[ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... [ OK ] Started Update UTMP about System Runlevel Changes. Starting Load/Save RF Kill Switch Status... [ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.1.37' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program syzkaller login: [ 717.850216] INFO: task kworker/0:3:4715 blocked for more than 140 seconds. [ 717.857332] Not tainted 4.19.211-syzkaller #0 [ 717.864380] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 717.873142] kworker/0:3 D27784 4715 2 0x80000000 [ 717.878803] Workqueue: ipv6_addrconf addrconf_verify_work [ 717.885513] Call Trace: [ 717.888113] __schedule+0x887/0x2040 [ 717.893083] ? io_schedule_timeout+0x140/0x140 [ 717.897685] ? lock_downgrade+0x720/0x720 [ 717.903012] ? __mutex_lock+0x418/0x1190 [ 717.907084] schedule+0x8d/0x1b0 [ 717.911554] schedule_preempt_disabled+0xf/0x20 [ 717.916229] __mutex_lock+0x5f0/0x1190 [ 717.921356] ? addrconf_verify_work+0xa/0x20 [ 717.925793] ? mutex_trylock+0x1a0/0x1a0 [ 717.929863] ? _raw_spin_unlock_irqrestore+0x66/0xe0 [ 717.936576] ? process_one_work+0x77b/0x1570 [ 717.941717] ? check_preemption_disabled+0x41/0x280 [ 717.946920] addrconf_verify_work+0xa/0x20 [ 717.952452] process_one_work+0x864/0x1570 [ 717.956724] ? pwq_dec_nr_in_flight+0x2d0/0x2d0 [ 717.963704] worker_thread+0x64c/0x1130 [ 717.967699] ? __kthread_parkme+0x133/0x1e0 [ 717.973461] ? process_one_work+0x1570/0x1570 [ 717.978579] kthread+0x33f/0x460 [ 717.983214] ? kthread_park+0x180/0x180 [ 717.987209] ret_from_fork+0x24/0x30 [ 717.992163] INFO: task syz-executor210:8122 blocked for more than 140 seconds. [ 717.999530] Not tainted 4.19.211-syzkaller #0 [ 718.005691] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 718.014365] syz-executor210 D25528 8122 8116 0x00000004 [ 718.020002] Call Trace: [ 718.023986] __schedule+0x887/0x2040 [ 718.027723] ? io_schedule_timeout+0x140/0x140 [ 718.033413] ? lock_downgrade+0x720/0x720 [ 718.037567] ? __mutex_lock+0x418/0x1190 [ 718.042669] schedule+0x8d/0x1b0 [ 718.046165] schedule_preempt_disabled+0xf/0x20 [ 718.052072] __mutex_lock+0x5f0/0x1190 [ 718.055985] ? tcf_ife_init+0x105b/0x1730 [ 718.061227] ? mutex_trylock+0x1a0/0x1a0 [ 718.065301] ? lock_downgrade+0x720/0x720 [ 718.069454] tcf_ife_init+0x105b/0x1730 [ 718.074918] ? ife_get_meta_u16+0x180/0x180 [ 718.079270] tcf_action_init_1+0xa06/0xcd0 [ 718.084593] ? tcf_action_dump_old+0x80/0x80 [ 718.089024] ? memset+0x20/0x40 [ 718.093367] tcf_action_init+0x26e/0x3b0 [ 718.097440] ? tcf_action_init_1+0xcd0/0xcd0 [ 718.103015] tcf_action_add+0xd9/0x360 [ 718.106914] ? tca_action_gd+0x1550/0x1550 [ 718.112231] ? mark_held_locks+0xf0/0xf0 [ 718.116319] ? memset+0x20/0x40 [ 718.119598] ? nla_parse+0x1b2/0x290 [ 718.124823] tc_ctl_action+0x327/0x410 [ 718.128725] ? tcf_action_add+0x360/0x360 [ 718.133979] ? tcf_action_add+0x360/0x360 [ 718.138138] rtnetlink_rcv_msg+0x453/0xb80 [ 718.144563] ? rtnl_calcit.isra.0+0x430/0x430 [ 718.149068] ? __netlink_lookup+0x3fc/0x730 [ 718.154434] ? lock_downgrade+0x720/0x720 [ 718.158586] ? check_preemption_disabled+0x41/0x280 [ 718.164619] netlink_rcv_skb+0x160/0x440 [ 718.168687] ? rtnl_calcit.isra.0+0x430/0x430 [ 718.174714] ? netlink_ack+0xae0/0xae0 [ 718.178620] netlink_unicast+0x4d5/0x690 [ 718.183738] ? netlink_sendskb+0x110/0x110 [ 718.187977] ? _copy_from_iter_full+0x229/0x7c0 [ 718.193870] ? __phys_addr_symbol+0x2c/0x70 [ 718.198216] ? __check_object_size+0x17b/0x3e0 [ 718.204051] netlink_sendmsg+0x6c3/0xc50 [ 718.208128] ? aa_af_perm+0x230/0x230 [ 718.213023] ? nlmsg_notify+0x1f0/0x1f0 [ 718.217003] ? kernel_recvmsg+0x220/0x220 [ 718.222240] ? nlmsg_notify+0x1f0/0x1f0 [ 718.226570] sock_sendmsg+0xc3/0x120 [ 718.231346] ___sys_sendmsg+0x7bb/0x8e0 [ 718.235324] ? copy_msghdr_from_user+0x440/0x440 [ 718.241120] ? do_huge_pmd_anonymous_page+0x935/0x1e60 [ 718.246405] ? __fget+0x32f/0x510 [ 718.249863] ? lock_downgrade+0x720/0x720 [ 718.255596] ? check_preemption_disabled+0x41/0x280 [ 718.261403] ? check_preemption_disabled+0x41/0x280 [ 718.266430] ? __fget+0x356/0x510 [ 718.269880] ? do_dup2+0x450/0x450 [ 718.274995] ? __fdget+0x1d0/0x230 [ 718.278550] __x64_sys_sendmsg+0x132/0x220 [ 718.283870] ? __sys_sendmsg+0x1b0/0x1b0 [ 718.288032] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 718.294460] ? trace_hardirqs_off_caller+0x6e/0x210 [ 718.299504] ? do_syscall_64+0x21/0x620 [ 718.304586] do_syscall_64+0xf9/0x620 [ 718.308400] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 718.314949] RIP: 0033:0x7f46bee709f9 [ 718.318664] Code: Bad RIP value. [ 718.323159] RSP: 002b:00007f46bee22318 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 718.331652] RAX: ffffffffffffffda RBX: 00007f46beef83e8 RCX: 00007f46bee709f9 [ 718.338924] RDX: 0000000000000000 RSI: 0000000020000100 RDI: 0000000000000003 [ 718.348461] RBP: 00007f46beef83e0 R08: 0000000000000000 R09: 0000000000000000 [ 718.356466] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f46beef83ec [ 718.364398] R13: 00007ffe3a854b8f R14: 00007f46bee22400 R15: 0000000000022000 [ 718.372402] INFO: task syz-executor210:8135 blocked for more than 140 seconds. [ 718.379759] Not tainted 4.19.211-syzkaller #0 [ 718.386030] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 718.394850] syz-executor210 D28528 8135 8116 0x00000004 [ 718.402113] Call Trace: [ 718.404717] __schedule+0x887/0x2040 [ 718.408433] ? io_schedule_timeout+0x140/0x140 [ 718.414475] ? lock_downgrade+0x720/0x720 [ 718.418627] ? __mutex_lock+0x418/0x1190 [ 718.423772] schedule+0x8d/0x1b0 [ 718.427141] schedule_preempt_disabled+0xf/0x20 [ 718.432889] __mutex_lock+0x5f0/0x1190 [ 718.436785] ? apparmor_capable+0x147/0x750 [ 718.442151] ? rtnetlink_rcv_msg+0x3fe/0xb80 [ 718.446563] ? mutex_trylock+0x1a0/0x1a0 [ 718.451700] ? rtnetlink_rcv_msg+0x3c3/0xb80 [ 718.456119] ? check_preemption_disabled+0x41/0x280 [ 718.462298] rtnetlink_rcv_msg+0x3fe/0xb80 [ 718.466543] ? rtnl_calcit.isra.0+0x430/0x430 [ 718.472110] ? __netlink_lookup+0x3fc/0x730 [ 718.476440] ? lock_downgrade+0x720/0x720 [ 718.481651] ? check_preemption_disabled+0x41/0x280 [ 718.486689] netlink_rcv_skb+0x160/0x440 [ 718.491815] ? rtnl_calcit.isra.0+0x430/0x430 [ 718.496316] ? netlink_ack+0xae0/0xae0 [ 718.501260] netlink_unicast+0x4d5/0x690 [ 718.505329] ? netlink_sendskb+0x110/0x110 [ 718.509561] ? _copy_from_iter_full+0x229/0x7c0 [ 718.515789] ? __phys_addr_symbol+0x2c/0x70 [ 718.521590] ? __check_object_size+0x17b/0x3e0 [ 718.526177] netlink_sendmsg+0x6c3/0xc50 [ 718.532475] ? aa_af_perm+0x230/0x230 [ 718.536286] ? nlmsg_notify+0x1f0/0x1f0 [ 718.541294] ? kernel_recvmsg+0x220/0x220 [ 718.545451] ? nlmsg_notify+0x1f0/0x1f0 [ 718.549419] sock_sendmsg+0xc3/0x120 [ 718.554574] ___sys_sendmsg+0x7bb/0x8e0 [ 718.558554] ? copy_msghdr_from_user+0x440/0x440 [ 718.564339] ? __fget+0x32f/0x510 [ 718.567800] ? lock_downgrade+0x720/0x720 [ 718.572999] ? check_preemption_disabled+0x41/0x280 [ 718.578022] ? check_preemption_disabled+0x41/0x280 [ 718.584126] ? __fget+0x356/0x510 [ 718.587585] ? do_dup2+0x450/0x450 [ 718.592232] ? __fdget+0x1d0/0x230 [ 718.595794] __x64_sys_sendmsg+0x132/0x220 [ 718.601071] ? __sys_sendmsg+0x1b0/0x1b0 [ 718.605151] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 718.611818] ? trace_hardirqs_off_caller+0x6e/0x210 [ 718.616864] ? do_syscall_64+0x21/0x620 [ 718.622062] do_syscall_64+0xf9/0x620 [ 718.625880] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 718.632176] RIP: 0033:0x7f46bee709f9 [ 718.635894] Code: Bad RIP value. [ 718.639249] RSP: 002b:00007f46bee01318 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 718.648708] RAX: ffffffffffffffda RBX: 00007f46beef83f8 RCX: 00007f46bee709f9 [ 718.656794] RDX: 0000000000000000 RSI: 0000000020000100 RDI: 0000000000000003 [ 718.664771] RBP: 00007f46beef83f0 R08: 00007f46bee01700 R09: 0000000000000000 [ 718.672791] R10: 00007f46bee01700 R11: 0000000000000246 R12: 00007f46beef83fc [ 718.680733] R13: 00007ffe3a854b8f R14: 00007f46bee01400 R15: 0000000000022000 [ 718.688076] INFO: task syz-executor210:8130 blocked for more than 140 seconds. [ 718.696617] Not tainted 4.19.211-syzkaller #0 [ 718.702361] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 718.711835] syz-executor210 D29048 8130 8121 0x00000004 [ 718.717474] Call Trace: [ 718.721307] __schedule+0x887/0x2040 [ 718.725032] ? io_schedule_timeout+0x140/0x140 [ 718.729613] ? lock_downgrade+0x720/0x720 [ 718.736444] ? __mutex_lock+0x418/0x1190 [ 718.741224] schedule+0x8d/0x1b0 [ 718.744595] schedule_preempt_disabled+0xf/0x20 [ 718.749256] __mutex_lock+0x5f0/0x1190 [ 718.754556] ? apparmor_capable+0x147/0x750 [ 718.758886] ? rtnetlink_rcv_msg+0x3fe/0xb80 [ 718.764353] ? mutex_trylock+0x1a0/0x1a0 [ 718.768420] ? rtnetlink_rcv_msg+0x3c3/0xb80 [ 718.773866] ? check_preemption_disabled+0x41/0x280 [ 718.778893] rtnetlink_rcv_msg+0x3fe/0xb80 [ 718.784215] ? rtnl_calcit.isra.0+0x430/0x430 [ 718.788713] ? __netlink_lookup+0x3fc/0x730 [ 718.794067] ? lock_downgrade+0x720/0x720 [ 718.798223] ? check_preemption_disabled+0x41/0x280 [ 718.804373] netlink_rcv_skb+0x160/0x440 [ 718.808440] ? rtnl_calcit.isra.0+0x430/0x430 [ 718.813980] ? netlink_ack+0xae0/0xae0 [ 718.818227] netlink_unicast+0x4d5/0x690 [ 718.823362] ? netlink_sendskb+0x110/0x110 [ 718.827600] ? _copy_from_iter_full+0x229/0x7c0 [ 718.833395] ? __phys_addr_symbol+0x2c/0x70 [ 718.837727] ? __check_object_size+0x17b/0x3e0 [ 718.843396] netlink_sendmsg+0x6c3/0xc50 [ 718.847465] ? aa_af_perm+0x230/0x230 [ 718.852324] ? nlmsg_notify+0x1f0/0x1f0 [ 718.856299] ? kernel_recvmsg+0x220/0x220 [ 718.861552] ? nlmsg_notify+0x1f0/0x1f0 [ 718.865536] sock_sendmsg+0xc3/0x120 [ 718.869246] ___sys_sendmsg+0x7bb/0x8e0 [ 718.874617] ? copy_msghdr_from_user+0x440/0x440 [ 718.879378] ? do_huge_pmd_anonymous_page+0x935/0x1e60 [ 718.885729] ? __fget+0x32f/0x510 [ 718.889191] ? lock_downgrade+0x720/0x720 [ 718.894603] ? check_preemption_disabled+0x41/0x280 [ 718.899633] ? check_preemption_disabled+0x41/0x280 [ 718.905808] ? __fget+0x356/0x510 [ 718.909269] ? do_dup2+0x450/0x450 [ 718.915039] ? __fdget+0x1d0/0x230 [ 718.918590] __x64_sys_sendmsg+0x132/0x220 [ 718.923908] ? __sys_sendmsg+0x1b0/0x1b0 [ 718.927992] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 718.934383] ? trace_hardirqs_off_caller+0x6e/0x210 [ 718.939424] ? do_syscall_64+0x21/0x620 [ 718.944488] do_syscall_64+0xf9/0x620 [ 718.948298] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 718.954595] RIP: 0033:0x7f46bee709f9 [ 718.958310] Code: Bad RIP value. [ 718.962895] RSP: 002b:00007f46bee22318 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 718.971349] RAX: ffffffffffffffda RBX: 00007f46beef83e8 RCX: 00007f46bee709f9 [ 718.978618] RDX: 0000000000000000 RSI: 0000000020000100 RDI: 0000000000000003 [ 718.987170] RBP: 00007f46beef83e0 R08: 0000000000000000 R09: 0000000000000000 [ 718.995132] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f46beef83ec [ 719.003204] R13: 00007ffe3a854b8f R14: 00007f46bee22400 R15: 0000000000022000 [ 719.011200] INFO: task syz-executor210:8136 blocked for more than 140 seconds. [ 719.018561] Not tainted 4.19.211-syzkaller #0 [ 719.024910] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 719.033738] syz-executor210 D29048 8136 8121 0x00000004 [ 719.039385] Call Trace: [ 719.044046] __schedule+0x887/0x2040 [ 719.047791] ? io_schedule_timeout+0x140/0x140 [ 719.053625] ? lock_downgrade+0x720/0x720 [ 719.057788] ? __mutex_lock+0x418/0x1190 [ 719.062926] schedule+0x8d/0x1b0 [ 719.066301] schedule_preempt_disabled+0xf/0x20 [ 719.072112] __mutex_lock+0x5f0/0x1190 [ 719.076011] ? apparmor_capable+0x147/0x750 [ 719.081542] ? rtnetlink_rcv_msg+0x3fe/0xb80 [ 719.085959] ? mutex_trylock+0x1a0/0x1a0 [ 719.091184] ? rtnetlink_rcv_msg+0x3c3/0xb80 [ 719.095610] ? check_preemption_disabled+0x41/0x280 [ 719.101834] rtnetlink_rcv_msg+0x3fe/0xb80 [ 719.106079] ? rtnl_calcit.isra.0+0x430/0x430 [ 719.112917] ? __netlink_lookup+0x3fc/0x730 [ 719.117258] ? rcu_read_unlock_special+0x7ce/0xfc0 [ 719.123623] netlink_rcv_skb+0x160/0x440 [ 719.127699] ? rtnl_calcit.isra.0+0x430/0x430 [ 719.133523] ? netlink_ack+0xae0/0xae0 [ 719.137443] netlink_unicast+0x4d5/0x690 [ 719.142709] ? netlink_sendskb+0x110/0x110 [ 719.146962] ? _copy_from_iter_full+0x229/0x7c0 [ 719.152796] ? __phys_addr_symbol+0x2c/0x70 [ 719.157130] ? __check_object_size+0x17b/0x3e0 [ 719.162787] netlink_sendmsg+0x6c3/0xc50 [ 719.166858] ? aa_af_perm+0x230/0x230 [ 719.171727] ? nlmsg_notify+0x1f0/0x1f0 [ 719.175705] ? kernel_recvmsg+0x220/0x220 [ 719.179857] ? nlmsg_notify+0x1f0/0x1f0 [ 719.185375] sock_sendmsg+0xc3/0x120 [ 719.189099] ___sys_sendmsg+0x7bb/0x8e0 [ 719.194198] ? copy_msghdr_from_user+0x440/0x440 [ 719.198959] ? __fget+0x32f/0x510 [ 719.203463] ? lock_downgrade+0x720/0x720 [ 719.207615] ? check_preemption_disabled+0x41/0x280 [ 719.213756] ? check_preemption_disabled+0x41/0x280 [ 719.218781] ? __fget+0x356/0x510 [ 719.223402] ? do_dup2+0x450/0x450 [ 719.226953] ? __fdget+0x1d0/0x230 [ 719.231574] __x64_sys_sendmsg+0x132/0x220 [ 719.235815] ? __sys_sendmsg+0x1b0/0x1b0 [ 719.239882] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 719.246854] ? trace_hardirqs_off_caller+0x6e/0x210 [ 719.252594] ? do_syscall_64+0x21/0x620 [ 719.256576] do_syscall_64+0xf9/0x620 [ 719.261464] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 719.266657] RIP: 0033:0x7f46bee709f9 [ 719.271506] Code: Bad RIP value. [ 719.274872] RSP: 002b:00007f46bee01318 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 719.283660] RAX: ffffffffffffffda RBX: 00007f46beef83f8 RCX: 00007f46bee709f9 [ 719.291907] RDX: 0000000000000000 RSI: 0000000020000100 RDI: 0000000000000003 [ 719.299180] RBP: 00007f46beef83f0 R08: 00007f46bee01700 R09: 0000000000000000 [ 719.308886] R10: 00007f46bee01700 R11: 0000000000000246 R12: 00007f46beef83fc [ 719.317027] R13: 00007ffe3a854b8f R14: 00007f46bee01400 R15: 0000000000022000 [ 719.325037] INFO: task syz-executor210:8131 blocked for more than 140 seconds. [ 719.333110] Not tainted 4.19.211-syzkaller #0 [ 719.338117] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 719.347286] syz-executor210 D29048 8131 8119 0x00000004 [ 719.354438] Call Trace: [ 719.357037] __schedule+0x887/0x2040 [ 719.361935] ? io_schedule_timeout+0x140/0x140 [ 719.366525] ? lock_downgrade+0x720/0x720 [ 719.371728] ? __mutex_lock+0x418/0x1190 [ 719.375797] schedule+0x8d/0x1b0 [ 719.379161] schedule_preempt_disabled+0xf/0x20 [ 719.385298] __mutex_lock+0x5f0/0x1190 [ 719.389197] ? apparmor_capable+0x147/0x750 [ 719.394581] ? rtnetlink_rcv_msg+0x3fe/0xb80 [ 719.398992] ? mutex_trylock+0x1a0/0x1a0 [ 719.404131] ? rtnetlink_rcv_msg+0x3c3/0xb80 [ 719.408566] ? check_preemption_disabled+0x41/0x280 [ 719.414768] rtnetlink_rcv_msg+0x3fe/0xb80 [ 719.419024] ? rtnl_calcit.isra.0+0x430/0x430 [ 719.424645] ? __netlink_lookup+0x3fc/0x730 [ 719.428979] ? lock_downgrade+0x720/0x720 [ 719.434213] ? check_preemption_disabled+0x41/0x280 [ 719.439242] netlink_rcv_skb+0x160/0x440 [ 719.444475] ? rtnl_calcit.isra.0+0x430/0x430 [ 719.448987] ? netlink_ack+0xae0/0xae0 [ 719.453972] netlink_unicast+0x4d5/0x690 [ 719.458038] ? netlink_sendskb+0x110/0x110 [ 719.463336] ? _copy_from_iter_full+0x229/0x7c0 [ 719.468013] ? __phys_addr_symbol+0x2c/0x70 [ 719.473358] ? __check_object_size+0x17b/0x3e0 [ 719.477950] netlink_sendmsg+0x6c3/0xc50 [ 719.483209] ? aa_af_perm+0x230/0x230 [ 719.487014] ? nlmsg_notify+0x1f0/0x1f0 [ 719.493373] ? kernel_recvmsg+0x220/0x220 [ 719.497546] ? nlmsg_notify+0x1f0/0x1f0 [ 719.502586] sock_sendmsg+0xc3/0x120 [ 719.506304] ___sys_sendmsg+0x7bb/0x8e0 [ 719.511317] ? copy_msghdr_from_user+0x440/0x440 [ 719.516081] ? do_huge_pmd_anonymous_page+0x935/0x1e60 [ 719.522429] ? __fget+0x32f/0x510 [ 719.525893] ? lock_downgrade+0x720/0x720 [ 719.531067] ? check_preemption_disabled+0x41/0x280 [ 719.536088] ? check_preemption_disabled+0x41/0x280 [ 719.542184] ? __fget+0x356/0x510 [ 719.545648] ? do_dup2+0x450/0x450 [ 719.549197] ? __fdget+0x1d0/0x230 [ 719.554174] __x64_sys_sendmsg+0x132/0x220 [ 719.558414] ? __sys_sendmsg+0x1b0/0x1b0 [ 719.563570] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 719.568938] ? trace_hardirqs_off_caller+0x6e/0x210 [ 719.575765] ? do_syscall_64+0x21/0x620 [ 719.579747] do_syscall_64+0xf9/0x620 [ 719.584631] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 719.589821] RIP: 0033:0x7f46bee709f9 [ 719.594583] Code: Bad RIP value. [ 719.597945] RSP: 002b:00007f46bee22318 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 719.606786] RAX: ffffffffffffffda RBX: 00007f46beef83e8 RCX: 00007f46bee709f9 [ 719.614783] RDX: 0000000000000000 RSI: 0000000020000100 RDI: 0000000000000003 [ 719.622766] RBP: 00007f46beef83e0 R08: 0000000000000000 R09: 0000000000000000 [ 719.630738] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f46beef83ec [ 719.638011] R13: 00007ffe3a854b8f R14: 00007f46bee22400 R15: 0000000000022000 [ 719.646420] INFO: task syz-executor210:8137 blocked for more than 140 seconds. [ 719.654494] Not tainted 4.19.211-syzkaller #0 [ 719.659590] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 719.668637] syz-executor210 D29048 8137 8119 0x00000004 [ 719.675734] Call Trace: [ 719.678331] __schedule+0x887/0x2040 [ 719.683120] ? io_schedule_timeout+0x140/0x140 [ 719.687707] ? lock_downgrade+0x720/0x720 [ 719.694055] ? __mutex_lock+0x418/0x1190 [ 719.698134] schedule+0x8d/0x1b0 [ 719.702534] schedule_preempt_disabled+0xf/0x20 [ 719.707203] __mutex_lock+0x5f0/0x1190 [ 719.712211] ? apparmor_capable+0x147/0x750 [ 719.716540] ? rtnetlink_rcv_msg+0x3fe/0xb80 [ 719.722055] ? mutex_trylock+0x1a0/0x1a0 [ 719.726125] ? rtnetlink_rcv_msg+0x3c3/0xb80 [ 719.731567] ? check_preemption_disabled+0x41/0x280 [ 719.736593] rtnetlink_rcv_msg+0x3fe/0xb80 [ 719.742036] ? rtnl_calcit.isra.0+0x430/0x430 [ 719.746538] ? __netlink_lookup+0x3fc/0x730 [ 719.751942] ? lock_downgrade+0x720/0x720 [ 719.756105] ? check_preemption_disabled+0x41/0x280 [ 719.762201] netlink_rcv_skb+0x160/0x440 [ 719.766268] ? rtnl_calcit.isra.0+0x430/0x430 [ 719.771806] ? netlink_ack+0xae0/0xae0 [ 719.775707] netlink_unicast+0x4d5/0x690 [ 719.779770] ? netlink_sendskb+0x110/0x110 [ 719.785435] ? _copy_from_iter_full+0x229/0x7c0 [ 719.790786] ? __phys_addr_symbol+0x2c/0x70 [ 719.795115] ? __check_object_size+0x17b/0x3e0 [ 719.799701] netlink_sendmsg+0x6c3/0xc50 [ 719.805260] ? aa_af_perm+0x230/0x230 [ 719.809067] ? nlmsg_notify+0x1f0/0x1f0 [ 719.814080] ? kernel_recvmsg+0x220/0x220 [ 719.819281] ? nlmsg_notify+0x1f0/0x1f0 [ 719.824318] sock_sendmsg+0xc3/0x120 [ 719.828036] ___sys_sendmsg+0x7bb/0x8e0 [ 719.833021] ? copy_msghdr_from_user+0x440/0x440 [ 719.837824] ? __fget+0x32f/0x510 [ 719.842343] ? lock_downgrade+0x720/0x720 [ 719.846495] ? check_preemption_disabled+0x41/0x280 [ 719.852562] ? check_preemption_disabled+0x41/0x280 [ 719.857587] ? __fget+0x356/0x510 [ 719.862127] ? do_dup2+0x450/0x450 [ 719.865680] ? __fdget+0x1d0/0x230 [ 719.869222] __x64_sys_sendmsg+0x132/0x220 [ 719.876223] ? __sys_sendmsg+0x1b0/0x1b0 [ 719.880992] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 719.886360] ? trace_hardirqs_off_caller+0x6e/0x210 [ 719.892467] ? do_syscall_64+0x21/0x620 [ 719.896450] do_syscall_64+0xf9/0x620 [ 719.901334] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 719.906526] RIP: 0033:0x7f46bee709f9 [ 719.911301] Code: Bad RIP value. [ 719.914665] RSP: 002b:00007f46bee01318 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 719.923444] RAX: ffffffffffffffda RBX: 00007f46beef83f8 RCX: 00007f46bee709f9 [ 719.931377] RDX: 0000000000000000 RSI: 0000000020000100 RDI: 0000000000000003 [ 719.938646] RBP: 00007f46beef83f0 R08: 00007f46bee01700 R09: 0000000000000000 [ 719.946983] R10: 00007f46bee01700 R11: 0000000000000246 R12: 00007f46beef83fc [ 719.954951] R13: 00007ffe3a854b8f R14: 00007f46bee01400 R15: 0000000000022000 [ 719.962976] INFO: task syz-executor210:8138 blocked for more than 140 seconds. [ 719.970998] Not tainted 4.19.211-syzkaller #0 [ 719.976613] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 719.985743] syz-executor210 D29048 8138 8120 0x00000004 [ 719.993004] Call Trace: [ 719.995614] __schedule+0x887/0x2040 [ 719.999344] ? io_schedule_timeout+0x140/0x140 [ 720.005528] ? lock_downgrade+0x720/0x720 [ 720.009689] ? __mutex_lock+0x418/0x1190 [ 720.014878] schedule+0x8d/0x1b0 [ 720.018255] schedule_preempt_disabled+0xf/0x20 [ 720.024012] __mutex_lock+0x5f0/0x1190 [ 720.027906] ? apparmor_capable+0x147/0x750 [ 720.033251] ? rtnetlink_rcv_msg+0x3fe/0xb80 [ 720.037664] ? mutex_trylock+0x1a0/0x1a0 [ 720.042843] ? rtnetlink_rcv_msg+0x3c3/0xb80 [ 720.047268] ? check_preemption_disabled+0x41/0x280 [ 720.053346] rtnetlink_rcv_msg+0x3fe/0xb80 [ 720.057599] ? rtnl_calcit.isra.0+0x430/0x430 [ 720.063177] ? __netlink_lookup+0x3fc/0x730 [ 720.067507] ? lock_downgrade+0x720/0x720 [ 720.074184] ? check_preemption_disabled+0x41/0x280 [ 720.079234] netlink_rcv_skb+0x160/0x440 [ 720.084423] ? rtnl_calcit.isra.0+0x430/0x430 [ 720.089027] ? netlink_ack+0xae0/0xae0 [ 720.094109] netlink_unicast+0x4d5/0x690 [ 720.098183] ? netlink_sendskb+0x110/0x110 [ 720.103539] ? _copy_from_iter_full+0x229/0x7c0 [ 720.108216] ? __phys_addr_symbol+0x2c/0x70 [ 720.113575] ? __check_object_size+0x17b/0x3e0 [ 720.118163] netlink_sendmsg+0x6c3/0xc50 [ 720.123285] ? aa_af_perm+0x230/0x230 [ 720.127095] ? nlmsg_notify+0x1f0/0x1f0 [ 720.132077] ? kernel_recvmsg+0x220/0x220 [ 720.136234] ? nlmsg_notify+0x1f0/0x1f0 [ 720.141260] sock_sendmsg+0xc3/0x120 [ 720.144976] ___sys_sendmsg+0x7bb/0x8e0 [ 720.148946] ? copy_msghdr_from_user+0x440/0x440 [ 720.155140] ? __fget+0x32f/0x510 [ 720.158601] ? lock_downgrade+0x720/0x720 [ 720.163899] ? check_preemption_disabled+0x41/0x280 [ 720.168925] ? check_preemption_disabled+0x41/0x280 [ 720.175584] ? __fget+0x356/0x510 [ 720.179052] ? do_dup2+0x450/0x450 [ 720.183702] ? __fdget+0x1d0/0x230 [ 720.187252] __x64_sys_sendmsg+0x132/0x220 [ 720.192519] ? __sys_sendmsg+0x1b0/0x1b0 [ 720.196597] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 720.203027] ? trace_hardirqs_off_caller+0x6e/0x210 [ 720.208046] ? do_syscall_64+0x21/0x620 [ 720.213044] do_syscall_64+0xf9/0x620 [ 720.216857] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 720.223111] RIP: 0033:0x7f46bee709f9 [ 720.226825] Code: Bad RIP value. [ 720.231235] RSP: 002b:00007f46bee01318 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 720.238951] RAX: ffffffffffffffda RBX: 00007f46beef83f8 RCX: 00007f46bee709f9 [ 720.247728] RDX: 0000000000000000 RSI: 0000000020000100 RDI: 0000000000000003 [ 720.255841] RBP: 00007f46beef83f0 R08: 00007f46bee01700 R09: 0000000000000000 [ 720.263842] R10: 00007f46bee01700 R11: 0000000000000246 R12: 00007f46beef83fc [ 720.271995] R13: 00007ffe3a854b8f R14: 00007f46bee01400 R15: 0000000000022000 [ 720.279345] INFO: task syz-executor210:8133 blocked for more than 140 seconds. [ 720.289244] Not tainted 4.19.211-syzkaller #0 [ 720.294980] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 720.304574] syz-executor210 D29048 8133 8117 0x00000004 [ 720.311002] Call Trace: [ 720.313731] __schedule+0x887/0x2040 [ 720.317451] ? io_schedule_timeout+0x140/0x140 [ 720.323505] ? lock_downgrade+0x720/0x720 [ 720.327657] ? __mutex_lock+0x418/0x1190 [ 720.332800] schedule+0x8d/0x1b0 [ 720.336175] schedule_preempt_disabled+0xf/0x20 [ 720.341871] __mutex_lock+0x5f0/0x1190 [ 720.345764] ? apparmor_capable+0x147/0x750 [ 720.351147] ? rtnetlink_rcv_msg+0x3fe/0xb80 [ 720.355556] ? mutex_trylock+0x1a0/0x1a0 [ 720.359616] ? rtnetlink_rcv_msg+0x3c3/0xb80 [ 720.365466] ? check_preemption_disabled+0x41/0x280 [ 720.371431] rtnetlink_rcv_msg+0x3fe/0xb80 [ 720.375684] ? rtnl_calcit.isra.0+0x430/0x430 [ 720.381303] ? __netlink_lookup+0x3fc/0x730 [ 720.385639] ? lock_downgrade+0x720/0x720 [ 720.389786] ? check_preemption_disabled+0x41/0x280 [ 720.396332] netlink_rcv_skb+0x160/0x440 [ 720.401076] ? rtnl_calcit.isra.0+0x430/0x430 [ 720.405576] ? netlink_ack+0xae0/0xae0 [ 720.409473] netlink_unicast+0x4d5/0x690 [ 720.415003] ? netlink_sendskb+0x110/0x110 [ 720.419247] ? _copy_from_iter_full+0x229/0x7c0 [ 720.424964] ? __phys_addr_symbol+0x2c/0x70 [ 720.429292] ? __check_object_size+0x17b/0x3e0 [ 720.435016] netlink_sendmsg+0x6c3/0xc50 [ 720.439085] ? aa_af_perm+0x230/0x230 [ 720.443994] ? nlmsg_notify+0x1f0/0x1f0 [ 720.447974] ? kernel_recvmsg+0x220/0x220 [ 720.453203] ? nlmsg_notify+0x1f0/0x1f0 [ 720.457182] sock_sendmsg+0xc3/0x120 [ 720.463179] ___sys_sendmsg+0x7bb/0x8e0 [ 720.467168] ? copy_msghdr_from_user+0x440/0x440 [ 720.472988] ? do_huge_pmd_anonymous_page+0x935/0x1e60 [ 720.478275] ? __fget+0x32f/0x510 [ 720.482774] ? lock_downgrade+0x720/0x720 [ 720.486927] ? check_preemption_disabled+0x41/0x280 [ 720.493042] ? check_preemption_disabled+0x41/0x280 [ 720.498067] ? __fget+0x356/0x510 [ 720.502700] ? do_dup2+0x450/0x450 [ 720.506257] ? __fdget+0x1d0/0x230 [ 720.509801] __x64_sys_sendmsg+0x132/0x220 [ 720.515614] ? __sys_sendmsg+0x1b0/0x1b0 [ 720.519696] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 720.526161] ? trace_hardirqs_off_caller+0x6e/0x210 [ 720.531891] ? do_syscall_64+0x21/0x620 [ 720.535875] do_syscall_64+0xf9/0x620 [ 720.539676] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 720.546301] RIP: 0033:0x7f46bee709f9 [ 720.550713] Code: Bad RIP value. [ 720.554079] RSP: 002b:00007f46bee22318 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 720.562860] RAX: ffffffffffffffda RBX: 00007f46beef83e8 RCX: 00007f46bee709f9 [ 720.570827] RDX: 0000000000000000 RSI: 0000000020000100 RDI: 0000000000000003 [ 720.578095] RBP: 00007f46beef83e0 R08: 0000000000000000 R09: 0000000000000000 [ 720.586482] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f46beef83ec [ 720.594508] R13: 00007ffe3a854b8f R14: 00007f46bee22400 R15: 0000000000022000 [ 720.602520] INFO: task syz-executor210:8139 blocked for more than 140 seconds. [ 720.610567] Not tainted 4.19.211-syzkaller #0 [ 720.615580] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 720.624611] syz-executor210 D29048 8139 8117 0x00000004 [ 720.631699] Call Trace: [ 720.634340] __schedule+0x887/0x2040 [ 720.638057] ? io_schedule_timeout+0x140/0x140 [ 720.644120] ? lock_downgrade+0x720/0x720 [ 720.648276] ? __mutex_lock+0x418/0x1190 [ 720.654577] schedule+0x8d/0x1b0 [ 720.657954] schedule_preempt_disabled+0xf/0x20 [ 720.663677] __mutex_lock+0x5f0/0x1190 [ 720.667574] ? apparmor_capable+0x147/0x750 [ 720.672932] ? rtnetlink_rcv_msg+0x3fe/0xb80 [ 720.677349] ? mutex_trylock+0x1a0/0x1a0 [ 720.682483] ? rtnetlink_rcv_msg+0x3c3/0xb80 [ 720.686905] ? check_preemption_disabled+0x41/0x280 [ 720.692957] rtnetlink_rcv_msg+0x3fe/0xb80 [ 720.697203] ? rtnl_calcit.isra.0+0x430/0x430 [ 720.702780] ? __netlink_lookup+0x3fc/0x730 [ 720.707114] ? lock_downgrade+0x720/0x720 [ 720.712990] ? check_preemption_disabled+0x41/0x280 [ 720.718022] netlink_rcv_skb+0x160/0x440 [ 720.723183] ? rtnl_calcit.isra.0+0x430/0x430 [ 720.727687] ? netlink_ack+0xae0/0xae0 [ 720.732628] netlink_unicast+0x4d5/0x690 [ 720.736703] ? netlink_sendskb+0x110/0x110 [ 720.742005] ? _copy_from_iter_full+0x229/0x7c0 [ 720.746685] ? __phys_addr_symbol+0x2c/0x70 [ 720.752168] ? __check_object_size+0x17b/0x3e0 [ 720.756760] netlink_sendmsg+0x6c3/0xc50 [ 720.761911] ? aa_af_perm+0x230/0x230 [ 720.765715] ? nlmsg_notify+0x1f0/0x1f0 [ 720.769680] ? kernel_recvmsg+0x220/0x220 [ 720.775301] ? nlmsg_notify+0x1f0/0x1f0 [ 720.779282] sock_sendmsg+0xc3/0x120 [ 720.784161] ___sys_sendmsg+0x7bb/0x8e0 [ 720.788142] ? copy_msghdr_from_user+0x440/0x440 [ 720.793974] ? __fget+0x32f/0x510 [ 720.797437] ? lock_downgrade+0x720/0x720 [ 720.802661] ? check_preemption_disabled+0x41/0x280 [ 720.807685] ? check_preemption_disabled+0x41/0x280 [ 720.813742] ? __fget+0x356/0x510 [ 720.817204] ? do_dup2+0x450/0x450 [ 720.821817] ? __fdget+0x1d0/0x230 [ 720.825371] __x64_sys_sendmsg+0x132/0x220 [ 720.829601] ? __sys_sendmsg+0x1b0/0x1b0 [ 720.835122] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 720.843129] ? trace_hardirqs_off_caller+0x6e/0x210 [ 720.848155] ? do_syscall_64+0x21/0x620 [ 720.853139] do_syscall_64+0xf9/0x620 [ 720.856953] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 720.863220] RIP: 0033:0x7f46bee709f9 [ 720.866935] Code: Bad RIP value. [ 720.871330] RSP: 002b:00007f46bee01318 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 720.879047] RAX: ffffffffffffffda RBX: 00007f46beef83f8 RCX: 00007f46bee709f9 [ 720.887572] RDX: 0000000000000000 RSI: 0000000020000100 RDI: 0000000000000003 [ 720.895730] RBP: 00007f46beef83f0 R08: 00007f46bee01700 R09: 0000000000000000 [ 720.903802] R10: 00007f46bee01700 R11: 0000000000000246 R12: 00007f46beef83fc [ 720.911818] R13: 00007ffe3a854b8f R14: 00007f46bee01400 R15: 0000000000022000 [ 720.919254] [ 720.919254] Showing all locks held in the system: [ 720.926692] 1 lock held by khungtaskd/1570: [ 720.931737] #0: 0000000011e217f5 (rcu_read_lock){....}, at: debug_show_all_locks+0x53/0x265 [ 720.941845] 3 locks held by kworker/0:3/4715: [ 720.946427] #0: 0000000097b235c9 ((wq_completion)"%s"("ipv6_addrconf")){+.+.}, at: process_one_work+0x767/0x1570 [ 720.958122] #1: 00000000c7e0cdd5 ((addr_chk_work).work){+.+.}, at: process_one_work+0x79c/0x1570 [ 720.967901] #2: 000000007f957f74 (rtnl_mutex){+.+.}, at: addrconf_verify_work+0xa/0x20 [ 720.976889] 1 lock held by in:imklog/7811: [ 720.981805] #0: 0000000007e7ca26 (&f->f_pos_lock){+.+.}, at: __fdget_pos+0x26f/0x310 [ 720.989804] 1 lock held by syz-executor210/8122: [ 720.995655] #0: 000000007f957f74 (rtnl_mutex){+.+.}, at: tcf_ife_init+0x105b/0x1730 [ 721.004294] 1 lock held by syz-executor210/8135: [ 721.009045] #0: 000000007f957f74 (rtnl_mutex){+.+.}, at: rtnetlink_rcv_msg+0x3fe/0xb80 [ 721.018438] 1 lock held by syz-executor210/8130: [ 721.023893] #0: 000000007f957f74 (rtnl_mutex){+.+.}, at: rtnetlink_rcv_msg+0x3fe/0xb80 [ 721.032770] 1 lock held by syz-executor210/8136: [ 721.037523] #0: 000000007f957f74 (rtnl_mutex){+.+.}, at: rtnetlink_rcv_msg+0x3fe/0xb80 [ 721.046858] 1 lock held by syz-executor210/8131: [ 721.052380] #0: 000000007f957f74 (rtnl_mutex){+.+.}, at: rtnetlink_rcv_msg+0x3fe/0xb80 [ 721.061258] 1 lock held by syz-executor210/8137: [ 721.066012] #0: 000000007f957f74 (rtnl_mutex){+.+.}, at: rtnetlink_rcv_msg+0x3fe/0xb80 [ 721.075316] 1 lock held by syz-executor210/8132: [ 721.080732] 1 lock held by syz-executor210/8138: [ 721.085480] #0: 000000007f957f74 (rtnl_mutex){+.+.}, at: rtnetlink_rcv_msg+0x3fe/0xb80 [ 721.095922] 1 lock held by syz-executor210/8133: [ 721.101351] #0: 000000007f957f74 (rtnl_mutex){+.+.}, at: rtnetlink_rcv_msg+0x3fe/0xb80 [ 721.109523] 1 lock held by syz-executor210/8139: [ 721.115353] #0: 000000007f957f74 (rtnl_mutex){+.+.}, at: rtnetlink_rcv_msg+0x3fe/0xb80 [ 721.124208] 1 lock held by syz-executor210/8134: [ 721.128956] #0: 000000007f957f74 (rtnl_mutex){+.+.}, at: rtnetlink_rcv_msg+0x3fe/0xb80 [ 721.138240] 1 lock held by syz-executor210/8140: [ 721.143666] #0: 000000007f957f74 (rtnl_mutex){+.+.}, at: rtnetlink_rcv_msg+0x3fe/0xb80 [ 721.152587] [ 721.154215] ============================================= [ 721.154215] [ 721.162315] NMI backtrace for cpu 1 [ 721.165950] CPU: 1 PID: 1570 Comm: khungtaskd Not tainted 4.19.211-syzkaller #0 [ 721.173385] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 721.182729] Call Trace: [ 721.185319] dump_stack+0x1fc/0x2ef [ 721.188949] nmi_cpu_backtrace.cold+0x63/0xa2 [ 721.193441] ? lapic_can_unplug_cpu+0x80/0x80 [ 721.197931] nmi_trigger_cpumask_backtrace+0x1a6/0x1f0 [ 721.203642] watchdog+0x991/0xe60 [ 721.207098] ? reset_hung_task_detector+0x30/0x30 [ 721.211933] kthread+0x33f/0x460 [ 721.215296] ? kthread_park+0x180/0x180 [ 721.219270] ret_from_fork+0x24/0x30 [ 721.223081] Sending NMI from CPU 1 to CPUs 0: [ 721.228425] NMI backtrace for cpu 0 [ 721.228431] CPU: 0 PID: 8132 Comm: syz-executor210 Not tainted 4.19.211-syzkaller #0 [ 721.228437] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 721.228440] RIP: 0010:mark_lock+0xa6/0x1160 [ 721.228451] Code: 01 00 00 48 81 eb 50 01 00 00 48 81 c3 80 f5 d5 8c 48 8d 7b 30 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 80 3c 02 00 <0f> 85 04 0d 00 00 4c 89 e0 48 23 43 30 0f 84 ad 00 00 00 b8 01 00 [ 721.228455] RSP: 0018:ffff8880a51e6c88 EFLAGS: 00000046 [ 721.228462] RAX: dffffc0000000000 RBX: ffffffff8cdd8810 RCX: 1ffff11012410d1a [ 721.228467] RDX: 1ffffffff19bb108 RSI: ffff8880920868b0 RDI: ffffffff8cdd8840 [ 721.228472] RBP: ffff8880920868b0 R08: 00000000000005c6 R09: 0000000000000001 [ 721.228477] R10: ffff8880920868b0 R11: 00000000ee11417d R12: 0000000000000100 [ 721.228482] R13: ffff888092086000 R14: ffff8880920868d0 R15: 0000000000000008 [ 721.228487] FS: 00007f46bee22700(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000 [ 721.228492] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 721.228497] CR2: 00007ffc98cc1858 CR3: 00000000aaefa000 CR4: 00000000003406f0 [ 721.228501] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 721.228506] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 721.228509] Call Trace: [ 721.228513] ? finish_task_switch+0x146/0x760 [ 721.228516] __lock_acquire+0x6de/0x3ff0 [ 721.228520] ? _raw_spin_unlock_irq+0x24/0x80 [ 721.228524] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 721.228527] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 721.228531] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 721.228534] ? mark_held_locks+0xf0/0xf0 [ 721.228538] ? rcu_nmi_exit+0xb3/0x180 [ 721.228541] ? retint_kernel+0x2d/0x2d [ 721.228545] ? tcf_idr_check_alloc+0x22c/0x320 [ 721.228548] lock_acquire+0x170/0x3c0 [ 721.228552] ? tcf_idr_check_alloc+0x73/0x320 [ 721.228555] _raw_spin_lock+0x2a/0x40 [ 721.228559] ? tcf_idr_check_alloc+0x73/0x320 [ 721.228562] tcf_idr_check_alloc+0x73/0x320 [ 721.228566] tcf_ife_init+0x38e/0x1730 [ 721.228569] ? ife_get_meta_u16+0x180/0x180 [ 721.228572] ? tc_lookup_action_n+0xcd/0xf0 [ 721.228575] tcf_action_init_1+0xa06/0xcd0 [ 721.228578] ? tcf_action_dump_old+0x80/0x80 [ 721.228581] ? memset+0x20/0x40 [ 721.228583] tcf_action_init+0x26e/0x3b0 [ 721.228586] ? tcf_action_init_1+0xcd0/0xcd0 [ 721.228589] tcf_action_add+0xd9/0x360 [ 721.228592] ? tca_action_gd+0x1550/0x1550 [ 721.228595] ? mark_held_locks+0xf0/0xf0 [ 721.228598] ? memset+0x20/0x40 [ 721.228600] ? nla_parse+0x1b2/0x290 [ 721.228603] tc_ctl_action+0x327/0x410 [ 721.228606] ? tcf_action_add+0x360/0x360 [ 721.228609] ? tcf_action_add+0x360/0x360 [ 721.228612] rtnetlink_rcv_msg+0x453/0xb80 [ 721.228615] ? rtnl_calcit.isra.0+0x430/0x430 [ 721.228618] ? __netlink_lookup+0x3fc/0x730 [ 721.228621] ? lock_downgrade+0x720/0x720 [ 721.228624] ? check_preemption_disabled+0x41/0x280 [ 721.228627] netlink_rcv_skb+0x160/0x440 [ 721.228630] ? rtnl_calcit.isra.0+0x430/0x430 [ 721.228633] ? netlink_ack+0xae0/0xae0 [ 721.228636] netlink_unicast+0x4d5/0x690 [ 721.228639] ? netlink_sendskb+0x110/0x110 [ 721.228642] ? _copy_from_iter_full+0x229/0x7c0 [ 721.228645] ? __phys_addr_symbol+0x2c/0x70 [ 721.228648] ? __check_object_size+0x17b/0x3e0 [ 721.228651] netlink_sendmsg+0x6c3/0xc50 [ 721.228653] ? aa_af_perm+0x230/0x230 [ 721.228656] ? nlmsg_notify+0x1f0/0x1f0 [ 721.228659] ? kernel_recvmsg+0x220/0x220 [ 721.228662] ? nlmsg_notify+0x1f0/0x1f0 [ 721.228665] sock_sendmsg+0xc3/0x120 [ 721.228668] ___sys_sendmsg+0x7bb/0x8e0 [ 721.228671] ? copy_msghdr_from_user+0x440/0x440 [ 721.228674] ? do_huge_pmd_anonymous_page+0x935/0x1e60 [ 721.228677] ? __fget+0x32f/0x510 [ 721.228680] ? lock_downgrade+0x720/0x720 [ 721.228683] ? check_preemption_disabled+0x41/0x280 [ 721.228686] ? check_preemption_disabled+0x41/0x280 [ 721.228689] ? __fget+0x356/0x510 [ 721.228691] ? do_dup2+0x450/0x450 [ 721.228694] ? __fdget+0x1d0/0x230 [ 721.228697] __x64_sys_sendmsg+0x132/0x220 [ 721.228700] ? __sys_sendmsg+0x1b0/0x1b0 [ 721.228703] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 721.228707] ? trace_hardirqs_off_caller+0x6e/0x210 [ 721.228710] ? do_syscall_64+0x21/0x620 [ 721.228712] do_syscall_64+0xf9/0x620 [ 721.228716] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 721.228718] RIP: 0033:0x7f46bee709f9 [ 721.228728] 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 [ 721.228732] RSP: 002b:00007f46bee22318 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 721.228739] RAX: ffffffffffffffda RBX: 00007f46beef83e8 RCX: 00007f46bee709f9 [ 721.228743] RDX: 0000000000000000 RSI: 0000000020000100 RDI: 0000000000000003 [ 721.228748] RBP: 00007f46beef83e0 R08: 0000000000000000 R09: 0000000000000000 [ 721.228752] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f46beef83ec [ 721.228756] R13: 00007ffe3a854b8f R14: 00007f46bee22400 R15: 0000000000022000 [ 721.269037] Kernel panic - not syncing: hung_task: blocked tasks [ 721.708348] CPU: 1 PID: 1570 Comm: khungtaskd Not tainted 4.19.211-syzkaller #0 [ 721.715784] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 721.725125] Call Trace: [ 721.727715] dump_stack+0x1fc/0x2ef [ 721.731341] panic+0x26a/0x50e [ 721.734532] ? __warn_printk+0xf3/0xf3 [ 721.738419] ? lapic_can_unplug_cpu+0x80/0x80 [ 721.742919] ? ___preempt_schedule+0x16/0x18 [ 721.747326] ? watchdog+0x991/0xe60 [ 721.750955] ? nmi_trigger_cpumask_backtrace+0x15e/0x1f0 [ 721.756404] watchdog+0x9a2/0xe60 [ 721.759864] ? reset_hung_task_detector+0x30/0x30 [ 721.764707] kthread+0x33f/0x460 [ 721.768068] ? kthread_park+0x180/0x180 [ 721.772040] ret_from_fork+0x24/0x30 [ 721.776051] Kernel Offset: disabled [ 721.779668] Rebooting in 86400 seconds..