[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. [ 86.731366][ T27] kauditd_printk_skb: 4 callbacks suppressed [ 86.731380][ T27] audit: type=1800 audit(1582121338.646:29): pid=10134 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="rc.local" dev="sda1" ino=2432 res=0 [ 86.759788][ T27] audit: type=1800 audit(1582121338.656:30): pid=10134 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="rmnologin" dev="sda1" ino=2423 res=0 Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.88' (ECDSA) to the list of known hosts. syzkaller login: [ 95.741234][T10289] IPVS: ftp: loaded support on port[0] = 21 [ 95.801155][T10289] chnl_net:caif_netlink_parms(): no params data found [ 95.841988][T10289] bridge0: port 1(bridge_slave_0) entered blocking state [ 95.849729][T10289] bridge0: port 1(bridge_slave_0) entered disabled state [ 95.857889][T10289] device bridge_slave_0 entered promiscuous mode [ 95.867429][T10289] bridge0: port 2(bridge_slave_1) entered blocking state [ 95.874568][T10289] bridge0: port 2(bridge_slave_1) entered disabled state [ 95.882640][T10289] device bridge_slave_1 entered promiscuous mode [ 95.901560][T10289] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 95.912465][T10289] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 95.933685][T10289] team0: Port device team_slave_0 added [ 95.941148][T10289] team0: Port device team_slave_1 added [ 95.956895][T10289] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 95.963854][T10289] batman_adv: batadv0: The MTU of interface batadv_slave_0 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 95.990287][T10289] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 96.003374][T10289] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 96.010480][T10289] batman_adv: batadv0: The MTU of interface batadv_slave_1 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 96.036560][T10289] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 96.108803][T10289] device hsr_slave_0 entered promiscuous mode [ 96.146553][T10289] device hsr_slave_1 entered promiscuous mode [ 96.253385][T10289] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 96.299860][T10289] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 96.368965][T10289] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 96.409270][T10289] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 96.484488][T10289] bridge0: port 2(bridge_slave_1) entered blocking state [ 96.491775][T10289] bridge0: port 2(bridge_slave_1) entered forwarding state [ 96.499927][T10289] bridge0: port 1(bridge_slave_0) entered blocking state [ 96.507107][T10289] bridge0: port 1(bridge_slave_0) entered forwarding state [ 96.555900][T10289] 8021q: adding VLAN 0 to HW filter on device bond0 [ 96.570055][ T2696] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 96.581589][ T2696] bridge0: port 1(bridge_slave_0) entered disabled state [ 96.590390][ T2696] bridge0: port 2(bridge_slave_1) entered disabled state [ 96.598990][ T2696] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 96.612426][T10289] 8021q: adding VLAN 0 to HW filter on device team0 [ 96.623394][ T2787] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 96.632106][ T2787] bridge0: port 1(bridge_slave_0) entered blocking state [ 96.639320][ T2787] bridge0: port 1(bridge_slave_0) entered forwarding state [ 96.651712][ T2696] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 96.660979][ T2696] bridge0: port 2(bridge_slave_1) entered blocking state [ 96.668087][ T2696] bridge0: port 2(bridge_slave_1) entered forwarding state [ 96.688013][ T2690] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 96.698666][ T2696] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 96.708895][ T2787] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 96.726458][ T2696] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 96.734584][ T2696] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 96.744661][T10289] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 96.762838][ T2787] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 96.770921][ T2787] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 96.784325][T10289] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 96.804458][ T2787] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 96.825225][T10289] device veth0_vlan entered promiscuous mode [ 96.833412][ T2791] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 96.843426][ T2791] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 96.857091][T10289] device veth1_vlan entered promiscuous mode [ 96.868329][ T2787] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 96.877225][ T2787] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 96.884918][ T2787] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 96.905382][T10289] device veth0_macvtap entered promiscuous mode [ 96.914273][ T2787] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 96.923841][ T2787] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 96.932774][ T2787] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 96.942391][ T2787] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 96.953254][T10289] device veth1_macvtap entered promiscuous mode [ 96.971443][T10289] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 96.979172][ T2696] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 96.987809][ T2696] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 96.997508][ T2696] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 97.011386][T10289] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 97.018880][ T2787] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 97.029353][ T2787] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready executing program [ 97.226619][ C0] ================================================================== [ 97.234977][ C0] BUG: KASAN: use-after-free in find_match+0xb39/0xc90 [ 97.241824][ C0] Read of size 8 at addr ffff88808beb8320 by task ksoftirqd/0/9 [ 97.249450][ C0] [ 97.251767][ C0] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 5.6.0-rc2-syzkaller #0 [ 97.259820][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 97.269879][ C0] Call Trace: [ 97.273183][ C0] dump_stack+0x197/0x210 [ 97.277562][ C0] ? find_match+0xb39/0xc90 [ 97.282071][ C0] print_address_description.constprop.0.cold+0xd4/0x30b [ 97.289182][ C0] ? find_match+0xb39/0xc90 [ 97.293697][ C0] ? find_match+0xb39/0xc90 [ 97.298191][ C0] __kasan_report.cold+0x1b/0x32 [ 97.303293][ C0] ? find_match+0xb39/0xc90 [ 97.307796][ C0] kasan_report+0x12/0x20 [ 97.312144][ C0] __asan_report_load8_noabort+0x14/0x20 [ 97.317805][ C0] find_match+0xb39/0xc90 [ 97.322128][ C0] ? rcu_read_lock_held+0x9c/0xb0 [ 97.327234][ C0] ? rcu_read_lock_held_common+0x130/0x130 [ 97.333076][ C0] __find_rr_leaf+0x14e/0x750 [ 97.337763][ C0] ? nexthop_is_blackhole+0x690/0x690 [ 97.343153][ C0] ? rcu_lockdep_current_cpu_online+0xe3/0x130 [ 97.349308][ C0] ? rcu_read_lock_held+0x9c/0xb0 [ 97.354334][ C0] ? rcu_read_lock_held_common+0x130/0x130 [ 97.360144][ C0] fib6_table_lookup+0x697/0xdb0 [ 97.365081][ C0] ? rt6_age_exceptions+0x130/0x130 [ 97.370284][ C0] ? __kasan_check_read+0x11/0x20 [ 97.376098][ C0] ip6_pol_route+0x1f6/0xa70 [ 97.380696][ C0] ? ip6_pol_route_lookup+0x12e0/0x12e0 [ 97.386338][ C0] ? csum_partial_ext+0x26/0x30 [ 97.391180][ C0] ? __skb_checksum+0x546/0x830 [ 97.396038][ C0] ip6_pol_route_input+0x65/0x80 [ 97.400986][ C0] fib6_rule_lookup+0x133/0x7d0 [ 97.405836][ C0] ? __skb_checksum_complete_head+0x2f0/0x2f0 [ 97.411904][ C0] ? skb_send_sock_locked+0x7e0/0x7e0 [ 97.417260][ C0] ? ip6_pol_route+0xa70/0xa70 [ 97.422017][ C0] ? fib6_lookup+0x340/0x340 [ 97.426602][ C0] ? nf_ip6_checksum+0x107/0x340 [ 97.431534][ C0] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 97.437895][ C0] ? nf_conntrack_icmpv6_error+0x3c1/0x560 [ 97.443703][ C0] ? __sanitizer_cov_trace_switch+0x49/0x80 [ 97.449630][ C0] ip6_route_input_lookup+0xb7/0xd0 [ 97.454837][ C0] ip6_route_input+0x5f0/0xa40 [ 97.459628][ C0] ? ip6_route_check_nh+0x670/0x670 [ 97.464862][ C0] ? cpuup_canceled+0x100/0x1d0 [ 97.469758][ C0] ? rcu_read_lock_held+0x9c/0xb0 [ 97.474789][ C0] ? rcu_read_lock_held_common+0x130/0x130 [ 97.480594][ C0] ip6_rcv_finish_core.isra.0+0x174/0x590 [ 97.486328][ C0] ip6_rcv_finish+0x17a/0x310 [ 97.490994][ C0] ipv6_rcv+0x10e/0x420 [ 97.495314][ C0] ? ip6_rcv_core.isra.0+0x1c30/0x1c30 [ 97.500786][ C0] ? ip6_rcv_finish_core.isra.0+0x590/0x590 [ 97.506684][ C0] ? ip6_rcv_core.isra.0+0x1c30/0x1c30 [ 97.512147][ C0] __netif_receive_skb_one_core+0x113/0x1a0 [ 97.518026][ C0] ? __netif_receive_skb_core+0x30b0/0x30b0 [ 97.523928][ C0] ? lock_acquire+0x190/0x410 [ 97.528634][ C0] ? process_backlog+0x1b5/0x780 [ 97.533597][ C0] __netif_receive_skb+0x2c/0x1d0 [ 97.538615][ C0] process_backlog+0x226/0x780 [ 97.543399][ C0] ? net_rx_action+0x27b/0x1120 [ 97.548258][ C0] ? lockdep_hardirqs_on+0x19e/0x5e0 [ 97.553644][ C0] net_rx_action+0x508/0x1120 [ 97.558331][ C0] ? napi_busy_loop+0x970/0x970 [ 97.563182][ C0] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 97.568721][ C0] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 97.574715][ C0] ? trace_hardirqs_on+0x67/0x240 [ 97.579747][ C0] __do_softirq+0x262/0x98c [ 97.584266][ C0] ? takeover_tasklets+0x820/0x820 [ 97.589367][ C0] run_ksoftirqd+0x8e/0x110 [ 97.593934][ C0] smpboot_thread_fn+0x6a3/0xa40 [ 97.598977][ C0] ? __smpboot_create_thread.part.0+0x340/0x340 [ 97.605246][ C0] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 97.611649][ C0] ? __kthread_parkme+0x108/0x1c0 [ 97.616675][ C0] ? __kasan_check_read+0x11/0x20 [ 97.621717][ C0] kthread+0x361/0x430 [ 97.625793][ C0] ? __smpboot_create_thread.part.0+0x340/0x340 [ 97.632024][ C0] ? kthread_mod_delayed_work+0x1f0/0x1f0 [ 97.637751][ C0] ret_from_fork+0x24/0x30 [ 97.642165][ C0] [ 97.644486][ C0] Allocated by task 10289: [ 97.648903][ C0] save_stack+0x23/0x90 [ 97.653090][ C0] __kasan_kmalloc.constprop.0+0xcf/0xe0 [ 97.658718][ C0] kasan_kmalloc+0x9/0x10 [ 97.663048][ C0] __kmalloc_node+0x4e/0x70 [ 97.667548][ C0] kvmalloc_node+0x68/0x100 [ 97.672093][ C0] alloc_netdev_mqs+0x98/0xe40 [ 97.676843][ C0] vti6_init_net+0x244/0x810 [ 97.681446][ C0] ops_init+0xb3/0x420 [ 97.685528][ C0] setup_net+0x2d5/0x8b0 [ 97.689765][ C0] copy_net_ns+0x29e/0x5a0 [ 97.694307][ C0] create_new_namespaces+0x403/0xb50 [ 97.699579][ C0] unshare_nsproxy_namespaces+0xc2/0x200 [ 97.705219][ C0] ksys_unshare+0x444/0x980 [ 97.709737][ C0] __x64_sys_unshare+0x31/0x40 [ 97.714487][ C0] do_syscall_64+0xfa/0x790 [ 97.718975][ C0] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 97.724859][ C0] [ 97.727178][ C0] Freed by task 10289: [ 97.731242][ C0] save_stack+0x23/0x90 [ 97.735379][ C0] __kasan_slab_free+0x102/0x150 [ 97.740301][ C0] kasan_slab_free+0xe/0x10 [ 97.744839][ C0] kfree+0x10a/0x2c0 [ 97.748821][ C0] __netdev_name_node_alt_destroy+0x1ff/0x2a0 [ 97.754901][ C0] netdev_name_node_alt_destroy+0x57/0x80 [ 97.760627][ C0] rtnl_linkprop.isra.0+0x575/0x6f0 [ 97.765834][ C0] rtnl_dellinkprop+0x46/0x60 [ 97.770496][ C0] rtnetlink_rcv_msg+0x45e/0xaf0 [ 97.775463][ C0] netlink_rcv_skb+0x177/0x450 [ 97.780233][ C0] rtnetlink_rcv+0x1d/0x30 [ 97.784763][ C0] netlink_unicast+0x59e/0x7e0 [ 97.789534][ C0] netlink_sendmsg+0x91c/0xea0 [ 97.794290][ C0] sock_sendmsg+0xd7/0x130 [ 97.798699][ C0] ____sys_sendmsg+0x753/0x880 [ 97.803444][ C0] ___sys_sendmsg+0x100/0x170 [ 97.808123][ C0] __sys_sendmsg+0x105/0x1d0 [ 97.812697][ C0] __x64_sys_sendmsg+0x78/0xb0 [ 97.817490][ C0] do_syscall_64+0xfa/0x790 [ 97.822012][ C0] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 97.828700][ C0] [ 97.831016][ C0] The buggy address belongs to the object at ffff88808beb8000 [ 97.831016][ C0] which belongs to the cache kmalloc-4k of size 4096 [ 97.845066][ C0] The buggy address is located 800 bytes inside of [ 97.845066][ C0] 4096-byte region [ffff88808beb8000, ffff88808beb9000) [ 97.858521][ C0] The buggy address belongs to the page: [ 97.864167][ C0] page:ffffea00022fae00 refcount:1 mapcount:0 mapping:ffff8880aa402000 index:0x0 compound_mapcount: 0 [ 97.875151][ C0] flags: 0xfffe0000010200(slab|head) [ 97.880464][ C0] raw: 00fffe0000010200 ffffea0002558c08 ffffea0002502888 ffff8880aa402000 [ 97.889077][ C0] raw: 0000000000000000 ffff88808beb8000 0000000100000001 0000000000000000 [ 97.897674][ C0] page dumped because: kasan: bad access detected [ 97.904065][ C0] [ 97.906381][ C0] Memory state around the buggy address: [ 97.912019][ C0] ffff88808beb8200: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 97.920086][ C0] ffff88808beb8280: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 97.928164][ C0] >ffff88808beb8300: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 97.936213][ C0] ^ [ 97.941575][ C0] ffff88808beb8380: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 97.949619][ C0] ffff88808beb8400: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 97.957687][ C0] ================================================================== [ 97.965745][ C0] Disabling lock debugging due to kernel taint [ 97.971994][ C0] Kernel panic - not syncing: panic_on_warn set ... [ 97.978594][ C0] CPU: 0 PID: 9 Comm: ksoftirqd/0 Tainted: G B 5.6.0-rc2-syzkaller #0 [ 97.988160][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 97.998207][ C0] Call Trace: [ 98.001512][ C0] dump_stack+0x197/0x210 [ 98.005881][ C0] panic+0x2e3/0x75c [ 98.009781][ C0] ? add_taint.cold+0x16/0x16 [ 98.014466][ C0] ? trace_hardirqs_on+0x5e/0x240 [ 98.019501][ C0] ? trace_hardirqs_on+0x5e/0x240 [ 98.024515][ C0] ? find_match+0xb39/0xc90 [ 98.029036][ C0] end_report+0x47/0x4f [ 98.034148][ C0] ? find_match+0xb39/0xc90 [ 98.038672][ C0] __kasan_report.cold+0xe/0x32 [ 98.043623][ C0] ? find_match+0xb39/0xc90 [ 98.048126][ C0] kasan_report+0x12/0x20 [ 98.052556][ C0] __asan_report_load8_noabort+0x14/0x20 [ 98.058190][ C0] find_match+0xb39/0xc90 [ 98.062520][ C0] ? rcu_read_lock_held+0x9c/0xb0 [ 98.067592][ C0] ? rcu_read_lock_held_common+0x130/0x130 [ 98.073403][ C0] __find_rr_leaf+0x14e/0x750 [ 98.078104][ C0] ? nexthop_is_blackhole+0x690/0x690 [ 98.083606][ C0] ? rcu_lockdep_current_cpu_online+0xe3/0x130 [ 98.090099][ C0] ? rcu_read_lock_held+0x9c/0xb0 [ 98.095198][ C0] ? rcu_read_lock_held_common+0x130/0x130 [ 98.101018][ C0] fib6_table_lookup+0x697/0xdb0 [ 98.106102][ C0] ? rt6_age_exceptions+0x130/0x130 [ 98.111315][ C0] ? __kasan_check_read+0x11/0x20 [ 98.116339][ C0] ip6_pol_route+0x1f6/0xa70 [ 98.120932][ C0] ? ip6_pol_route_lookup+0x12e0/0x12e0 [ 98.126569][ C0] ? csum_partial_ext+0x26/0x30 [ 98.131598][ C0] ? __skb_checksum+0x546/0x830 [ 98.136444][ C0] ip6_pol_route_input+0x65/0x80 [ 98.141390][ C0] fib6_rule_lookup+0x133/0x7d0 [ 98.146270][ C0] ? __skb_checksum_complete_head+0x2f0/0x2f0 [ 98.152354][ C0] ? skb_send_sock_locked+0x7e0/0x7e0 [ 98.157818][ C0] ? ip6_pol_route+0xa70/0xa70 [ 98.162599][ C0] ? fib6_lookup+0x340/0x340 [ 98.167212][ C0] ? nf_ip6_checksum+0x107/0x340 [ 98.172247][ C0] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 98.178606][ C0] ? nf_conntrack_icmpv6_error+0x3c1/0x560 [ 98.184446][ C0] ? __sanitizer_cov_trace_switch+0x49/0x80 [ 98.190383][ C0] ip6_route_input_lookup+0xb7/0xd0 [ 98.195580][ C0] ip6_route_input+0x5f0/0xa40 [ 98.200346][ C0] ? ip6_route_check_nh+0x670/0x670 [ 98.205548][ C0] ? cpuup_canceled+0x100/0x1d0 [ 98.210403][ C0] ? rcu_read_lock_held+0x9c/0xb0 [ 98.215476][ C0] ? rcu_read_lock_held_common+0x130/0x130 [ 98.221368][ C0] ip6_rcv_finish_core.isra.0+0x174/0x590 [ 98.227131][ C0] ip6_rcv_finish+0x17a/0x310 [ 98.231807][ C0] ipv6_rcv+0x10e/0x420 [ 98.236071][ C0] ? ip6_rcv_core.isra.0+0x1c30/0x1c30 [ 98.241639][ C0] ? ip6_rcv_finish_core.isra.0+0x590/0x590 [ 98.247528][ C0] ? ip6_rcv_core.isra.0+0x1c30/0x1c30 [ 98.252994][ C0] __netif_receive_skb_one_core+0x113/0x1a0 [ 98.258883][ C0] ? __netif_receive_skb_core+0x30b0/0x30b0 [ 98.264843][ C0] ? lock_acquire+0x190/0x410 [ 98.269645][ C0] ? process_backlog+0x1b5/0x780 [ 98.274579][ C0] __netif_receive_skb+0x2c/0x1d0 [ 98.279597][ C0] process_backlog+0x226/0x780 [ 98.284350][ C0] ? net_rx_action+0x27b/0x1120 [ 98.289208][ C0] ? lockdep_hardirqs_on+0x19e/0x5e0 [ 98.294510][ C0] net_rx_action+0x508/0x1120 [ 98.299236][ C0] ? napi_busy_loop+0x970/0x970 [ 98.304084][ C0] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 98.309624][ C0] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 98.315673][ C0] ? trace_hardirqs_on+0x67/0x240 [ 98.320701][ C0] __do_softirq+0x262/0x98c [ 98.325213][ C0] ? takeover_tasklets+0x820/0x820 [ 98.330422][ C0] run_ksoftirqd+0x8e/0x110 [ 98.334934][ C0] smpboot_thread_fn+0x6a3/0xa40 [ 98.339878][ C0] ? __smpboot_create_thread.part.0+0x340/0x340 [ 98.346217][ C0] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 98.352447][ C0] ? __kthread_parkme+0x108/0x1c0 [ 98.357514][ C0] ? __kasan_check_read+0x11/0x20 [ 98.362539][ C0] kthread+0x361/0x430 [ 98.366608][ C0] ? __smpboot_create_thread.part.0+0x340/0x340 [ 98.372875][ C0] ? kthread_mod_delayed_work+0x1f0/0x1f0 [ 98.378596][ C0] ret_from_fork+0x24/0x30 [ 98.384688][ C0] Kernel Offset: disabled [ 98.389026][ C0] Rebooting in 86400 seconds..