ 1005.986857][ T1176] netlink_rcv_skb+0x15a/0x430 [ 1005.992660][ T1176] ? rtnetlink_put_metrics+0x510/0x510 [ 1005.998136][ T1176] ? netlink_ack+0xa10/0xa10 [ 1006.003749][ T1176] ? __kmalloc_node_track_caller+0x38/0x60 [ 1006.010226][ T1176] netlink_unicast+0x533/0x7d0 [ 1006.015002][ T1176] ? netlink_attachskb+0x810/0x810 [ 1006.021137][ T1176] ? __phys_addr_symbol+0x2c/0x70 [ 1006.026313][ T1176] ? __check_object_size+0x171/0x3e4 [ 1006.033970][ T1176] netlink_sendmsg+0x856/0xd90 [ 1006.038763][ T1176] ? netlink_unicast+0x7d0/0x7d0 [ 1006.045837][ T1176] ? bpf_lsm_socket_sendmsg+0x5/0x10 [ 1006.051837][ T1176] ? netlink_unicast+0x7d0/0x7d0 [ 1006.056788][ T1176] sock_sendmsg+0xcf/0x120 [ 1006.062254][ T1176] ____sys_sendmsg+0x6e8/0x810 [ 1006.067052][ T1176] ? kernel_sendmsg+0x50/0x50 [ 1006.072864][ T1176] ? do_recvmmsg+0x6d0/0x6d0 [ 1006.077481][ T1176] ? lockdep_hardirqs_on_prepare+0x530/0x530 [ 1006.084609][ T1176] ? __lock_acquire+0xb92/0x5780 [ 1006.090265][ T1176] ___sys_sendmsg+0xf3/0x170 [ 1006.094871][ T1176] ? sendmsg_copy_msghdr+0x160/0x160 [ 1006.101235][ T1176] ? __fget_files+0x272/0x400 [ 1006.105933][ T1176] ? lock_downgrade+0x830/0x830 [ 1006.111938][ T1176] ? percpu_counter_add_batch+0x126/0x180 [ 1006.117682][ T1176] ? __fget_files+0x294/0x400 [ 1006.123423][ T1176] ? __fget_light+0xea/0x280 [ 1006.128032][ T1176] __sys_sendmsg+0xe5/0x1b0 [ 1006.133610][ T1176] ? __sys_sendmsg_sock+0xb0/0xb0 [ 1006.138663][ T1176] ? check_preemption_disabled+0x50/0x130 [ 1006.145528][ T1176] ? syscall_enter_from_user_mode+0x1d/0x60 [ 1006.152068][ T1176] do_syscall_64+0x2d/0x70 [ 1006.156490][ T1176] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 1006.163550][ T1176] RIP: 0033:0x446c19 [ 1006.167445][ T1176] Code: Bad RIP value. [ 1006.173680][ T1176] RSP: 002b:00007f7e9c84cd98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 1006.182903][ T1176] RAX: ffffffffffffffda RBX: 00000000006dbc38 RCX: 0000000000446c19 [ 1006.191530][ T1176] RDX: 0000000000000000 RSI: 0000000020002980 RDI: 0000000000000004 [ 1006.200258][ T1176] RBP: 00000000006dbc30 R08: 000000000000000d R09: 0000000000000000 [ 1006.208240][ T1176] R10: 0000000000000050 R11: 0000000000000246 R12: 00000000006dbc3c [ 1006.217303][ T1176] R13: 0001008400000000 R14: 0000000000e60000 R15: 053b003000000098 [ 1006.226134][ T1176] INFO: task syz-executor923:6877 blocked for more than 144 seconds. [ 1006.234978][ T1176] Not tainted 5.9.0-rc6-syzkaller #0 [ 1006.241470][ T1176] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 1006.250945][ T1176] task:syz-executor923 state:D stack:28656 pid: 6877 ppid: 6865 flags:0x00004004 [ 1006.260816][ T1176] Call Trace: [ 1006.264130][ T1176] __schedule+0xec9/0x2280 [ 1006.268552][ T1176] ? io_schedule_timeout+0x140/0x140 [ 1006.276539][ T1176] schedule+0xd0/0x2a0 [ 1006.281221][ T1176] schedule_preempt_disabled+0xf/0x20 [ 1006.286604][ T1176] __mutex_lock+0x3e2/0x10e0 [ 1006.292264][ T1176] ? rtnetlink_rcv_msg+0x3f9/0xad0 [ 1006.297391][ T1176] ? mutex_lock_io_nested+0xf60/0xf60 [ 1006.304974][ T1176] ? rtnetlink_rcv_msg+0x3c3/0xad0 [ 1006.310775][ T1176] ? lock_is_held_type+0xbb/0xf0 [ 1006.315729][ T1176] rtnetlink_rcv_msg+0x3f9/0xad0 [ 1006.321797][ T1176] ? rtnetlink_put_metrics+0x510/0x510 [ 1006.327275][ T1176] ? lock_acquire+0x1f3/0xaf0 [ 1006.333071][ T1176] ? netlink_deliver_tap+0x146/0xb70 [ 1006.338381][ T1176] netlink_rcv_skb+0x15a/0x430 [ 1006.344164][ T1176] ? rtnetlink_put_metrics+0x510/0x510 [ 1006.350439][ T1176] ? netlink_ack+0xa10/0xa10 [ 1006.355055][ T1176] ? __kmalloc_node_track_caller+0x38/0x60 [ 1006.361901][ T1176] netlink_unicast+0x533/0x7d0 [ 1006.366683][ T1176] ? netlink_attachskb+0x810/0x810 [ 1006.372923][ T1176] ? __phys_addr_symbol+0x2c/0x70 [ 1006.377974][ T1176] ? __check_object_size+0x171/0x3e4 [ 1006.384450][ T1176] netlink_sendmsg+0x856/0xd90 [ 1006.389251][ T1176] ? netlink_unicast+0x7d0/0x7d0 [ 1006.395498][ T1176] ? bpf_lsm_socket_sendmsg+0x5/0x10 [ 1006.401417][ T1176] ? netlink_unicast+0x7d0/0x7d0 [ 1006.406361][ T1176] sock_sendmsg+0xcf/0x120 [ 1006.411783][ T1176] ____sys_sendmsg+0x6e8/0x810 [ 1006.416557][ T1176] ? kernel_sendmsg+0x50/0x50 [ 1006.422220][ T1176] ? do_recvmmsg+0x6d0/0x6d0 [ 1006.426831][ T1176] ? lockdep_hardirqs_on_prepare+0x530/0x530 [ 1006.434999][ T1176] ? lock_is_held_type+0xbb/0xf0 [ 1006.440582][ T1176] ? find_held_lock+0x2d/0x110 [ 1006.445364][ T1176] ___sys_sendmsg+0xf3/0x170 [ 1006.451030][ T1176] ? sendmsg_copy_msghdr+0x160/0x160 [ 1006.456329][ T1176] ? __fget_files+0x272/0x400 [ 1006.462063][ T1176] ? lock_downgrade+0x830/0x830 [ 1006.466928][ T1176] ? do_huge_pmd_anonymous_page+0x8f2/0x2200 [ 1006.473975][ T1176] ? __fget_files+0x294/0x400 [ 1006.478675][ T1176] ? __fget_light+0xea/0x280 [ 1006.485797][ T1176] __sys_sendmsg+0xe5/0x1b0 [ 1006.490971][ T1176] ? __sys_sendmsg_sock+0xb0/0xb0 [ 1006.496020][ T1176] ? check_preemption_disabled+0x50/0x130 [ 1006.502793][ T1176] ? syscall_enter_from_user_mode+0x1d/0x60 [ 1006.508701][ T1176] do_syscall_64+0x2d/0x70 [ 1006.514135][ T1176] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 1006.520636][ T1176] RIP: 0033:0x446c19 [ 1006.524525][ T1176] Code: Bad RIP value. [ 1006.528585][ T1176] RSP: 002b:00007f7e9c86dd98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 1006.538571][ T1176] RAX: ffffffffffffffda RBX: 00000000006dbc28 RCX: 0000000000446c19 [ 1006.547352][ T1176] RDX: 0000000000000000 RSI: 0000000020002980 RDI: 0000000000000003 [ 1006.556132][ T1176] RBP: 00000000006dbc20 R08: 0000000000000000 R09: 0000000000000000 [ 1006.566002][ T1176] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dbc2c [ 1006.574719][ T1176] R13: 0001008400000000 R14: 0000000000e60000 R15: 053b003000000098 [ 1006.583374][ T1176] INFO: task syz-executor923:6883 blocked for more than 144 seconds. [ 1006.592134][ T1176] Not tainted 5.9.0-rc6-syzkaller #0 [ 1006.597937][ T1176] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 1006.607879][ T1176] task:syz-executor923 state:D stack:28904 pid: 6883 ppid: 6865 flags:0x00000004 [ 1006.617786][ T1176] Call Trace: [ 1006.621696][ T1176] __schedule+0xec9/0x2280 [ 1006.626130][ T1176] ? io_schedule_timeout+0x140/0x140 [ 1006.632564][ T1176] schedule+0xd0/0x2a0 [ 1006.636649][ T1176] schedule_preempt_disabled+0xf/0x20 [ 1006.643135][ T1176] __mutex_lock+0x3e2/0x10e0 [ 1006.647741][ T1176] ? rtnetlink_rcv_msg+0x3f9/0xad0 [ 1006.653978][ T1176] ? mutex_lock_io_nested+0xf60/0xf60 [ 1006.660012][ T1176] ? rtnetlink_rcv_msg+0x3c3/0xad0 [ 1006.665145][ T1176] ? lock_is_held_type+0xbb/0xf0 [ 1006.671122][ T1176] rtnetlink_rcv_msg+0x3f9/0xad0 [ 1006.676078][ T1176] ? rtnetlink_put_metrics+0x510/0x510 [ 1006.682603][ T1176] ? lock_acquire+0x1f3/0xaf0 [ 1006.687287][ T1176] ? netlink_deliver_tap+0x146/0xb70 [ 1006.694758][ T1176] netlink_rcv_skb+0x15a/0x430 [ 1006.700138][ T1176] ? rtnetlink_put_metrics+0x510/0x510 [ 1006.705604][ T1176] ? netlink_ack+0xa10/0xa10 [ 1006.711295][ T1176] ? __kmalloc_node_track_caller+0x38/0x60 [ 1006.717117][ T1176] netlink_unicast+0x533/0x7d0 [ 1006.723895][ T1176] ? netlink_attachskb+0x810/0x810 [ 1006.729021][ T1176] ? __phys_addr_symbol+0x2c/0x70 [ 1006.735092][ T1176] ? __check_object_size+0x171/0x3e4 [ 1006.741200][ T1176] netlink_sendmsg+0x856/0xd90 [ 1006.745994][ T1176] ? netlink_unicast+0x7d0/0x7d0 [ 1006.752056][ T1176] ? bpf_lsm_socket_sendmsg+0x5/0x10 [ 1006.757352][ T1176] ? netlink_unicast+0x7d0/0x7d0 [ 1006.763316][ T1176] sock_sendmsg+0xcf/0x120 [ 1006.767743][ T1176] ____sys_sendmsg+0x6e8/0x810 [ 1006.773540][ T1176] ? kernel_sendmsg+0x50/0x50 [ 1006.778229][ T1176] ? do_recvmmsg+0x6d0/0x6d0 [ 1006.783820][ T1176] ? lockdep_hardirqs_on_prepare+0x530/0x530 [ 1006.790502][ T1176] ? __lock_acquire+0xb92/0x5780 [ 1006.795454][ T1176] ___sys_sendmsg+0xf3/0x170 [ 1006.801079][ T1176] ? sendmsg_copy_msghdr+0x160/0x160 [ 1006.806378][ T1176] ? __fget_files+0x272/0x400 [ 1006.812263][ T1176] ? lock_downgrade+0x830/0x830 [ 1006.817117][ T1176] ? percpu_counter_add_batch+0x126/0x180 [ 1006.825110][ T1176] ? __fget_files+0x294/0x400 [ 1006.830495][ T1176] ? __fget_light+0xea/0x280 [ 1006.835117][ T1176] __sys_sendmsg+0xe5/0x1b0 [ 1006.840649][ T1176] ? __sys_sendmsg_sock+0xb0/0xb0 [ 1006.845702][ T1176] ? check_preemption_disabled+0x50/0x130 [ 1006.852463][ T1176] ? syscall_enter_from_user_mode+0x1d/0x60 [ 1006.858374][ T1176] do_syscall_64+0x2d/0x70 [ 1006.863876][ T1176] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 1006.870523][ T1176] RIP: 0033:0x446c19 [ 1006.874416][ T1176] Code: Bad RIP value. [ 1006.878476][ T1176] RSP: 002b:00007f7e9c84cd98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 1006.888348][ T1176] RAX: ffffffffffffffda RBX: 00000000006dbc38 RCX: 0000000000446c19 [ 1006.897211][ T1176] RDX: 0000000000000000 RSI: 0000000020002980 RDI: 0000000000000004 [ 1006.905928][ T1176] RBP: 00000000006dbc30 R08: 000000000000000d R09: 0000000000000000 [ 1006.914579][ T1176] R10: 0000000000000050 R11: 0000000000000246 R12: 00000000006dbc3c [ 1006.923214][ T1176] R13: 0001008400000000 R14: 0000000000e60000 R15: 053b003000000098 [ 1006.931921][ T1176] INFO: task syz-executor923:6882 blocked for more than 144 seconds. [ 1006.942879][ T1176] Not tainted 5.9.0-rc6-syzkaller #0 [ 1006.948727][ T1176] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 1006.959648][ T1176] task:syz-executor923 state:D stack:28904 pid: 6882 ppid: 6867 flags:0x00000004 [ 1006.968871][ T1176] Call Trace: [ 1006.973253][ T1176] __schedule+0xec9/0x2280 [ 1006.977691][ T1176] ? io_schedule_timeout+0x140/0x140 [ 1006.983996][ T1176] schedule+0xd0/0x2a0 [ 1006.988076][ T1176] schedule_preempt_disabled+0xf/0x20 [ 1006.994522][ T1176] __mutex_lock+0x3e2/0x10e0 [ 1006.999123][ T1176] ? rtnetlink_rcv_msg+0x3f9/0xad0 [ 1007.005412][ T1176] ? mutex_lock_io_nested+0xf60/0xf60 [ 1007.011487][ T1176] ? rtnetlink_rcv_msg+0x3c3/0xad0 [ 1007.016619][ T1176] ? lock_is_held_type+0xbb/0xf0 [ 1007.022875][ T1176] rtnetlink_rcv_msg+0x3f9/0xad0 [ 1007.027820][ T1176] ? rtnetlink_put_metrics+0x510/0x510 [ 1007.034363][ T1176] ? lock_acquire+0x1f3/0xaf0 [ 1007.039047][ T1176] ? netlink_deliver_tap+0x146/0xb70 [ 1007.045340][ T1176] netlink_rcv_skb+0x15a/0x430 [ 1007.050754][ T1176] ? rtnetlink_put_metrics+0x510/0x510 [ 1007.056235][ T1176] ? netlink_ack+0xa10/0xa10 [ 1007.062019][ T1176] ? __kmalloc_node_track_caller+0x38/0x60 [ 1007.067858][ T1176] netlink_unicast+0x533/0x7d0 [ 1007.075336][ T1176] ? netlink_attachskb+0x810/0x810 [ 1007.081160][ T1176] ? __phys_addr_symbol+0x2c/0x70 [ 1007.086193][ T1176] ? __check_object_size+0x171/0x3e4 [ 1007.093770][ T1176] netlink_sendmsg+0x856/0xd90 [ 1007.098563][ T1176] ? netlink_unicast+0x7d0/0x7d0 [ 1007.104720][ T1176] ? bpf_lsm_socket_sendmsg+0x5/0x10 [ 1007.110707][ T1176] ? netlink_unicast+0x7d0/0x7d0 [ 1007.115657][ T1176] sock_sendmsg+0xcf/0x120 [ 1007.121132][ T1176] ____sys_sendmsg+0x6e8/0x810 [ 1007.125911][ T1176] ? kernel_sendmsg+0x50/0x50 [ 1007.131694][ T1176] ? do_recvmmsg+0x6d0/0x6d0 [ 1007.136304][ T1176] ? lockdep_hardirqs_on_prepare+0x530/0x530 [ 1007.144358][ T1176] ? __lock_acquire+0xb92/0x5780 [ 1007.149940][ T1176] ___sys_sendmsg+0xf3/0x170 [ 1007.154542][ T1176] ? sendmsg_copy_msghdr+0x160/0x160 [ 1007.160898][ T1176] ? __fget_files+0x272/0x400 [ 1007.165589][ T1176] ? lock_downgrade+0x830/0x830 [ 1007.171483][ T1176] ? percpu_counter_add_batch+0x126/0x180 [ 1007.177227][ T1176] ? __fget_files+0x294/0x400 [ 1007.182930][ T1176] ? __fget_light+0xea/0x280 [ 1007.187539][ T1176] __sys_sendmsg+0xe5/0x1b0 [ 1007.193166][ T1176] ? __sys_sendmsg_sock+0xb0/0xb0 [ 1007.198273][ T1176] ? __x64_sys_futex+0x382/0x4e0 [ 1007.204348][ T1176] ? check_preemption_disabled+0x50/0x130 [ 1007.210794][ T1176] ? syscall_enter_from_user_mode+0x1d/0x60 [ 1007.216712][ T1176] do_syscall_64+0x2d/0x70 [ 1007.223304][ T1176] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 1007.230043][ T1176] RIP: 0033:0x446c19 [ 1007.233933][ T1176] Code: Bad RIP value. [ 1007.237991][ T1176] RSP: 002b:00007f7e9c84cd98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 1007.247851][ T1176] RAX: ffffffffffffffda RBX: 00000000006dbc38 RCX: 0000000000446c19 [ 1007.256505][ T1176] RDX: 0000000000000000 RSI: 0000000020002980 RDI: 0000000000000004 [ 1007.265274][ T1176] RBP: 00000000006dbc30 R08: 000000000000000d R09: 0000000000000000 [ 1007.274009][ T1176] R10: 0000000000000050 R11: 0000000000000246 R12: 00000000006dbc3c [ 1007.282628][ T1176] R13: 0001008400000000 R14: 0000000000e60000 R15: 053b003000000098 [ 1007.291359][ T1176] INFO: task syz-executor923:6878 blocked for more than 145 seconds. [ 1007.301072][ T1176] Not tainted 5.9.0-rc6-syzkaller #0 [ 1007.306879][ T1176] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 1007.316735][ T1176] task:syz-executor923 state:D stack:28904 pid: 6878 ppid: 6869 flags:0x00004004 [ 1007.326633][ T1176] Call Trace: [ 1007.330589][ T1176] __schedule+0xec9/0x2280 [ 1007.335022][ T1176] ? io_schedule_timeout+0x140/0x140 [ 1007.341356][ T1176] schedule+0xd0/0x2a0 [ 1007.345439][ T1176] schedule_preempt_disabled+0xf/0x20 [ 1007.352999][ T1176] __mutex_lock+0x3e2/0x10e0 [ 1007.357606][ T1176] ? rtnetlink_rcv_msg+0x3f9/0xad0 [ 1007.365035][ T1176] ? mutex_lock_io_nested+0xf60/0xf60 [ 1007.371094][ T1176] ? rtnetlink_rcv_msg+0x3c3/0xad0 [ 1007.376225][ T1176] ? lock_is_held_type+0xbb/0xf0 [ 1007.382172][ T1176] rtnetlink_rcv_msg+0x3f9/0xad0 [ 1007.387121][ T1176] ? rtnetlink_put_metrics+0x510/0x510 [ 1007.393619][ T1176] ? lock_acquire+0x1f3/0xaf0 [ 1007.398306][ T1176] ? netlink_deliver_tap+0x146/0xb70 [ 1007.404677][ T1176] netlink_rcv_skb+0x15a/0x430 [ 1007.410218][ T1176] ? rtnetlink_put_metrics+0x510/0x510 [ 1007.415689][ T1176] ? netlink_ack+0xa10/0xa10 [ 1007.421305][ T1176] ? __kmalloc_node_track_caller+0x38/0x60 [ 1007.427127][ T1176] netlink_unicast+0x533/0x7d0 [ 1007.433015][ T1176] ? netlink_attachskb+0x810/0x810 [ 1007.438139][ T1176] ? __phys_addr_symbol+0x2c/0x70 [ 1007.444426][ T1176] ? __check_object_size+0x171/0x3e4 [ 1007.450365][ T1176] netlink_sendmsg+0x856/0xd90 [ 1007.455145][ T1176] ? netlink_unicast+0x7d0/0x7d0 [ 1007.461176][ T1176] ? bpf_lsm_socket_sendmsg+0x5/0x10 [ 1007.466476][ T1176] ? netlink_unicast+0x7d0/0x7d0 [ 1007.472476][ T1176] sock_sendmsg+0xcf/0x120 [ 1007.476909][ T1176] ____sys_sendmsg+0x6e8/0x810 [ 1007.483823][ T1176] ? kernel_sendmsg+0x50/0x50 [ 1007.488511][ T1176] ? do_recvmmsg+0x6d0/0x6d0 [ 1007.494228][ T1176] ? lockdep_hardirqs_on_prepare+0x530/0x530 [ 1007.500858][ T1176] ? lock_is_held_type+0xbb/0xf0 [ 1007.505813][ T1176] ? find_held_lock+0x2d/0x110 [ 1007.512111][ T1176] ___sys_sendmsg+0xf3/0x170 [ 1007.516720][ T1176] ? sendmsg_copy_msghdr+0x160/0x160 [ 1007.523103][ T1176] ? __fget_files+0x272/0x400 [ 1007.527796][ T1176] ? lock_downgrade+0x830/0x830 [ 1007.533933][ T1176] ? do_huge_pmd_anonymous_page+0x8f2/0x2200 [ 1007.540611][ T1176] ? __fget_files+0x294/0x400 [ 1007.545304][ T1176] ? __fget_light+0xea/0x280 [ 1007.550981][ T1176] __sys_sendmsg+0xe5/0x1b0 [ 1007.555498][ T1176] ? __sys_sendmsg_sock+0xb0/0xb0 [ 1007.561620][ T1176] ? check_preemption_disabled+0x50/0x130 [ 1007.567351][ T1176] ? syscall_enter_from_user_mode+0x1d/0x60 [ 1007.575525][ T1176] do_syscall_64+0x2d/0x70 [ 1007.580542][ T1176] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 1007.586440][ T1176] RIP: 0033:0x446c19 [ 1007.591431][ T1176] Code: Bad RIP value. [ 1007.595504][ T1176] RSP: 002b:00007f7e9c86dd98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 1007.604968][ T1176] RAX: ffffffffffffffda RBX: 00000000006dbc28 RCX: 0000000000446c19 [ 1007.614709][ T1176] RDX: 0000000000000000 RSI: 0000000020002980 RDI: 0000000000000003 [ 1007.623389][ T1176] RBP: 00000000006dbc20 R08: 0000000000000000 R09: 0000000000000000 [ 1007.632089][ T1176] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dbc2c [ 1007.640710][ T1176] R13: 0001008400000000 R14: 0000000000e60000 R15: 053b003000000098 [ 1007.648737][ T1176] INFO: task syz-executor923:6884 blocked for more than 145 seconds. [ 1007.658942][ T1176] Not tainted 5.9.0-rc6-syzkaller #0 [ 1007.665432][ T1176] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 1007.674881][ T1176] task:syz-executor923 state:D stack:28904 pid: 6884 ppid: 6869 flags:0x00000004 [ 1007.684733][ T1176] Call Trace: [ 1007.688041][ T1176] __schedule+0xec9/0x2280 [ 1007.693556][ T1176] ? io_schedule_timeout+0x140/0x140 [ 1007.698862][ T1176] schedule+0xd0/0x2a0 [ 1007.703936][ T1176] schedule_preempt_disabled+0xf/0x20 [ 1007.709974][ T1176] __mutex_lock+0x3e2/0x10e0 [ 1007.714574][ T1176] ? rtnetlink_rcv_msg+0x3f9/0xad0 [ 1007.720727][ T1176] ? mutex_lock_io_nested+0xf60/0xf60 [ 1007.726110][ T1176] ? rtnetlink_rcv_msg+0x3c3/0xad0 [ 1007.732328][ T1176] ? lock_is_held_type+0xbb/0xf0 [ 1007.737284][ T1176] rtnetlink_rcv_msg+0x3f9/0xad0 [ 1007.744361][ T1176] ? rtnetlink_put_metrics+0x510/0x510 [ 1007.750807][ T1176] ? lock_acquire+0x1f3/0xaf0 [ 1007.755495][ T1176] ? netlink_deliver_tap+0x146/0xb70 [ 1007.761874][ T1176] netlink_rcv_skb+0x15a/0x430 [ 1007.766654][ T1176] ? rtnetlink_put_metrics+0x510/0x510 [ 1007.773171][ T1176] ? netlink_ack+0xa10/0xa10 [ 1007.777800][ T1176] ? __kmalloc_node_track_caller+0x38/0x60 [ 1007.784697][ T1176] netlink_unicast+0x533/0x7d0 [ 1007.790130][ T1176] ? netlink_attachskb+0x810/0x810 [ 1007.795252][ T1176] ? __phys_addr_symbol+0x2c/0x70 [ 1007.802800][ T1176] ? __check_object_size+0x171/0x3e4 [ 1007.808114][ T1176] netlink_sendmsg+0x856/0xd90 [ 1007.813950][ T1176] ? netlink_unicast+0x7d0/0x7d0 [ 1007.818907][ T1176] ? bpf_lsm_socket_sendmsg+0x5/0x10 [ 1007.825288][ T1176] ? netlink_unicast+0x7d0/0x7d0 [ 1007.830909][ T1176] sock_sendmsg+0xcf/0x120 [ 1007.835337][ T1176] ____sys_sendmsg+0x6e8/0x810 [ 1007.841271][ T1176] ? kernel_sendmsg+0x50/0x50 [ 1007.845965][ T1176] ? do_recvmmsg+0x6d0/0x6d0 [ 1007.851698][ T1176] ? lockdep_hardirqs_on_prepare+0x530/0x530 [ 1007.858304][ T1176] ? __lock_acquire+0xb92/0x5780 [ 1007.864515][ T1176] ___sys_sendmsg+0xf3/0x170 [ 1007.871044][ T1176] ? sendmsg_copy_msghdr+0x160/0x160 [ 1007.876349][ T1176] ? __fget_files+0x272/0x400 [ 1007.882195][ T1176] ? lock_downgrade+0x830/0x830 [ 1007.887076][ T1176] ? percpu_counter_add_batch+0x126/0x180 [ 1007.894030][ T1176] ? __fget_files+0x294/0x400 [ 1007.898747][ T1176] ? __fget_light+0xea/0x280 [ 1007.904605][ T1176] __sys_sendmsg+0xe5/0x1b0 [ 1007.909827][ T1176] ? __sys_sendmsg_sock+0xb0/0xb0 [ 1007.914879][ T1176] ? check_preemption_disabled+0x50/0x130 [ 1007.921700][ T1176] ? syscall_enter_from_user_mode+0x1d/0x60 [ 1007.927610][ T1176] do_syscall_64+0x2d/0x70 [ 1007.933180][ T1176] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 1007.939732][ T1176] RIP: 0033:0x446c19 [ 1007.943662][ T1176] Code: Bad RIP value. [ 1007.947723][ T1176] RSP: 002b:00007f7e9c84cd98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 1007.957629][ T1176] RAX: ffffffffffffffda RBX: 00000000006dbc38 RCX: 0000000000446c19 [ 1007.966303][ T1176] RDX: 0000000000000000 RSI: 0000000020002980 RDI: 0000000000000004 [ 1007.974975][ T1176] RBP: 00000000006dbc30 R08: 000000000000000d R09: 0000000000000000 [ 1007.983854][ T1176] R10: 0000000000000050 R11: 0000000000000246 R12: 00000000006dbc3c [ 1007.992614][ T1176] R13: 0001008400000000 R14: 0000000000e60000 R15: 053b003000000098 [ 1008.002406][ T1176] INFO: task syz-executor923:6876 blocked for more than 145 seconds. [ 1008.012134][ T1176] Not tainted 5.9.0-rc6-syzkaller #0 [ 1008.017940][ T1176] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 1008.029779][ T1176] task:syz-executor923 state:D stack:28904 pid: 6876 ppid: 6866 flags:0x00004004 [ 1008.038998][ T1176] Call Trace: [ 1008.043382][ T1176] __schedule+0xec9/0x2280 [ 1008.047833][ T1176] ? io_schedule_timeout+0x140/0x140 [ 1008.054215][ T1176] schedule+0xd0/0x2a0 [ 1008.058315][ T1176] schedule_preempt_disabled+0xf/0x20 [ 1008.065015][ T1176] __mutex_lock+0x3e2/0x10e0 [ 1008.070558][ T1176] ? rtnetlink_rcv_msg+0x3f9/0xad0 [ 1008.075682][ T1176] ? mutex_lock_io_nested+0xf60/0xf60 [ 1008.082116][ T1176] ? rtnetlink_rcv_msg+0x3c3/0xad0 [ 1008.087251][ T1176] ? lock_is_held_type+0xbb/0xf0 [ 1008.093229][ T1176] rtnetlink_rcv_msg+0x3f9/0xad0 [ 1008.098180][ T1176] ? rtnetlink_put_metrics+0x510/0x510 [ 1008.104784][ T1176] ? lock_acquire+0x1f3/0xaf0 [ 1008.110125][ T1176] ? netlink_deliver_tap+0x146/0xb70 [ 1008.115425][ T1176] netlink_rcv_skb+0x15a/0x430 [ 1008.121252][ T1176] ? rtnetlink_put_metrics+0x510/0x510 [ 1008.126722][ T1176] ? netlink_ack+0xa10/0xa10 [ 1008.133551][ T1176] ? __kmalloc_node_track_caller+0x38/0x60 [ 1008.140037][ T1176] netlink_unicast+0x533/0x7d0 [ 1008.144819][ T1176] ? netlink_attachskb+0x810/0x810 [ 1008.150990][ T1176] ? __phys_addr_symbol+0x2c/0x70 [ 1008.156029][ T1176] ? __check_object_size+0x171/0x3e4 [ 1008.162349][ T1176] netlink_sendmsg+0x856/0xd90 [ 1008.167132][ T1176] ? netlink_unicast+0x7d0/0x7d0 [ 1008.173198][ T1176] ? bpf_lsm_socket_sendmsg+0x5/0x10 [ 1008.178497][ T1176] ? netlink_unicast+0x7d0/0x7d0 [ 1008.184557][ T1176] sock_sendmsg+0xcf/0x120 [ 1008.188984][ T1176] ____sys_sendmsg+0x6e8/0x810 [ 1008.194804][ T1176] ? kernel_sendmsg+0x50/0x50 [ 1008.200207][ T1176] ? do_recvmmsg+0x6d0/0x6d0 [ 1008.204814][ T1176] ? lockdep_hardirqs_on_prepare+0x530/0x530 [ 1008.211874][ T1176] ? lock_is_held_type+0xbb/0xf0 [ 1008.216825][ T1176] ? find_held_lock+0x2d/0x110 [ 1008.222661][ T1176] ___sys_sendmsg+0xf3/0x170 [ 1008.227261][ T1176] ? sendmsg_copy_msghdr+0x160/0x160 [ 1008.234896][ T1176] ? __fget_files+0x272/0x400 [ 1008.240275][ T1176] ? lock_downgrade+0x830/0x830 [ 1008.245137][ T1176] ? do_huge_pmd_anonymous_page+0x8f2/0x2200 [ 1008.252299][ T1176] ? __fget_files+0x294/0x400 [ 1008.256998][ T1176] ? __fget_light+0xea/0x280 [ 1008.263747][ T1176] __sys_sendmsg+0xe5/0x1b0 [ 1008.268267][ T1176] ? __sys_sendmsg_sock+0xb0/0xb0 [ 1008.274469][ T1176] ? check_preemption_disabled+0x50/0x130 [ 1008.281030][ T1176] ? syscall_enter_from_user_mode+0x1d/0x60 [ 1008.286932][ T1176] do_syscall_64+0x2d/0x70 [ 1008.292397][ T1176] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 1008.298298][ T1176] RIP: 0033:0x446c19 [ 1008.303265][ T1176] Code: Bad RIP value. [ 1008.307339][ T1176] RSP: 002b:00007f7e9c86dd98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 1008.316831][ T1176] RAX: ffffffffffffffda RBX: 00000000006dbc28 RCX: 0000000000446c19 [ 1008.325660][ T1176] RDX: 0000000000000000 RSI: 0000000020002980 RDI: 0000000000000003 [ 1008.334416][ T1176] RBP: 00000000006dbc20 R08: 0000000000000000 R09: 0000000000000000 [ 1008.343034][ T1176] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dbc2c [ 1008.351671][ T1176] R13: 0001008400000000 R14: 0000000000e60000 R15: 053b003000000098 [ 1008.360330][ T1176] INFO: task syz-executor923:6885 blocked for more than 146 seconds. [ 1008.374005][ T1176] Not tainted 5.9.0-rc6-syzkaller #0 [ 1008.380503][ T1176] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 1008.390948][ T1176] task:syz-executor923 state:D stack:28904 pid: 6885 ppid: 6866 flags:0x00000004 [ 1008.400875][ T1176] Call Trace: [ 1008.404183][ T1176] __schedule+0xec9/0x2280 [ 1008.408865][ T1176] ? io_schedule_timeout+0x140/0x140 [ 1008.415659][ T1176] schedule+0xd0/0x2a0 [ 1008.420368][ T1176] schedule_preempt_disabled+0xf/0x20 [ 1008.425747][ T1176] __mutex_lock+0x3e2/0x10e0 [ 1008.431433][ T1176] ? rtnetlink_rcv_msg+0x3f9/0xad0 [ 1008.436558][ T1176] ? mutex_lock_io_nested+0xf60/0xf60 [ 1008.442981][ T1176] ? rtnetlink_rcv_msg+0x3c3/0xad0 [ 1008.448116][ T1176] ? lock_is_held_type+0xbb/0xf0 [ 1008.454119][ T1176] rtnetlink_rcv_msg+0x3f9/0xad0 [ 1008.460988][ T1176] ? rtnetlink_put_metrics+0x510/0x510 [ 1008.466466][ T1176] ? lock_acquire+0x1f3/0xaf0 [ 1008.472180][ T1176] ? netlink_deliver_tap+0x146/0xb70 [ 1008.477482][ T1176] netlink_rcv_skb+0x15a/0x430 [ 1008.483323][ T1176] ? rtnetlink_put_metrics+0x510/0x510 [ 1008.488794][ T1176] ? netlink_ack+0xa10/0xa10 [ 1008.494790][ T1176] ? __kmalloc_node_track_caller+0x38/0x60 [ 1008.501381][ T1176] netlink_unicast+0x533/0x7d0 [ 1008.506162][ T1176] ? netlink_attachskb+0x810/0x810 [ 1008.512389][ T1176] ? __phys_addr_symbol+0x2c/0x70 [ 1008.517425][ T1176] ? __check_object_size+0x171/0x3e4 [ 1008.524868][ T1176] netlink_sendmsg+0x856/0xd90 [ 1008.530384][ T1176] ? netlink_unicast+0x7d0/0x7d0 [ 1008.535341][ T1176] ? bpf_lsm_socket_sendmsg+0x5/0x10 [ 1008.541713][ T1176] ? netlink_unicast+0x7d0/0x7d0 [ 1008.546662][ T1176] sock_sendmsg+0xcf/0x120 [ 1008.552294][ T1176] ____sys_sendmsg+0x6e8/0x810 [ 1008.557083][ T1176] ? kernel_sendmsg+0x50/0x50 [ 1008.562812][ T1176] ? do_recvmmsg+0x6d0/0x6d0 [ 1008.567421][ T1176] ? lockdep_hardirqs_on_prepare+0x530/0x530 [ 1008.574573][ T1176] ? __lock_acquire+0xb92/0x5780 [ 1008.580149][ T1176] ___sys_sendmsg+0xf3/0x170 [ 1008.584747][ T1176] ? sendmsg_copy_msghdr+0x160/0x160 [ 1008.591231][ T1176] ? __fget_files+0x272/0x400 [ 1008.595926][ T1176] ? lock_downgrade+0x830/0x830 [ 1008.601874][ T1176] ? percpu_counter_add_batch+0x126/0x180 [ 1008.607618][ T1176] ? __fget_files+0x294/0x400 [ 1008.613439][ T1176] ? __fget_light+0xea/0x280 [ 1008.618055][ T1176] __sys_sendmsg+0xe5/0x1b0 [ 1008.623596][ T1176] ? __sys_sendmsg_sock+0xb0/0xb0 [ 1008.628627][ T1176] ? __x64_sys_futex+0x382/0x4e0 [ 1008.634649][ T1176] ? check_preemption_disabled+0x50/0x130 [ 1008.641029][ T1176] ? syscall_enter_from_user_mode+0x1d/0x60 [ 1008.646949][ T1176] do_syscall_64+0x2d/0x70 [ 1008.653612][ T1176] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 1008.660139][ T1176] RIP: 0033:0x446c19 [ 1008.664038][ T1176] Code: Bad RIP value. [ 1008.668103][ T1176] RSP: 002b:00007f7e9c84cd98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 1008.679320][ T1176] RAX: ffffffffffffffda RBX: 00000000006dbc38 RCX: 0000000000446c19 [ 1008.687312][ T1176] RDX: 0000000000000000 RSI: 0000000020002980 RDI: 0000000000000004 [ 1008.696461][ T1176] RBP: 00000000006dbc30 R08: 000000000000000d R09: 0000000000000000 [ 1008.705331][ T1176] R10: 0000000000000050 R11: 0000000000000246 R12: 00000000006dbc3c [ 1008.714055][ T1176] R13: 0001008400000000 R14: 0000000000e60000 R15: 053b003000000098 [ 1008.722738][ T1176] INFO: task syz-executor923:6879 blocked for more than 146 seconds. [ 1008.732462][ T1176] Not tainted 5.9.0-rc6-syzkaller #0 [ 1008.738268][ T1176] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 1008.748033][ T1176] task:syz-executor923 state:D stack:28904 pid: 6879 ppid: 6863 flags:0x00004004 [ 1008.757957][ T1176] Call Trace: [ 1008.761884][ T1176] __schedule+0xec9/0x2280 [ 1008.766364][ T1176] ? io_schedule_timeout+0x140/0x140 [ 1008.772751][ T1176] schedule+0xd0/0x2a0 [ 1008.776834][ T1176] schedule_preempt_disabled+0xf/0x20 [ 1008.784397][ T1176] __mutex_lock+0x3e2/0x10e0 [ 1008.789655][ T1176] ? rtnetlink_rcv_msg+0x3f9/0xad0 [ 1008.794781][ T1176] ? mutex_lock_io_nested+0xf60/0xf60 [ 1008.801271][ T1176] ? rtnetlink_rcv_msg+0x3c3/0xad0 [ 1008.806410][ T1176] ? lock_is_held_type+0xbb/0xf0 [ 1008.812409][ T1176] rtnetlink_rcv_msg+0x3f9/0xad0 [ 1008.817357][ T1176] ? rtnetlink_put_metrics+0x510/0x510 [ 1008.823955][ T1176] ? lock_acquire+0x1f3/0xaf0 [ 1008.828644][ T1176] ? netlink_deliver_tap+0x146/0xb70 [ 1008.835049][ T1176] netlink_rcv_skb+0x15a/0x430 [ 1008.840445][ T1176] ? rtnetlink_put_metrics+0x510/0x510 [ 1008.845912][ T1176] ? netlink_ack+0xa10/0xa10 [ 1008.851741][ T1176] ? __kmalloc_node_track_caller+0x38/0x60 [ 1008.857567][ T1176] netlink_unicast+0x533/0x7d0 [ 1008.863403][ T1176] ? netlink_attachskb+0x810/0x810 [ 1008.868547][ T1176] ? __phys_addr_symbol+0x2c/0x70 [ 1008.874788][ T1176] ? __check_object_size+0x171/0x3e4 [ 1008.880780][ T1176] netlink_sendmsg+0x856/0xd90 [ 1008.885563][ T1176] ? netlink_unicast+0x7d0/0x7d0 [ 1008.892780][ T1176] ? bpf_lsm_socket_sendmsg+0x5/0x10 [ 1008.898108][ T1176] ? netlink_unicast+0x7d0/0x7d0 [ 1008.904141][ T1176] sock_sendmsg+0xcf/0x120 [ 1008.908574][ T1176] ____sys_sendmsg+0x6e8/0x810 [ 1008.915688][ T1176] ? kernel_sendmsg+0x50/0x50 [ 1008.921001][ T1176] ? do_recvmmsg+0x6d0/0x6d0 [ 1008.925615][ T1176] ? lockdep_hardirqs_on_prepare+0x530/0x530 [ 1008.932711][ T1176] ? lock_is_held_type+0xbb/0xf0 [ 1008.937663][ T1176] ? find_held_lock+0x2d/0x110 [ 1008.943472][ T1176] ___sys_sendmsg+0xf3/0x170 [ 1008.948079][ T1176] ? sendmsg_copy_msghdr+0x160/0x160 [ 1008.954425][ T1176] ? __fget_files+0x272/0x400 [ 1008.959744][ T1176] ? lock_downgrade+0x830/0x830 [ 1008.964611][ T1176] ? do_huge_pmd_anonymous_page+0x8f2/0x2200 [ 1008.971707][ T1176] ? __fget_files+0x294/0x400 [ 1008.976404][ T1176] ? __fget_light+0xea/0x280 [ 1008.982019][ T1176] __sys_sendmsg+0xe5/0x1b0 [ 1008.986555][ T1176] ? __sys_sendmsg_sock+0xb0/0xb0 [ 1008.992677][ T1176] ? check_preemption_disabled+0x50/0x130 [ 1008.998408][ T1176] ? syscall_enter_from_user_mode+0x1d/0x60 [ 1009.005500][ T1176] do_syscall_64+0x2d/0x70 [ 1009.010573][ T1176] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 1009.016478][ T1176] RIP: 0033:0x446c19 [ 1009.021404][ T1176] Code: Bad RIP value. [ 1009.025477][ T1176] RSP: 002b:00007f7e9c86dd98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 1009.035080][ T1176] RAX: ffffffffffffffda RBX: 00000000006dbc28 RCX: 0000000000446c19 [ 1009.044928][ T1176] RDX: 0000000000000000 RSI: 0000000020002980 RDI: 0000000000000003 [ 1009.053887][ T1176] RBP: 00000000006dbc20 R08: 0000000000000000 R09: 0000000000000000 [ 1009.062525][ T1176] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dbc2c [ 1009.071209][ T1176] R13: 0001008400000000 R14: 0000000000e60000 R15: 053b003000000098 [ 1009.079871][ T1176] [ 1009.079871][ T1176] Showing all locks held in the system: [ 1009.087592][ T1176] 1 lock held by khungtaskd/1176: [ 1009.094678][ T1176] #0: ffffffff8a067f00 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x260 [ 1009.105222][ T1176] 1 lock held by in:imklog/6548: [ 1009.112224][ T1176] #0: ffff8880962a9870 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0xe9/0x100 [ 1009.122417][ T1176] 3 locks held by kworker/1:1/6854: [ 1009.127635][ T1176] #0: ffff888099b59538 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work+0x82b/0x1670 [ 1009.139854][ T1176] #1: ffffc90005507da8 ((addr_chk_work).work){+.+.}-{0:0}, at: process_one_work+0x85f/0x1670 [ 1009.150818][ T1176] #2: ffffffff8b14d828 (rtnl_mutex){+.+.}-{3:3}, at: addrconf_verify_work+0xa/0x20 [ 1009.160988][ T1176] 1 lock held by syz-executor923/6868: [ 1009.166448][ T1176] #0: ffffffff8b14d828 (rtnl_mutex){+.+.}-{3:3}, at: tcf_action_init_1+0x85f/0xac0 [ 1009.178064][ T1176] 1 lock held by syz-executor923/6881: [ 1009.184167][ T1176] #0: ffffffff8b14d828 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x3f9/0xad0 [ 1009.194296][ T1176] 1 lock held by syz-executor923/6877: [ 1009.200528][ T1176] #0: ffffffff8b14d828 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x3f9/0xad0 [ 1009.210622][ T1176] 1 lock held by syz-executor923/6883: [ 1009.216080][ T1176] #0: ffffffff8b14d828 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x3f9/0xad0 [ 1009.226642][ T1176] 1 lock held by syz-executor923/6875: [ 1009.232824][ T1176] 1 lock held by syz-executor923/6882: [ 1009.238278][ T1176] #0: ffffffff8b14d828 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x3f9/0xad0 [ 1009.248727][ T1176] 1 lock held by syz-executor923/6878: [ 1009.254829][ T1176] #0: ffffffff8b14d828 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x3f9/0xad0 [ 1009.264982][ T1176] 1 lock held by syz-executor923/6884: [ 1009.271076][ T1176] #0: ffffffff8b14d828 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x3f9/0xad0 [ 1009.281118][ T1176] 1 lock held by syz-executor923/6876: [ 1009.286574][ T1176] #0: ffffffff8b14d828 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x3f9/0xad0 [ 1009.297124][ T1176] 1 lock held by syz-executor923/6885: [ 1009.304356][ T1176] #0: ffffffff8b14d828 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x3f9/0xad0 [ 1009.314443][ T1176] 1 lock held by syz-executor923/6879: [ 1009.320541][ T1176] #0: ffffffff8b14d828 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x3f9/0xad0 [ 1009.330782][ T1176] 1 lock held by syz-executor923/6886: [ 1009.336231][ T1176] #0: ffffffff8b14d828 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x3f9/0xad0 [ 1009.346802][ T1176] [ 1009.351642][ T1176] ============================================= [ 1009.351642][ T1176] [ 1009.361265][ T1176] NMI backtrace for cpu 0 [ 1009.365605][ T1176] CPU: 0 PID: 1176 Comm: khungtaskd Not tainted 5.9.0-rc6-syzkaller #0 [ 1009.373829][ T1176] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 1009.383892][ T1176] Call Trace: [ 1009.387239][ T1176] dump_stack+0x198/0x1fd [ 1009.391679][ T1176] nmi_cpu_backtrace.cold+0x70/0xb1 [ 1009.396950][ T1176] ? lapic_can_unplug_cpu.cold+0x38/0x38 [ 1009.402578][ T1176] nmi_trigger_cpumask_backtrace+0x1b3/0x223 [ 1009.408589][ T1176] watchdog+0xd7d/0x1000 [ 1009.412832][ T1176] ? reset_hung_task_detector+0x30/0x30 [ 1009.418407][ T1176] kthread+0x3b5/0x4a0 [ 1009.422472][ T1176] ? __kthread_bind_mask+0xc0/0xc0 [ 1009.427654][ T1176] ret_from_fork+0x1f/0x30 [ 1009.432210][ T1176] Sending NMI from CPU 0 to CPUs 1: [ 1009.438299][ C1] NMI backtrace for cpu 1 [ 1009.438306][ C1] CPU: 1 PID: 6875 Comm: syz-executor923 Not tainted 5.9.0-rc6-syzkaller #0 [ 1009.438312][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 1009.438316][ C1] RIP: 0010:__lock_acquire+0x18a/0x5780 [ 1009.438328][ C1] Code: 48 c7 c0 60 e1 43 8d 83 e0 07 83 c0 03 38 c8 7c 08 84 c9 0f 85 c9 12 00 00 44 8b 25 50 45 e8 0b 45 85 e4 75 0b 83 7c 24 10 2f <0f> 87 c6 10 00 00 48 8d b5 e8 08 00 00 48 81 ea 00 0e 0c 8d 48 b9 [ 1009.438332][ C1] RSP: 0018:ffffc90005526b40 EFLAGS: 00000097 [ 1009.438339][ C1] RAX: 0000000000000003 RBX: 0000000000000001 RCX: 0000000000000004 [ 1009.438345][ C1] RDX: ffffffff8d1054a8 RSI: 0000000000000000 RDI: ffff888214df8670 [ 1009.438350][ C1] RBP: ffff8880a17da380 R08: 0000000000000001 R09: 0000000000000000 [ 1009.438355][ C1] R10: 0000000000000001 R11: 0000000000000000 R12: 0000000000000000 [ 1009.438360][ C1] R13: 0000000000000000 R14: ffff888214df8668 R15: 0000000000000000 [ 1009.438366][ C1] FS: 00007f7e9c86e700(0000) GS:ffff8880ae500000(0000) knlGS:0000000000000000 [ 1009.438370][ C1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 1009.438374][ C1] CR2: 00007f4e31e0041c CR3: 0000000096863000 CR4: 00000000001506e0 [ 1009.438379][ C1] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 1009.438385][ C1] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 1009.438387][ C1] Call Trace: [ 1009.438391][ C1] ? lockdep_hardirqs_on_prepare+0x530/0x530 [ 1009.438394][ C1] ? mark_lock+0x82/0x1660 [ 1009.438398][ C1] ? io_schedule_timeout+0x140/0x140 [ 1009.438401][ C1] ? sched_clock_cpu+0x18/0x1f0 [ 1009.438404][ C1] lock_acquire+0x1f3/0xaf0 [ 1009.438408][ C1] ? tcf_idr_check_alloc+0x78/0x3b0 [ 1009.438410][ C1] ? lock_release+0x8f0/0x8f0 [ 1009.438414][ C1] ? asm_sysvec_apic_timer_interrupt+0x12/0x20 [ 1009.438417][ C1] ? tcf_idr_check_alloc+0x29e/0x3b0 [ 1009.438420][ C1] ? lock_is_held_type+0xbb/0xf0 [ 1009.438423][ C1] __mutex_lock+0x134/0x10e0 [ 1009.438427][ C1] ? tcf_idr_check_alloc+0x78/0x3b0 [ 1009.438430][ C1] ? tcf_idr_check_alloc+0x78/0x3b0 [ 1009.438433][ C1] ? mutex_lock_io_nested+0xf60/0xf60 [ 1009.438436][ C1] ? __mutex_unlock_slowpath+0xe2/0x610 [ 1009.438440][ C1] ? wait_for_completion+0x260/0x260 [ 1009.438443][ C1] tcf_idr_check_alloc+0x78/0x3b0 [ 1009.438446][ C1] tcf_connmark_init+0x2de/0x910 [ 1009.438449][ C1] ? tcf_connmark_act+0xb40/0xb40 [ 1009.438452][ C1] ? lock_downgrade+0x830/0x830 [ 1009.438455][ C1] ? __kmalloc_track_caller+0x38/0x360 [ 1009.438459][ C1] tcf_action_init_1+0x6e8/0xac0 [ 1009.438462][ C1] ? tcf_action_dump_old+0x80/0x80 [ 1009.438465][ C1] ? lock_downgrade+0x830/0x830 [ 1009.438468][ C1] tcf_action_init+0x265/0x4b0 [ 1009.438471][ C1] ? tcf_action_init_1+0xac0/0xac0 [ 1009.438474][ C1] tcf_action_add+0xd9/0x360 [ 1009.438477][ C1] ? tca_action_gd+0xe20/0xe20 [ 1009.438480][ C1] ? bpf_lsm_capable+0x5/0x10 [ 1009.438483][ C1] ? __nla_parse+0x3d/0x4a [ 1009.438485][ C1] tc_ctl_action+0x33a/0x439 [ 1009.438488][ C1] ? tcf_action_add+0x360/0x360 [ 1009.438492][ C1] ? lock_is_held_type+0xbb/0xf0 [ 1009.438495][ C1] ? tcf_action_add+0x360/0x360 [ 1009.438498][ C1] rtnetlink_rcv_msg+0x44e/0xad0 [ 1009.438501][ C1] ? rtnetlink_put_metrics+0x510/0x510 [ 1009.438504][ C1] ? lock_acquire+0x1f3/0xaf0 [ 1009.438507][ C1] ? netlink_deliver_tap+0x146/0xb70 [ 1009.438510][ C1] netlink_rcv_skb+0x15a/0x430 [ 1009.438513][ C1] ? rtnetlink_put_metrics+0x510/0x510 [ 1009.438516][ C1] ? netlink_ack+0xa10/0xa10 [ 1009.438520][ C1] ? __kmalloc_node_track_caller+0x38/0x60 [ 1009.438523][ C1] netlink_unicast+0x533/0x7d0 [ 1009.438526][ C1] ? netlink_attachskb+0x810/0x810 [ 1009.438529][ C1] ? __phys_addr_symbol+0x2c/0x70 [ 1009.438533][ C1] ? __check_object_size+0x171/0x3e4 [ 1009.438536][ C1] netlink_sendmsg+0x856/0xd90 [ 1009.438539][ C1] ? netlink_unicast+0x7d0/0x7d0 [ 1009.438542][ C1] ? bpf_lsm_socket_sendmsg+0x5/0x10 [ 1009.438545][ C1] ? netlink_unicast+0x7d0/0x7d0 [ 1009.438548][ C1] sock_sendmsg+0xcf/0x120 [ 1009.438551][ C1] ____sys_sendmsg+0x6e8/0x810 [ 1009.438554][ C1] ? kernel_sendmsg+0x50/0x50 [ 1009.438557][ C1] ? do_recvmmsg+0x6d0/0x6d0 [ 1009.438560][ C1] ? lockdep_hardirqs_on_prepare+0x530/0x530 [ 1009.438564][ C1] ? lock_is_held_type+0xbb/0xf0 [ 1009.438567][ C1] ? find_held_lock+0x2d/0x110 [ 1009.438569][ C1] ___sys_sendmsg+0xf3/0x170 [ 1009.438573][ C1] ? sendmsg_copy_msghdr+0x160/0x160 [ 1009.438576][ C1] ? __fget_files+0x272/0x400 [ 1009.438579][ C1] ? lock_downgrade+0x830/0x830 [ 1009.438582][ C1] ? do_huge_pmd_anonymous_page+0x8f2/0x2200 [ 1009.438585][ C1] ? __fget_files+0x294/0x400 [ 1009.438588][ C1] ? __fget_light+0xea/0x280 [ 1009.438591][ C1] __sys_sendmsg+0xe5/0x1b0 [ 1009.438594][ C1] ? __sys_sendmsg_sock+0xb0/0xb0 [ 1009.438598][ C1] ? check_preemption_disabled+0x50/0x130 [ 1009.438601][ C1] ? syscall_enter_from_user_mode+0x1d/0x60 [ 1009.438604][ C1] do_syscall_64+0x2d/0x70 [ 1009.438608][ C1] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 1009.438610][ C1] RIP: 0033:0x446c19 [ 1009.438621][ C1] Code: e8 0c e8 ff ff 48 83 c4 18 c3 0f 1f 80 00 00 00 00 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 db 06 fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 1009.438625][ C1] RSP: 002b:00007f7e9c86dd98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 1009.438633][ C1] RAX: ffffffffffffffda RBX: 00000000006dbc28 RCX: 0000000000446c19 [ 1009.438637][ C1] RDX: 0000000000000000 RSI: 0000000020002980 RDI: 0000000000000003 [ 1009.438642][ C1] RBP: 00000000006dbc20 R08: 0000000000000000 R09: 0000000000000000 [ 1009.438646][ C1] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dbc2c [ 1009.438651][ C1] R13: 0001008400000000 R14: 0000000000e60000 R15: 053b003000000098 [ 1009.449881][ T1176] Kernel panic - not syncing: hung_task: blocked tasks [ 1010.004622][ T1176] CPU: 0 PID: 1176 Comm: khungtaskd Not tainted 5.9.0-rc6-syzkaller #0 [ 1010.012849][ T1176] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 1010.022893][ T1176] Call Trace: [ 1010.026203][ T1176] dump_stack+0x198/0x1fd [ 1010.030647][ T1176] panic+0x382/0x7fb [ 1010.034547][ T1176] ? __warn_printk+0xf3/0xf3 [ 1010.039142][ T1176] ? lapic_can_unplug_cpu.cold+0x38/0x38 [ 1010.044772][ T1176] ? preempt_schedule_thunk+0x16/0x18 [ 1010.050143][ T1176] ? watchdog.cold+0x5/0x16b [ 1010.054726][ T1176] ? watchdog+0xa82/0x1000 [ 1010.059138][ T1176] watchdog.cold+0x16/0x16b [ 1010.063638][ T1176] ? reset_hung_task_detector+0x30/0x30 [ 1010.069197][ T1176] kthread+0x3b5/0x4a0 [ 1010.073267][ T1176] ? __kthread_bind_mask+0xc0/0xc0 [ 1010.078384][ T1176] ret_from_fork+0x1f/0x30 [ 1010.084219][ T1176] Kernel Offset: disabled [ 1010.088552][ T1176] Rebooting in 86400 seconds..