Warning: Permanently added '10.128.10.42' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program syzkaller login: [ 717.800395] INFO: task kworker/0:3:4720 blocked for more than 140 seconds. [ 717.807518] Not tainted 4.19.211-syzkaller #0 [ 717.814477] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 717.823450] kworker/0:3 D27104 4720 2 0x80000000 [ 717.829142] Workqueue: ipv6_addrconf addrconf_verify_work [ 717.836230] Call Trace: [ 717.838866] __schedule+0x887/0x2040 [ 717.845554] ? io_schedule_timeout+0x140/0x140 [ 717.851047] ? lock_downgrade+0x720/0x720 [ 717.855218] ? __mutex_lock+0x418/0x1190 [ 717.859302] schedule+0x8d/0x1b0 [ 717.864328] schedule_preempt_disabled+0xf/0x20 [ 717.869017] __mutex_lock+0x5f0/0x1190 [ 717.874226] ? addrconf_verify_work+0xa/0x20 [ 717.878656] ? mutex_trylock+0x1a0/0x1a0 [ 717.883889] ? _raw_spin_unlock_irqrestore+0x66/0xe0 [ 717.889010] ? process_one_work+0x77b/0x1570 [ 717.894562] ? check_preemption_disabled+0x41/0x280 [ 717.899645] addrconf_verify_work+0xa/0x20 [ 717.905042] process_one_work+0x864/0x1570 [ 717.909294] ? pwq_dec_nr_in_flight+0x2d0/0x2d0 [ 717.915103] worker_thread+0x64c/0x1130 [ 717.919094] ? __kthread_parkme+0x133/0x1e0 [ 717.924696] ? process_one_work+0x1570/0x1570 [ 717.929205] kthread+0x33f/0x460 [ 717.933657] ? kthread_park+0x180/0x180 [ 717.937661] ret_from_fork+0x24/0x30 [ 717.942747] INFO: task syz-executor420:8080 blocked for more than 140 seconds. [ 717.951108] Not tainted 4.19.211-syzkaller #0 [ 717.956142] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 717.965378] syz-executor420 D25800 8080 8074 0x00000004 [ 717.972487] Call Trace: [ 717.975098] __schedule+0x887/0x2040 [ 717.978840] ? io_schedule_timeout+0x140/0x140 [ 717.985179] ? lock_downgrade+0x720/0x720 [ 717.989347] ? __mutex_lock+0x418/0x1190 [ 717.994935] schedule+0x8d/0x1b0 [ 717.998348] schedule_preempt_disabled+0xf/0x20 [ 718.004634] __mutex_lock+0x5f0/0x1190 [ 718.008561] ? tcf_ife_init+0x105b/0x1730 [ 718.013999] ? mutex_trylock+0x1a0/0x1a0 [ 718.018086] ? lock_downgrade+0x720/0x720 [ 718.023560] tcf_ife_init+0x105b/0x1730 [ 718.027736] ? ife_get_meta_u16+0x180/0x180 [ 718.034656] tcf_action_init_1+0xa06/0xcd0 [ 718.038916] ? tcf_action_dump_old+0x80/0x80 [ 718.044460] ? memset+0x20/0x40 [ 718.047767] tcf_action_init+0x26e/0x3b0 [ 718.053215] ? tcf_action_init_1+0xcd0/0xcd0 [ 718.057673] tcf_action_add+0xd9/0x360 [ 718.062659] ? tca_action_gd+0x1550/0x1550 [ 718.066905] ? mark_held_locks+0xf0/0xf0 [ 718.072181] ? memset+0x20/0x40 [ 718.075470] ? nla_parse+0x1b2/0x290 [ 718.079188] tc_ctl_action+0x327/0x410 [ 718.084589] ? tcf_action_add+0x360/0x360 [ 718.088760] ? tcf_action_add+0x360/0x360 [ 718.094059] rtnetlink_rcv_msg+0x453/0xb80 [ 718.098565] ? rtnl_calcit.isra.0+0x430/0x430 [ 718.104239] ? __netlink_lookup+0x3fc/0x730 [ 718.108571] ? lock_downgrade+0x720/0x720 [ 718.113799] ? check_preemption_disabled+0x41/0x280 [ 718.118827] netlink_rcv_skb+0x160/0x440 [ 718.124021] ? rtnl_calcit.isra.0+0x430/0x430 [ 718.128528] ? netlink_ack+0xae0/0xae0 [ 718.133520] netlink_unicast+0x4d5/0x690 [ 718.137594] ? netlink_sendskb+0x110/0x110 [ 718.143008] ? _copy_from_iter_full+0x229/0x7c0 [ 718.147687] ? __phys_addr_symbol+0x2c/0x70 [ 718.153084] ? __check_object_size+0x17b/0x3e0 [ 718.157679] netlink_sendmsg+0x6c3/0xc50 [ 718.162881] ? aa_af_perm+0x230/0x230 [ 718.166688] ? nlmsg_notify+0x1f0/0x1f0 [ 718.171819] ? kernel_recvmsg+0x220/0x220 [ 718.175989] ? nlmsg_notify+0x1f0/0x1f0 [ 718.179962] sock_sendmsg+0xc3/0x120 [ 718.185226] ___sys_sendmsg+0x7bb/0x8e0 [ 718.189212] ? copy_msghdr_from_user+0x440/0x440 [ 718.195059] ? do_huge_pmd_anonymous_page+0x935/0x1e60 [ 718.201827] ? __fget+0x32f/0x510 [ 718.205301] ? lock_downgrade+0x720/0x720 [ 718.209449] ? check_preemption_disabled+0x41/0x280 [ 718.217601] ? check_preemption_disabled+0x41/0x280 [ 718.223388] ? __fget+0x356/0x510 [ 718.226959] ? do_dup2+0x450/0x450 [ 718.231619] ? __fdget+0x1d0/0x230 [ 718.235197] __x64_sys_sendmsg+0x132/0x220 [ 718.239426] ? __sys_sendmsg+0x1b0/0x1b0 [ 718.244955] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 718.251027] ? trace_hardirqs_off_caller+0x6e/0x210 [ 718.256055] ? do_syscall_64+0x21/0x620 [ 718.260028] do_syscall_64+0xf9/0x620 [ 718.265341] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 718.271313] RIP: 0033:0x7fa67ba559f9 [ 718.275033] Code: Bad RIP value. [ 718.278391] RSP: 002b:00007fa67ba07318 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 718.287639] RAX: ffffffffffffffda RBX: 00007fa67badd3e8 RCX: 00007fa67ba559f9 [ 718.295643] RDX: 0000000000000000 RSI: 0000000020000100 RDI: 0000000000000003 [ 718.304478] RBP: 00007fa67badd3e0 R08: 0000000000000000 R09: 0000000000000000 [ 718.312711] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fa67badd3ec [ 718.320022] R13: 00007ffe12eb660f R14: 00007fa67ba07400 R15: 0000000000022000 [ 718.328515] INFO: task syz-executor420:8093 blocked for more than 140 seconds. [ 718.336704] Not tainted 4.19.211-syzkaller #0 [ 718.342433] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 718.352006] syz-executor420 D28528 8093 8074 0x00000004 [ 718.357646] Call Trace: [ 718.361448] __schedule+0x887/0x2040 [ 718.365180] ? io_schedule_timeout+0x140/0x140 [ 718.369757] ? lock_downgrade+0x720/0x720 [ 718.375483] ? __mutex_lock+0x418/0x1190 [ 718.379561] schedule+0x8d/0x1b0 [ 718.384133] schedule_preempt_disabled+0xf/0x20 [ 718.388816] __mutex_lock+0x5f0/0x1190 [ 718.393978] ? apparmor_capable+0x147/0x750 [ 718.398320] ? rtnetlink_rcv_msg+0x3fe/0xb80 [ 718.403960] ? mutex_trylock+0x1a0/0x1a0 [ 718.408034] ? rtnetlink_rcv_msg+0x3c3/0xb80 [ 718.414880] ? check_preemption_disabled+0x41/0x280 [ 718.419926] rtnetlink_rcv_msg+0x3fe/0xb80 [ 718.425321] ? rtnl_calcit.isra.0+0x430/0x430 [ 718.429828] ? __netlink_lookup+0x3fc/0x730 [ 718.435330] ? lock_downgrade+0x720/0x720 [ 718.439488] ? check_preemption_disabled+0x41/0x280 [ 718.445713] netlink_rcv_skb+0x160/0x440 [ 718.449871] ? rtnl_calcit.isra.0+0x430/0x430 [ 718.455443] ? netlink_ack+0xae0/0xae0 [ 718.459351] netlink_unicast+0x4d5/0x690 [ 718.464579] ? netlink_sendskb+0x110/0x110 [ 718.468823] ? _copy_from_iter_full+0x229/0x7c0 [ 718.474562] ? __phys_addr_symbol+0x2c/0x70 [ 718.478895] ? __check_object_size+0x17b/0x3e0 [ 718.484608] netlink_sendmsg+0x6c3/0xc50 [ 718.488685] ? aa_af_perm+0x230/0x230 [ 718.493556] ? nlmsg_notify+0x1f0/0x1f0 [ 718.497534] ? kernel_recvmsg+0x220/0x220 [ 718.502781] ? nlmsg_notify+0x1f0/0x1f0 [ 718.506767] sock_sendmsg+0xc3/0x120 [ 718.511601] ___sys_sendmsg+0x7bb/0x8e0 [ 718.516019] ? copy_msghdr_from_user+0x440/0x440 [ 718.521987] ? __fget+0x32f/0x510 [ 718.525456] ? lock_downgrade+0x720/0x720 [ 718.529603] ? check_preemption_disabled+0x41/0x280 [ 718.536154] ? check_preemption_disabled+0x41/0x280 [ 718.542165] ? __fget+0x356/0x510 [ 718.545633] ? do_dup2+0x450/0x450 [ 718.549176] ? __fdget+0x1d0/0x230 [ 718.554216] __x64_sys_sendmsg+0x132/0x220 [ 718.558464] ? __sys_sendmsg+0x1b0/0x1b0 [ 718.563636] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 718.569011] ? trace_hardirqs_off_caller+0x6e/0x210 [ 718.575121] ? do_syscall_64+0x21/0x620 [ 718.579108] do_syscall_64+0xf9/0x620 [ 718.584608] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 718.589828] RIP: 0033:0x7fa67ba559f9 [ 718.595057] Code: Bad RIP value. [ 718.598538] RSP: 002b:00007fa67b9e6318 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 718.608871] RAX: ffffffffffffffda RBX: 00007fa67badd3f8 RCX: 00007fa67ba559f9 [ 718.616874] RDX: 0000000000000000 RSI: 0000000020000100 RDI: 0000000000000003 [ 718.624858] RBP: 00007fa67badd3f0 R08: 00007fa67b9e6700 R09: 0000000000000000 [ 718.632822] R10: 00007fa67b9e6700 R11: 0000000000000246 R12: 00007fa67badd3fc [ 718.641010] R13: 00007ffe12eb660f R14: 00007fa67b9e6400 R15: 0000000000022000 [ 718.648390] INFO: task syz-executor420:8089 blocked for more than 140 seconds. [ 718.656935] Not tainted 4.19.211-syzkaller #0 [ 718.662637] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 718.672217] syz-executor420 D29048 8089 8078 0x00000004 [ 718.677865] Call Trace: [ 718.681647] __schedule+0x887/0x2040 [ 718.685376] ? io_schedule_timeout+0x140/0x140 [ 718.689958] ? lock_downgrade+0x720/0x720 [ 718.695639] ? __mutex_lock+0x418/0x1190 [ 718.699719] schedule+0x8d/0x1b0 [ 718.704222] schedule_preempt_disabled+0xf/0x20 [ 718.708913] __mutex_lock+0x5f0/0x1190 [ 718.714410] ? apparmor_capable+0x147/0x750 [ 718.718742] ? rtnetlink_rcv_msg+0x3fe/0xb80 [ 718.724326] ? mutex_trylock+0x1a0/0x1a0 [ 718.728404] ? rtnetlink_rcv_msg+0x3c3/0xb80 [ 718.733926] ? check_preemption_disabled+0x41/0x280 [ 718.738975] rtnetlink_rcv_msg+0x3fe/0xb80 [ 718.744514] ? rtnl_calcit.isra.0+0x430/0x430 [ 718.749605] ? __netlink_lookup+0x3fc/0x730 [ 718.755196] ? lock_downgrade+0x720/0x720 [ 718.759535] ? check_preemption_disabled+0x41/0x280 [ 718.765985] netlink_rcv_skb+0x160/0x440 [ 718.770070] ? rtnl_calcit.isra.0+0x430/0x430 [ 718.775671] ? netlink_ack+0xae0/0xae0 [ 718.779572] netlink_unicast+0x4d5/0x690 [ 718.784847] ? netlink_sendskb+0x110/0x110 [ 718.789093] ? _copy_from_iter_full+0x229/0x7c0 [ 718.795009] ? __phys_addr_symbol+0x2c/0x70 [ 718.799347] ? __check_object_size+0x17b/0x3e0 [ 718.806441] netlink_sendmsg+0x6c3/0xc50 [ 718.811518] ? aa_af_perm+0x230/0x230 [ 718.815348] ? nlmsg_notify+0x1f0/0x1f0 [ 718.819328] ? kernel_recvmsg+0x220/0x220 [ 718.825072] ? nlmsg_notify+0x1f0/0x1f0 [ 718.829064] sock_sendmsg+0xc3/0x120 [ 718.833894] ___sys_sendmsg+0x7bb/0x8e0 [ 718.837923] ? copy_msghdr_from_user+0x440/0x440 [ 718.844170] ? do_huge_pmd_anonymous_page+0x935/0x1e60 [ 718.849507] ? __fget+0x32f/0x510 [ 718.854332] ? lock_downgrade+0x720/0x720 [ 718.858502] ? check_preemption_disabled+0x41/0x280 [ 718.865218] ? check_preemption_disabled+0x41/0x280 [ 718.871007] ? __fget+0x356/0x510 [ 718.874487] ? do_dup2+0x450/0x450 [ 718.878077] ? __fdget+0x1d0/0x230 [ 718.883416] __x64_sys_sendmsg+0x132/0x220 [ 718.887679] ? __sys_sendmsg+0x1b0/0x1b0 [ 718.893026] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 718.898408] ? trace_hardirqs_off_caller+0x6e/0x210 [ 718.905079] ? do_syscall_64+0x21/0x620 [ 718.909091] do_syscall_64+0xf9/0x620 [ 718.914346] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 718.919576] RIP: 0033:0x7fa67ba559f9 [ 718.924684] Code: Bad RIP value. [ 718.928066] RSP: 002b:00007fa67ba07318 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 718.936924] RAX: ffffffffffffffda RBX: 00007fa67badd3e8 RCX: 00007fa67ba559f9 [ 718.944940] RDX: 0000000000000000 RSI: 0000000020000100 RDI: 0000000000000003 [ 718.952999] RBP: 00007fa67badd3e0 R08: 0000000000000000 R09: 0000000000000000 [ 718.961013] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fa67badd3ec [ 718.968383] R13: 00007ffe12eb660f R14: 00007fa67ba07400 R15: 0000000000022000 [ 718.977009] INFO: task syz-executor420:8095 blocked for more than 140 seconds. [ 718.985219] Not tainted 4.19.211-syzkaller #0 [ 718.990939] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 718.998995] syz-executor420 D29048 8095 8078 0x00000004 [ 719.006814] Call Trace: [ 719.009435] __schedule+0x887/0x2040 [ 719.015817] ? io_schedule_timeout+0x140/0x140 [ 719.021173] ? lock_downgrade+0x720/0x720 [ 719.025332] ? __mutex_lock+0x418/0x1190 [ 719.029575] schedule+0x8d/0x1b0 [ 719.034426] schedule_preempt_disabled+0xf/0x20 [ 719.039116] __mutex_lock+0x5f0/0x1190 [ 719.044083] ? apparmor_capable+0x147/0x750 [ 719.048422] ? rtnetlink_rcv_msg+0x3fe/0xb80 [ 719.053946] ? mutex_trylock+0x1a0/0x1a0 [ 719.058023] ? rtnetlink_rcv_msg+0x3c3/0xb80 [ 719.063524] ? check_preemption_disabled+0x41/0x280 [ 719.068576] rtnetlink_rcv_msg+0x3fe/0xb80 [ 719.074231] ? rtnl_calcit.isra.0+0x430/0x430 [ 719.078771] ? __netlink_lookup+0x3fc/0x730 [ 719.084335] ? lock_downgrade+0x720/0x720 [ 719.088504] ? check_preemption_disabled+0x41/0x280 [ 719.094698] netlink_rcv_skb+0x160/0x440 [ 719.098779] ? rtnl_calcit.isra.0+0x430/0x430 [ 719.104577] ? netlink_ack+0xae0/0xae0 [ 719.108506] netlink_unicast+0x4d5/0x690 [ 719.113781] ? netlink_sendskb+0x110/0x110 [ 719.118038] ? _copy_from_iter_full+0x229/0x7c0 [ 719.123903] ? __phys_addr_symbol+0x2c/0x70 [ 719.128246] ? __check_object_size+0x17b/0x3e0 [ 719.134038] netlink_sendmsg+0x6c3/0xc50 [ 719.138115] ? aa_af_perm+0x230/0x230 [ 719.143145] ? nlmsg_notify+0x1f0/0x1f0 [ 719.147221] ? kernel_recvmsg+0x220/0x220 [ 719.152556] ? nlmsg_notify+0x1f0/0x1f0 [ 719.156543] sock_sendmsg+0xc3/0x120 [ 719.161468] ___sys_sendmsg+0x7bb/0x8e0 [ 719.165460] ? copy_msghdr_from_user+0x440/0x440 [ 719.171338] ? __fget+0x32f/0x510 [ 719.174815] ? lock_downgrade+0x720/0x720 [ 719.178970] ? check_preemption_disabled+0x41/0x280 [ 719.185563] ? check_preemption_disabled+0x41/0x280 [ 719.192744] ? __fget+0x356/0x510 [ 719.196237] ? do_dup2+0x450/0x450 [ 719.199788] ? __fdget+0x1d0/0x230 [ 719.205082] __x64_sys_sendmsg+0x132/0x220 [ 719.209330] ? __sys_sendmsg+0x1b0/0x1b0 [ 719.214736] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 719.220898] ? trace_hardirqs_off_caller+0x6e/0x210 [ 719.226063] ? do_syscall_64+0x21/0x620 [ 719.230044] do_syscall_64+0xf9/0x620 [ 719.235670] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 719.241637] RIP: 0033:0x7fa67ba559f9 [ 719.245362] Code: Bad RIP value. [ 719.248730] RSP: 002b:00007fa67b9e6318 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 719.257974] RAX: ffffffffffffffda RBX: 00007fa67badd3f8 RCX: 00007fa67ba559f9 [ 719.266160] RDX: 0000000000000000 RSI: 0000000020000100 RDI: 0000000000000003 [ 719.274244] RBP: 00007fa67badd3f0 R08: 00007fa67b9e6700 R09: 0000000000000000 [ 719.282297] R10: 00007fa67b9e6700 R11: 0000000000000246 R12: 00007fa67badd3fc [ 719.289575] R13: 00007ffe12eb660f R14: 00007fa67b9e6400 R15: 0000000000022000 [ 719.298160] INFO: task syz-executor420:8090 blocked for more than 140 seconds. [ 719.306285] Not tainted 4.19.211-syzkaller #0 [ 719.311989] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 719.319974] syz-executor420 D28520 8090 8077 0x00000004 [ 719.327509] Call Trace: [ 719.330855] __schedule+0x887/0x2040 [ 719.334588] ? io_schedule_timeout+0x140/0x140 [ 719.339174] ? lock_downgrade+0x720/0x720 [ 719.344762] ? __mutex_lock+0x418/0x1190 [ 719.348839] schedule+0x8d/0x1b0 [ 719.353590] schedule_preempt_disabled+0xf/0x20 [ 719.358294] __mutex_lock+0x5f0/0x1190 [ 719.363494] ? apparmor_capable+0x147/0x750 [ 719.367838] ? rtnetlink_rcv_msg+0x3fe/0xb80 [ 719.373475] ? mutex_trylock+0x1a0/0x1a0 [ 719.377553] ? rtnetlink_rcv_msg+0x3c3/0xb80 [ 719.383100] ? check_preemption_disabled+0x41/0x280 [ 719.388137] rtnetlink_rcv_msg+0x3fe/0xb80 [ 719.394976] ? rtnl_calcit.isra.0+0x430/0x430 [ 719.399503] ? __netlink_lookup+0x3fc/0x730 [ 719.405010] ? lock_downgrade+0x720/0x720 [ 719.409203] ? check_preemption_disabled+0x41/0x280 [ 719.415707] netlink_rcv_skb+0x160/0x440 [ 719.419792] ? rtnl_calcit.isra.0+0x430/0x430 [ 719.425483] ? netlink_ack+0xae0/0xae0 [ 719.429394] netlink_unicast+0x4d5/0x690 [ 719.434883] ? netlink_sendskb+0x110/0x110 [ 719.439148] ? _copy_from_iter_full+0x229/0x7c0 [ 719.445444] ? __phys_addr_symbol+0x2c/0x70 [ 719.449812] ? __check_object_size+0x17b/0x3e0 [ 719.455676] netlink_sendmsg+0x6c3/0xc50 [ 719.459769] ? aa_af_perm+0x230/0x230 [ 719.464861] ? nlmsg_notify+0x1f0/0x1f0 [ 719.468860] ? kernel_recvmsg+0x220/0x220 [ 719.474354] ? nlmsg_notify+0x1f0/0x1f0 [ 719.478354] sock_sendmsg+0xc3/0x120 [ 719.483213] ___sys_sendmsg+0x7bb/0x8e0 [ 719.487220] ? copy_msghdr_from_user+0x440/0x440 [ 719.493174] ? do_huge_pmd_anonymous_page+0x935/0x1e60 [ 719.498469] ? __fget+0x32f/0x510 [ 719.503018] ? lock_downgrade+0x720/0x720 [ 719.507181] ? check_preemption_disabled+0x41/0x280 [ 719.513350] ? check_preemption_disabled+0x41/0x280 [ 719.518393] ? __fget+0x356/0x510 [ 719.522979] ? do_dup2+0x450/0x450 [ 719.526537] ? __fdget+0x1d0/0x230 [ 719.531180] __x64_sys_sendmsg+0x132/0x220 [ 719.535426] ? __sys_sendmsg+0x1b0/0x1b0 [ 719.539498] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 719.546303] ? trace_hardirqs_off_caller+0x6e/0x210 [ 719.552075] ? do_syscall_64+0x21/0x620 [ 719.556066] do_syscall_64+0xf9/0x620 [ 719.559900] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 719.566705] RIP: 0033:0x7fa67ba559f9 [ 719.571138] Code: Bad RIP value. [ 719.574505] RSP: 002b:00007fa67ba07318 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 719.585054] RAX: ffffffffffffffda RBX: 00007fa67badd3e8 RCX: 00007fa67ba559f9 [ 719.593170] RDX: 0000000000000000 RSI: 0000000020000100 RDI: 0000000000000003 [ 719.601252] RBP: 00007fa67badd3e0 R08: 0000000000000000 R09: 0000000000000000 [ 719.608534] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fa67badd3ec [ 719.617030] R13: 00007ffe12eb660f R14: 00007fa67ba07400 R15: 0000000000022000 [ 719.625083] INFO: task syz-executor420:8098 blocked for more than 140 seconds. [ 719.633171] Not tainted 4.19.211-syzkaller #0 [ 719.638187] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 719.647458] syz-executor420 D29048 8098 8077 0x00000004 [ 719.654636] Call Trace: [ 719.657252] __schedule+0x887/0x2040 [ 719.662190] ? io_schedule_timeout+0x140/0x140 [ 719.666790] ? lock_downgrade+0x720/0x720 [ 719.672107] ? __mutex_lock+0x418/0x1190 [ 719.676180] schedule+0x8d/0x1b0 [ 719.679599] schedule_preempt_disabled+0xf/0x20 [ 719.685898] __mutex_lock+0x5f0/0x1190 [ 719.689806] ? apparmor_capable+0x147/0x750 [ 719.695226] ? rtnetlink_rcv_msg+0x3fe/0xb80 [ 719.699649] ? mutex_trylock+0x1a0/0x1a0 [ 719.704871] ? rtnetlink_rcv_msg+0x3c3/0xb80 [ 719.709316] ? check_preemption_disabled+0x41/0x280 [ 719.715611] rtnetlink_rcv_msg+0x3fe/0xb80 [ 719.719865] ? rtnl_calcit.isra.0+0x430/0x430 [ 719.725594] ? __netlink_lookup+0x3fc/0x730 [ 719.729935] ? lock_downgrade+0x720/0x720 [ 719.735286] ? check_preemption_disabled+0x41/0x280 [ 719.741066] netlink_rcv_skb+0x160/0x440 [ 719.745142] ? rtnl_calcit.isra.0+0x430/0x430 [ 719.749639] ? netlink_ack+0xae0/0xae0 [ 719.755066] netlink_unicast+0x4d5/0x690 [ 719.759147] ? netlink_sendskb+0x110/0x110 [ 719.764638] ? _copy_from_iter_full+0x229/0x7c0 [ 719.769332] ? __phys_addr_symbol+0x2c/0x70 [ 719.775305] ? __check_object_size+0x17b/0x3e0 [ 719.779927] netlink_sendmsg+0x6c3/0xc50 [ 719.786318] ? aa_af_perm+0x230/0x230 [ 719.790805] ? nlmsg_notify+0x1f0/0x1f0 [ 719.794787] ? kernel_recvmsg+0x220/0x220 [ 719.798940] ? nlmsg_notify+0x1f0/0x1f0 [ 719.804351] sock_sendmsg+0xc3/0x120 [ 719.808090] ___sys_sendmsg+0x7bb/0x8e0 [ 719.813373] ? copy_msghdr_from_user+0x440/0x440 [ 719.818181] ? __fget+0x32f/0x510 [ 719.822947] ? lock_downgrade+0x720/0x720 [ 719.827129] ? check_preemption_disabled+0x41/0x280 [ 719.833255] ? check_preemption_disabled+0x41/0x280 [ 719.838287] ? __fget+0x356/0x510 [ 719.842895] ? do_dup2+0x450/0x450 [ 719.846457] ? __fdget+0x1d0/0x230 [ 719.850003] __x64_sys_sendmsg+0x132/0x220 [ 719.855687] ? __sys_sendmsg+0x1b0/0x1b0 [ 719.859772] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 719.866261] ? trace_hardirqs_off_caller+0x6e/0x210 [ 719.871981] ? do_syscall_64+0x21/0x620 [ 719.875967] do_syscall_64+0xf9/0x620 [ 719.879773] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 719.887811] RIP: 0033:0x7fa67ba559f9 [ 719.892293] Code: Bad RIP value. [ 719.895665] RSP: 002b:00007fa67b9e6318 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 719.904742] RAX: ffffffffffffffda RBX: 00007fa67badd3f8 RCX: 00007fa67ba559f9 [ 719.912937] RDX: 0000000000000000 RSI: 0000000020000100 RDI: 0000000000000003 [ 719.921300] RBP: 00007fa67badd3f0 R08: 00007fa67b9e6700 R09: 0000000000000000 [ 719.928593] R10: 00007fa67b9e6700 R11: 0000000000000246 R12: 00007fa67badd3fc [ 719.937250] R13: 00007ffe12eb660f R14: 00007fa67b9e6400 R15: 0000000000022000 [ 719.945394] INFO: task syz-executor420:8094 blocked for more than 140 seconds. [ 719.953648] Not tainted 4.19.211-syzkaller #0 [ 719.958666] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 719.967906] syz-executor420 D29048 8094 8079 0x00000004 [ 719.975051] Call Trace: [ 719.977656] __schedule+0x887/0x2040 [ 719.983759] ? io_schedule_timeout+0x140/0x140 [ 719.988372] ? lock_downgrade+0x720/0x720 [ 719.993645] ? __mutex_lock+0x418/0x1190 [ 719.997721] schedule+0x8d/0x1b0 [ 720.002199] schedule_preempt_disabled+0xf/0x20 [ 720.006885] __mutex_lock+0x5f0/0x1190 [ 720.011927] ? apparmor_capable+0x147/0x750 [ 720.016263] ? rtnetlink_rcv_msg+0x3fe/0xb80 [ 720.021772] ? mutex_trylock+0x1a0/0x1a0 [ 720.025848] ? rtnetlink_rcv_msg+0x3c3/0xb80 [ 720.031341] ? check_preemption_disabled+0x41/0x280 [ 720.036370] rtnetlink_rcv_msg+0x3fe/0xb80 [ 720.041695] ? rtnl_calcit.isra.0+0x430/0x430 [ 720.046199] ? __netlink_lookup+0x3fc/0x730 [ 720.051585] ? lock_downgrade+0x720/0x720 [ 720.055832] ? check_preemption_disabled+0x41/0x280 [ 720.061945] netlink_rcv_skb+0x160/0x440 [ 720.066028] ? rtnl_calcit.isra.0+0x430/0x430 [ 720.071616] ? netlink_ack+0xae0/0xae0 [ 720.075520] netlink_unicast+0x4d5/0x690 [ 720.079583] ? netlink_sendskb+0x110/0x110 [ 720.085279] ? _copy_from_iter_full+0x229/0x7c0 [ 720.089976] ? __phys_addr_symbol+0x2c/0x70 [ 720.095374] ? __check_object_size+0x17b/0x3e0 [ 720.099972] netlink_sendmsg+0x6c3/0xc50 [ 720.105139] ? aa_af_perm+0x230/0x230 [ 720.108951] ? nlmsg_notify+0x1f0/0x1f0 [ 720.113975] ? kernel_recvmsg+0x220/0x220 [ 720.118140] ? nlmsg_notify+0x1f0/0x1f0 [ 720.123210] sock_sendmsg+0xc3/0x120 [ 720.126931] ___sys_sendmsg+0x7bb/0x8e0 [ 720.132003] ? copy_msghdr_from_user+0x440/0x440 [ 720.136775] ? __fget+0x32f/0x510 [ 720.141483] ? lock_downgrade+0x720/0x720 [ 720.145647] ? check_preemption_disabled+0x41/0x280 [ 720.151720] ? check_preemption_disabled+0x41/0x280 [ 720.156750] ? __fget+0x356/0x510 [ 720.162601] ? do_dup2+0x450/0x450 [ 720.166183] ? __fdget+0x1d0/0x230 [ 720.169728] __x64_sys_sendmsg+0x132/0x220 [ 720.175421] ? __sys_sendmsg+0x1b0/0x1b0 [ 720.179511] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 720.185974] ? trace_hardirqs_off_caller+0x6e/0x210 [ 720.191719] ? do_syscall_64+0x21/0x620 [ 720.195702] do_syscall_64+0xf9/0x620 [ 720.199502] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 720.206971] RIP: 0033:0x7fa67ba559f9 [ 720.211470] Code: Bad RIP value. [ 720.214849] RSP: 002b:00007fa67b9e6318 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 720.223975] RAX: ffffffffffffffda RBX: 00007fa67badd3f8 RCX: 00007fa67ba559f9 [ 720.232134] RDX: 0000000000000000 RSI: 0000000020000100 RDI: 0000000000000003 [ 720.239415] RBP: 00007fa67badd3f0 R08: 00007fa67b9e6700 R09: 0000000000000000 [ 720.247941] R10: 00007fa67b9e6700 R11: 0000000000000246 R12: 00007fa67badd3fc [ 720.255979] R13: 00007ffe12eb660f R14: 00007fa67b9e6400 R15: 0000000000022000 [ 720.264313] INFO: task syz-executor420:8092 blocked for more than 140 seconds. [ 720.272535] Not tainted 4.19.211-syzkaller #0 [ 720.277553] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 720.286731] syz-executor420 D28104 8092 8081 0x00000004 [ 720.293832] Call Trace: [ 720.296437] __schedule+0x887/0x2040 [ 720.301270] ? io_schedule_timeout+0x140/0x140 [ 720.305863] ? lock_downgrade+0x720/0x720 [ 720.311147] ? __mutex_lock+0x418/0x1190 [ 720.315237] schedule+0x8d/0x1b0 [ 720.318599] schedule_preempt_disabled+0xf/0x20 [ 720.324715] __mutex_lock+0x5f0/0x1190 [ 720.328616] ? apparmor_capable+0x147/0x750 [ 720.334027] ? rtnetlink_rcv_msg+0x3fe/0xb80 [ 720.338443] ? mutex_trylock+0x1a0/0x1a0 [ 720.343615] ? rtnetlink_rcv_msg+0x3c3/0xb80 [ 720.348040] ? check_preemption_disabled+0x41/0x280 [ 720.354147] rtnetlink_rcv_msg+0x3fe/0xb80 [ 720.358393] ? rtnl_calcit.isra.0+0x430/0x430 [ 720.365431] ? __netlink_lookup+0x3fc/0x730 [ 720.369773] ? lock_downgrade+0x720/0x720 [ 720.374987] ? check_preemption_disabled+0x41/0x280 [ 720.380731] netlink_rcv_skb+0x160/0x440 [ 720.384801] ? rtnl_calcit.isra.0+0x430/0x430 [ 720.389304] ? netlink_ack+0xae0/0xae0 [ 720.394644] netlink_unicast+0x4d5/0x690 [ 720.398720] ? netlink_sendskb+0x110/0x110 [ 720.404067] ? _copy_from_iter_full+0x229/0x7c0 [ 720.408749] ? __phys_addr_symbol+0x2c/0x70 [ 720.414145] ? __check_object_size+0x17b/0x3e0 [ 720.418743] netlink_sendmsg+0x6c3/0xc50 [ 720.423908] ? aa_af_perm+0x230/0x230 [ 720.427716] ? nlmsg_notify+0x1f0/0x1f0 [ 720.432732] ? kernel_recvmsg+0x220/0x220 [ 720.436893] ? nlmsg_notify+0x1f0/0x1f0 [ 720.442023] sock_sendmsg+0xc3/0x120 [ 720.445760] ___sys_sendmsg+0x7bb/0x8e0 [ 720.449733] ? copy_msghdr_from_user+0x440/0x440 [ 720.455954] ? do_huge_pmd_anonymous_page+0x935/0x1e60 [ 720.462113] ? __fget+0x32f/0x510 [ 720.465584] ? lock_downgrade+0x720/0x720 [ 720.469733] ? check_preemption_disabled+0x41/0x280 [ 720.476276] ? check_preemption_disabled+0x41/0x280 [ 720.482057] ? __fget+0x356/0x510 [ 720.485528] ? do_dup2+0x450/0x450 [ 720.489073] ? __fdget+0x1d0/0x230 [ 720.494142] __x64_sys_sendmsg+0x132/0x220 [ 720.498390] ? __sys_sendmsg+0x1b0/0x1b0 [ 720.503578] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 720.508951] ? trace_hardirqs_off_caller+0x6e/0x210 [ 720.515493] ? do_syscall_64+0x21/0x620 [ 720.519610] do_syscall_64+0xf9/0x620 [ 720.524787] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 720.530700] RIP: 0033:0x7fa67ba559f9 [ 720.534427] Code: Bad RIP value. [ 720.537786] RSP: 002b:00007fa67ba07318 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 720.547307] RAX: ffffffffffffffda RBX: 00007fa67badd3e8 RCX: 00007fa67ba559f9 [ 720.556499] RDX: 0000000000000000 RSI: 0000000020000100 RDI: 0000000000000003 [ 720.564538] RBP: 00007fa67badd3e0 R08: 0000000000000000 R09: 0000000000000000 [ 720.572513] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fa67badd3ec [ 720.579790] R13: 00007ffe12eb660f R14: 00007fa67ba07400 R15: 0000000000022000 [ 720.588222] INFO: task syz-executor420:8097 blocked for more than 140 seconds. [ 720.596331] Not tainted 4.19.211-syzkaller #0 [ 720.602013] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 720.611448] syz-executor420 D29048 8097 8081 0x00000004 [ 720.617102] Call Trace: [ 720.619698] __schedule+0x887/0x2040 [ 720.625098] ? io_schedule_timeout+0x140/0x140 [ 720.629699] ? lock_downgrade+0x720/0x720 [ 720.634970] ? __mutex_lock+0x418/0x1190 [ 720.639058] schedule+0x8d/0x1b0 [ 720.643606] schedule_preempt_disabled+0xf/0x20 [ 720.648283] __mutex_lock+0x5f0/0x1190 [ 720.653259] ? apparmor_capable+0x147/0x750 [ 720.657598] ? rtnetlink_rcv_msg+0x3fe/0xb80 [ 720.663542] ? mutex_trylock+0x1a0/0x1a0 [ 720.667641] ? rtnetlink_rcv_msg+0x3c3/0xb80 [ 720.673580] ? check_preemption_disabled+0x41/0x280 [ 720.678630] rtnetlink_rcv_msg+0x3fe/0xb80 [ 720.684312] ? rtnl_calcit.isra.0+0x430/0x430 [ 720.688840] ? __netlink_lookup+0x3fc/0x730 [ 720.694334] ? lock_downgrade+0x720/0x720 [ 720.698506] ? check_preemption_disabled+0x41/0x280 [ 720.704963] netlink_rcv_skb+0x160/0x440 [ 720.709067] ? rtnl_calcit.isra.0+0x430/0x430 [ 720.714805] ? netlink_ack+0xae0/0xae0 [ 720.718722] netlink_unicast+0x4d5/0x690 [ 720.724365] ? netlink_sendskb+0x110/0x110 [ 720.728684] ? _copy_from_iter_full+0x229/0x7c0 [ 720.734767] ? __phys_addr_symbol+0x2c/0x70 [ 720.739111] ? __check_object_size+0x17b/0x3e0 [ 720.745659] netlink_sendmsg+0x6c3/0xc50 [ 720.749760] ? aa_af_perm+0x230/0x230 [ 720.756407] ? nlmsg_notify+0x1f0/0x1f0 [ 720.761149] ? kernel_recvmsg+0x220/0x220 [ 720.765315] ? nlmsg_notify+0x1f0/0x1f0 [ 720.769319] sock_sendmsg+0xc3/0x120 [ 720.774467] ___sys_sendmsg+0x7bb/0x8e0 [ 720.778455] ? copy_msghdr_from_user+0x440/0x440 [ 720.784389] ? __fget+0x32f/0x510 [ 720.787862] ? lock_downgrade+0x720/0x720 [ 720.793091] ? check_preemption_disabled+0x41/0x280 [ 720.798134] ? check_preemption_disabled+0x41/0x280 [ 720.804666] ? __fget+0x356/0x510 [ 720.808292] ? do_dup2+0x450/0x450 [ 720.813124] ? __fdget+0x1d0/0x230 [ 720.816717] __x64_sys_sendmsg+0x132/0x220 [ 720.822479] ? __sys_sendmsg+0x1b0/0x1b0 [ 720.826588] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 720.833265] ? trace_hardirqs_off_caller+0x6e/0x210 [ 720.838313] ? do_syscall_64+0x21/0x620 [ 720.843622] do_syscall_64+0xf9/0x620 [ 720.847453] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 720.853757] RIP: 0033:0x7fa67ba559f9 [ 720.857483] Code: Bad RIP value. [ 720.861965] RSP: 002b:00007fa67b9e6318 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 720.869692] RAX: ffffffffffffffda RBX: 00007fa67badd3f8 RCX: 00007fa67ba559f9 [ 720.878090] RDX: 0000000000000000 RSI: 0000000020000100 RDI: 0000000000000003 [ 720.886119] RBP: 00007fa67badd3f0 R08: 00007fa67b9e6700 R09: 0000000000000000 [ 720.894065] R10: 00007fa67b9e6700 R11: 0000000000000246 R12: 00007fa67badd3fc [ 720.902086] R13: 00007ffe12eb660f R14: 00007fa67b9e6400 R15: 0000000000022000 [ 720.909442] [ 720.909442] Showing all locks held in the system: [ 720.916890] 1 lock held by khungtaskd/1570: [ 720.921916] #0: 000000007be40479 (rcu_read_lock){....}, at: debug_show_all_locks+0x53/0x265 [ 720.932439] 3 locks held by kworker/0:3/4720: [ 720.936941] #0: 00000000e5c371db ((wq_completion)"%s"("ipv6_addrconf")){+.+.}, at: process_one_work+0x767/0x1570 [ 720.948930] #1: 00000000f0d74d02 ((addr_chk_work).work){+.+.}, at: process_one_work+0x79c/0x1570 [ 720.958914] #2: 00000000a251d65a (rtnl_mutex){+.+.}, at: addrconf_verify_work+0xa/0x20 [ 720.969180] 1 lock held by in:imklog/7846: [ 720.974100] #0: 00000000876fba3c (&f->f_pos_lock){+.+.}, at: __fdget_pos+0x26f/0x310 [ 720.982901] 1 lock held by syz-executor420/8080: [ 720.987754] #0: 00000000a251d65a (rtnl_mutex){+.+.}, at: tcf_ife_init+0x105b/0x1730 [ 720.996868] 1 lock held by syz-executor420/8093: [ 721.002360] #0: 00000000a251d65a (rtnl_mutex){+.+.}, at: rtnetlink_rcv_msg+0x3fe/0xb80 [ 721.011237] 1 lock held by syz-executor420/8089: [ 721.016011] #0: 00000000a251d65a (rtnl_mutex){+.+.}, at: rtnetlink_rcv_msg+0x3fe/0xb80 [ 721.025359] 1 lock held by syz-executor420/8095: [ 721.030828] #0: 00000000a251d65a (rtnl_mutex){+.+.}, at: rtnetlink_rcv_msg+0x3fe/0xb80 [ 721.039003] 1 lock held by syz-executor420/8090: [ 721.044845] #0: 00000000a251d65a (rtnl_mutex){+.+.}, at: rtnetlink_rcv_msg+0x3fe/0xb80 [ 721.053900] 1 lock held by syz-executor420/8098: [ 721.058655] #0: 00000000a251d65a (rtnl_mutex){+.+.}, at: rtnetlink_rcv_msg+0x3fe/0xb80 [ 721.067961] 2 locks held by syz-executor420/8088: [ 721.073477] 1 lock held by syz-executor420/8094: [ 721.078226] #0: 00000000a251d65a (rtnl_mutex){+.+.}, at: rtnetlink_rcv_msg+0x3fe/0xb80 [ 721.087500] 1 lock held by syz-executor420/8092: [ 721.092958] #0: 00000000a251d65a (rtnl_mutex){+.+.}, at: rtnetlink_rcv_msg+0x3fe/0xb80 [ 721.101891] 1 lock held by syz-executor420/8097: [ 721.106910] #0: 00000000a251d65a (rtnl_mutex){+.+.}, at: rtnetlink_rcv_msg+0x3fe/0xb80 [ 721.116256] 1 lock held by syz-executor420/8091: [ 721.121696] #0: 00000000a251d65a (rtnl_mutex){+.+.}, at: rtnetlink_rcv_msg+0x3fe/0xb80 [ 721.129893] 1 lock held by syz-executor420/8096: [ 721.135891] #0: 00000000a251d65a (rtnl_mutex){+.+.}, at: rtnetlink_rcv_msg+0x3fe/0xb80 [ 721.144844] [ 721.146473] ============================================= [ 721.146473] [ 721.154600] NMI backtrace for cpu 0 [ 721.158250] CPU: 0 PID: 1570 Comm: khungtaskd Not tainted 4.19.211-syzkaller #0 [ 721.165685] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 721.175057] Call Trace: [ 721.177644] dump_stack+0x1fc/0x2ef [ 721.181274] nmi_cpu_backtrace.cold+0x63/0xa2 [ 721.185790] ? lapic_can_unplug_cpu+0x80/0x80 [ 721.190284] nmi_trigger_cpumask_backtrace+0x1a6/0x1f0 [ 721.195565] watchdog+0x991/0xe60 [ 721.199024] ? reset_hung_task_detector+0x30/0x30 [ 721.203867] kthread+0x33f/0x460 [ 721.207228] ? kthread_park+0x180/0x180 [ 721.211202] ret_from_fork+0x24/0x30 [ 721.215059] Sending NMI from CPU 0 to CPUs 1: [ 721.220753] NMI backtrace for cpu 1 [ 721.220759] CPU: 1 PID: 8088 Comm: syz-executor420 Not tainted 4.19.211-syzkaller #0 [ 721.220765] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 721.220769] RIP: 0010:__lock_acquire+0x665/0x3ff0 [ 721.220780] Code: 71 e7 ff ff 85 c0 0f 84 3f fb ff ff 49 8d bd 70 08 00 00 4c 8b 54 24 20 48 b8 00 00 00 00 00 fc ff df 48 89 fa 44 8b 4c 24 28 <48> c1 ea 03 44 8b 44 24 30 0f b6 04 02 84 c0 74 08 3c 03 0f 8e e5 [ 721.220784] RSP: 0018:ffff8880aa396cd8 EFLAGS: 00000002 [ 721.220792] RAX: dffffc0000000000 RBX: 0000000000000005 RCX: 1ffff110162915a2 [ 721.220797] RDX: ffff8880b148acb0 RSI: ffff8880b148acf0 RDI: ffff8880b148acb0 [ 721.220801] RBP: ffff8880b148ad12 R08: 00000000000005c4 R09: 0000000000000001 [ 721.220806] R10: ffff8880b148acf0 R11: 00000000ee11417d R12: 00000000000405c4 [ 721.220811] R13: ffff8880b148a440 R14: ffff8880b148ad08 R15: 0000000000000001 [ 721.220817] FS: 00007fa67ba07700(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000 [ 721.220821] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 721.220825] CR2: 00007fa67b9e6718 CR3: 000000009e7f2000 CR4: 00000000003406e0 [ 721.220829] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 721.220833] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 721.220835] Call Trace: [ 721.220838] ? _raw_spin_unlock_irq+0x24/0x80 [ 721.220841] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 721.220844] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 721.220847] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 721.220850] ? mark_held_locks+0xf0/0xf0 [ 721.220852] ? rcu_nmi_exit+0xb3/0x180 [ 721.220855] ? retint_kernel+0x2d/0x2d [ 721.220858] ? tcf_idr_check_alloc+0x22c/0x320 [ 721.220861] lock_acquire+0x170/0x3c0 [ 721.220863] ? tcf_idr_check_alloc+0x73/0x320 [ 721.220866] _raw_spin_lock+0x2a/0x40 [ 721.220869] ? tcf_idr_check_alloc+0x73/0x320 [ 721.220871] tcf_idr_check_alloc+0x73/0x320 [ 721.220874] tcf_ife_init+0x38e/0x1730 [ 721.220877] ? ife_get_meta_u16+0x180/0x180 [ 721.220879] ? tc_lookup_action_n+0xcd/0xf0 [ 721.220882] tcf_action_init_1+0xa06/0xcd0 [ 721.220885] ? tcf_action_dump_old+0x80/0x80 [ 721.220888] ? memset+0x20/0x40 [ 721.220890] tcf_action_init+0x26e/0x3b0 [ 721.220893] ? tcf_action_init_1+0xcd0/0xcd0 [ 721.220896] tcf_action_add+0xd9/0x360 [ 721.220899] ? tca_action_gd+0x1550/0x1550 [ 721.220901] ? mark_held_locks+0xf0/0xf0 [ 721.220903] ? memset+0x20/0x40 [ 721.220906] ? nla_parse+0x1b2/0x290 [ 721.220909] tc_ctl_action+0x327/0x410 [ 721.220912] ? tcf_action_add+0x360/0x360 [ 721.220914] ? tcf_action_add+0x360/0x360 [ 721.220917] rtnetlink_rcv_msg+0x453/0xb80 [ 721.220920] ? rtnl_calcit.isra.0+0x430/0x430 [ 721.220923] ? __netlink_lookup+0x3fc/0x730 [ 721.220926] ? lock_downgrade+0x720/0x720 [ 721.220929] ? check_preemption_disabled+0x41/0x280 [ 721.220932] netlink_rcv_skb+0x160/0x440 [ 721.220934] ? rtnl_calcit.isra.0+0x430/0x430 [ 721.220937] ? netlink_ack+0xae0/0xae0 [ 721.220940] netlink_unicast+0x4d5/0x690 [ 721.220943] ? netlink_sendskb+0x110/0x110 [ 721.220946] ? _copy_from_iter_full+0x229/0x7c0 [ 721.220949] ? __phys_addr_symbol+0x2c/0x70 [ 721.220952] ? __check_object_size+0x17b/0x3e0 [ 721.220954] netlink_sendmsg+0x6c3/0xc50 [ 721.220957] ? aa_af_perm+0x230/0x230 [ 721.220961] ? nlmsg_notify+0x1f0/0x1f0 [ 721.220964] ? kernel_recvmsg+0x220/0x220 [ 721.220967] ? nlmsg_notify+0x1f0/0x1f0 [ 721.220969] sock_sendmsg+0xc3/0x120 [ 721.220972] ___sys_sendmsg+0x7bb/0x8e0 [ 721.220975] ? copy_msghdr_from_user+0x440/0x440 [ 721.220979] ? do_huge_pmd_anonymous_page+0x935/0x1e60 [ 721.220981] ? __fget+0x32f/0x510 [ 721.220984] ? lock_downgrade+0x720/0x720 [ 721.220987] ? check_preemption_disabled+0x41/0x280 [ 721.220990] ? check_preemption_disabled+0x41/0x280 [ 721.220993] ? __fget+0x356/0x510 [ 721.220995] ? do_dup2+0x450/0x450 [ 721.220998] ? __fdget+0x1d0/0x230 [ 721.221001] __x64_sys_sendmsg+0x132/0x220 [ 721.221004] ? __sys_sendmsg+0x1b0/0x1b0 [ 721.221007] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 721.221010] ? trace_hardirqs_off_caller+0x6e/0x210 [ 721.221013] ? do_syscall_64+0x21/0x620 [ 721.221016] do_syscall_64+0xf9/0x620 [ 721.221019] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 721.221022] RIP: 0033:0x7fa67ba559f9 [ 721.221031] 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 [ 721.221034] RSP: 002b:00007fa67ba07318 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 721.221041] RAX: ffffffffffffffda RBX: 00007fa67badd3e8 RCX: 00007fa67ba559f9 [ 721.221045] RDX: 0000000000000000 RSI: 0000000020000100 RDI: 0000000000000003 [ 721.221049] RBP: 00007fa67badd3e0 R08: 0000000000000000 R09: 0000000000000000 [ 721.221053] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fa67badd3ec [ 721.221057] R13: 00007ffe12eb660f R14: 00007fa67ba07400 R15: 0000000000022000 [ 721.261954] Kernel panic - not syncing: hung_task: blocked tasks [ 721.691893] CPU: 0 PID: 1570 Comm: khungtaskd Not tainted 4.19.211-syzkaller #0 [ 721.699439] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 721.708802] Call Trace: [ 721.711396] dump_stack+0x1fc/0x2ef [ 721.715018] panic+0x26a/0x50e [ 721.718221] ? __warn_printk+0xf3/0xf3 [ 721.722126] ? lapic_can_unplug_cpu+0x80/0x80 [ 721.726724] ? ___preempt_schedule+0x16/0x18 [ 721.731158] ? watchdog+0x991/0xe60 [ 721.734781] ? nmi_trigger_cpumask_backtrace+0x15e/0x1f0 [ 721.740231] watchdog+0x9a2/0xe60 [ 721.743683] ? reset_hung_task_detector+0x30/0x30 [ 721.748519] kthread+0x33f/0x460 [ 721.751901] ? kthread_park+0x180/0x180 [ 721.755901] ret_from_fork+0x24/0x30 [ 721.760005] Kernel Offset: disabled [ 721.763737] Rebooting in 86400 seconds..