UBSAN: object-size-mismatch in wg_xmit IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready ================================================================================ UBSAN: object-size-mismatch in ./include/linux/skbuff.h:2039:28 member access within address ffffc90000af71c0 with insufficient space for an object of type 'struct sk_buff' CPU: 0 PID: 107 Comm: kworker/0:2 Not tainted 5.10.107-syzkaller-00420-gec7c9ea9d496 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: ipv6_addrconf addrconf_dad_work Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack_lvl+0x1e2/0x24b lib/dump_stack.c:118 dump_stack+0x15/0x1d lib/dump_stack.c:135 ubsan_epilogue lib/ubsan.c:148 [inline] handle_object_size_mismatch lib/ubsan.c:297 [inline] ubsan_type_mismatch_common+0x1ed/0x3a0 lib/ubsan.c:310 __ubsan_handle_type_mismatch_v1+0x5b/0x70 lib/ubsan.c:339 __skb_queue_before include/linux/skbuff.h:2039 [inline] __skb_queue_tail include/linux/skbuff.h:2072 [inline] wg_xmit+0x4a2/0xae0 drivers/net/wireguard/device.c:185 __netdev_start_xmit include/linux/netdevice.h:4831 [inline] netdev_start_xmit+0x8a/0x160 include/linux/netdevice.h:4845 xmit_one net/core/dev.c:3591 [inline] dev_hard_start_xmit+0x18d/0x2f0 net/core/dev.c:3607 __dev_queue_xmit+0x100c/0x1c30 net/core/dev.c:4173 dev_queue_xmit+0x17/0x20 net/core/dev.c:4206 neigh_connected_output+0x288/0x2b0 net/core/neighbour.c:1531 neigh_output include/net/neighbour.h:524 [inline] ip6_finish_output2+0xde2/0x1440 net/ipv6/ip6_output.c:145 __ip6_finish_output+0x3e4/0x520 net/ipv6/ip6_output.c:210 ip6_finish_output+0x3f/0x220 net/ipv6/ip6_output.c:220 NF_HOOK_COND include/linux/netfilter.h:293 [inline] ip6_output+0x1f8/0x4b0 net/ipv6/ip6_output.c:243 dst_output include/net/dst.h:443 [inline] NF_HOOK+0xdd/0x280 include/linux/netfilter.h:304 ndisc_send_skb+0x646/0x9f0 net/ipv6/ndisc.c:508 ndisc_send_rs+0x26c/0x360 net/ipv6/ndisc.c:702 addrconf_dad_completed+0x4f3/0x9f0 net/ipv6/addrconf.c:4241 addrconf_dad_work+0x9c1/0x1520 process_one_work+0x3ca/0x660 kernel/workqueue.c:2298 worker_thread+0x709/0xa20 kernel/workqueue.c:2444 kthread+0x389/0x3c0 kernel/kthread.c:313 ret_from_fork+0x1f/0x30 ================================================================================ ================================================================================ UBSAN: object-size-mismatch in ./include/linux/skbuff.h:1932:2 member access within address ffffc90000af71c0 with insufficient space for an object of type 'struct sk_buff' CPU: 0 PID: 107 Comm: kworker/0:2 Not tainted 5.10.107-syzkaller-00420-gec7c9ea9d496 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: ipv6_addrconf addrconf_dad_work Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack_lvl+0x1e2/0x24b lib/dump_stack.c:118 dump_stack+0x15/0x1d lib/dump_stack.c:135 ubsan_epilogue lib/ubsan.c:148 [inline] handle_object_size_mismatch lib/ubsan.c:297 [inline] ubsan_type_mismatch_common+0x1ed/0x3a0 lib/ubsan.c:310 __ubsan_handle_type_mismatch_v1+0x5b/0x70 lib/ubsan.c:339 __skb_insert include/linux/skbuff.h:1932 [inline] __skb_queue_before include/linux/skbuff.h:2039 [inline] __skb_queue_tail include/linux/skbuff.h:2072 [inline] wg_xmit+0x513/0xae0 drivers/net/wireguard/device.c:185 __netdev_start_xmit include/linux/netdevice.h:4831 [inline] netdev_start_xmit+0x8a/0x160 include/linux/netdevice.h:4845 xmit_one net/core/dev.c:3591 [inline] dev_hard_start_xmit+0x18d/0x2f0 net/core/dev.c:3607 __dev_queue_xmit+0x100c/0x1c30 net/core/dev.c:4173 dev_queue_xmit+0x17/0x20 net/core/dev.c:4206 neigh_connected_output+0x288/0x2b0 net/core/neighbour.c:1531 neigh_output include/net/neighbour.h:524 [inline] ip6_finish_output2+0xde2/0x1440 net/ipv6/ip6_output.c:145 __ip6_finish_output+0x3e4/0x520 net/ipv6/ip6_output.c:210 ip6_finish_output+0x3f/0x220 net/ipv6/ip6_output.c:220 NF_HOOK_COND include/linux/netfilter.h:293 [inline] ip6_output+0x1f8/0x4b0 net/ipv6/ip6_output.c:243 dst_output include/net/dst.h:443 [inline] NF_HOOK+0xdd/0x280 include/linux/netfilter.h:304 ndisc_send_skb+0x646/0x9f0 net/ipv6/ndisc.c:508 ndisc_send_rs+0x26c/0x360 net/ipv6/ndisc.c:702 addrconf_dad_completed+0x4f3/0x9f0 net/ipv6/addrconf.c:4241 addrconf_dad_work+0x9c1/0x1520 process_one_work+0x3ca/0x660 kernel/workqueue.c:2298 worker_thread+0x709/0xa20 kernel/workqueue.c:2444 kthread+0x389/0x3c0 kernel/kthread.c:313 ret_from_fork+0x1f/0x30 ================================================================================ syzkaller syzkaller login: [ 12.153130][ T23] kauditd_printk_skb: 60 callbacks suppressed [ 12.153142][ T23] audit: type=1400 audit(1648508151.229:71): avc: denied { transition } for pid=290 comm="sshd" path="/bin/sh" dev="sda1" ino=73 scontext=system_u:system_r:initrc_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 12.161594][ T23] audit: type=1400 audit(1648508151.229:72): avc: denied { write } for pid=290 comm="sh" path="pipe:[11524]" dev="pipefs" ino=11524 scontext=root:sysadm_r:sysadm_t tcontext=system_u:system_r:initrc_t tclass=fifo_file permissive=1 [ 12.299962][ T0] NOHZ tick-stop error: Non-RCU local softirq work is pending, handler #80!!! [ 12.303733][ T0] NOHZ tick-stop error: Non-RCU local softirq work is pending, handler #80!!! [ 13.328880][ T0] NOHZ tick-stop error: Non-RCU local softirq work is pending, handler #08!!! [ 13.368894][ T0] NOHZ tick-stop error: Non-RCU local softirq work is pending, handler #80!!! Warning: Permanently added '10.128.1.80' (ECDSA) to the list of known hosts. 2022/03/28 22:55:58 fuzzer started 2022/03/28 22:55:58 connecting to host at 10.128.0.163:34415 2022/03/28 22:55:58 checking machine... 2022/03/28 22:55:58 checking revisions... 2022/03/28 22:55:58 testing simple program... [ 19.318789][ T23] audit: type=1400 audit(1648508158.389:73): avc: denied { getattr } for pid=362 comm="syz-fuzzer" path="user:[4026531837]" dev="nsfs" ino=4026531837 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:nsfs_t tclass=file permissive=1 [ 19.322262][ T23] audit: type=1400 audit(1648508158.399:74): avc: denied { read } for pid=362 comm="syz-fuzzer" dev="nsfs" ino=4026531837 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:nsfs_t tclass=file permissive=1 [ 19.325730][ T23] audit: type=1400 audit(1648508158.399:75): avc: denied { open } for pid=362 comm="syz-fuzzer" path="user:[4026531837]" dev="nsfs" ino=4026531837 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:nsfs_t tclass=file permissive=1 [ 19.329360][ T23] audit: type=1400 audit(1648508158.399:76): avc: denied { read } for pid=362 comm="syz-fuzzer" name="raw-gadget" dev="devtmpfs" ino=165 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:device_t tclass=chr_file permissive=1 [ 19.332638][ T23] audit: type=1400 audit(1648508158.399:77): avc: denied { open } for pid=362 comm="syz-fuzzer" path="/dev/raw-gadget" dev="devtmpfs" ino=165 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:device_t tclass=chr_file permissive=1 [ 19.340267][ T23] audit: type=1400 audit(1648508158.419:78): avc: denied { mounton } for pid=371 comm="syz-executor" path="/syzcgroup/unified" dev="sda1" ino=1136 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:root_t tclass=dir permissive=1 [ 19.350523][ T371] cgroup: Unknown subsys name 'net' [ 19.362913][ T23] audit: type=1400 audit(1648508158.429:79): avc: denied { mount } for pid=371 comm="syz-executor" name="/" dev="cgroup2" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:cgroup_t tclass=filesystem permissive=1 [ 19.390581][ T371] cgroup: Unknown subsys name 'devices' [ 19.390592][ T23] audit: type=1400 audit(1648508158.449:80): avc: denied { unmount } for pid=371 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:cgroup_t tclass=filesystem permissive=1 [ 19.500588][ T371] cgroup: Unknown subsys name 'hugetlb' [ 19.506576][ T371] cgroup: Unknown subsys name 'rlimit' [ 19.600049][ T23] audit: type=1400 audit(1648508158.679:81): avc: denied { setattr } for pid=371 comm="syz-executor" name="raw-gadget" dev="devtmpfs" ino=165 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:device_t tclass=chr_file permissive=1 [ 19.624234][ T23] audit: type=1400 audit(1648508158.699:82): avc: denied { execmem } for pid=372 comm="syz-executor.0" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 19.692535][ T373] bridge0: port 1(bridge_slave_0) entered blocking state [ 19.699803][ T373] bridge0: port 1(bridge_slave_0) entered disabled state [ 19.707491][ T373] device bridge_slave_0 entered promiscuous mode [ 19.714672][ T373] bridge0: port 2(bridge_slave_1) entered blocking state [ 19.721766][ T373] bridge0: port 2(bridge_slave_1) entered disabled state [ 19.729285][ T373] device bridge_slave_1 entered promiscuous mode [ 19.762364][ T373] bridge0: port 2(bridge_slave_1) entered blocking state [ 19.769437][ T373] bridge0: port 2(bridge_slave_1) entered forwarding state [ 19.776727][ T373] bridge0: port 1(bridge_slave_0) entered blocking state [ 19.783772][ T373] bridge0: port 1(bridge_slave_0) entered forwarding state [ 19.803147][ T24] bridge0: port 1(bridge_slave_0) entered disabled state [ 19.811031][ T24] bridge0: port 2(bridge_slave_1) entered disabled state [ 19.818353][ T24] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 19.826261][ T24] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 19.836052][ T47] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 19.844371][ T47] bridge0: port 1(bridge_slave_0) entered blocking state [ 19.851414][ T47] bridge0: port 1(bridge_slave_0) entered forwarding state [ 19.860143][ T24] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 19.870445][ T24] bridge0: port 2(bridge_slave_1) entered blocking state [ 19.877505][ T24] bridge0: port 2(bridge_slave_1) entered forwarding state [ 19.891198][ T24] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 19.904658][ T24] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 19.914163][ T47] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 19.925612][ T24] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 19.942586][ T107] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 19.951656][ T107] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 19.960345][ T107] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 19.971946][ T107] ================================================================================ [ 19.981262][ T107] UBSAN: object-size-mismatch in ./include/linux/skbuff.h:2039:28 [ 19.989085][ T107] member access within address ffffc90000af71c0 with insufficient space [ 19.997427][ T107] for an object of type 'struct sk_buff' [ 20.003088][ T107] CPU: 0 PID: 107 Comm: kworker/0:2 Not tainted 5.10.107-syzkaller-00420-gec7c9ea9d496 #0 [ 20.012973][ T107] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 20.023040][ T107] Workqueue: ipv6_addrconf addrconf_dad_work [ 20.029008][ T107] Call Trace: [ 20.032293][ T107] dump_stack_lvl+0x1e2/0x24b [ 20.036976][ T107] ? show_regs_print_info+0x18/0x18 [ 20.042169][ T107] ? wg_allowedips_lookup_dst+0x190/0x190 [ 20.047878][ T107] dump_stack+0x15/0x1d [ 20.052022][ T107] ubsan_type_mismatch_common+0x1ed/0x3a0 [ 20.057989][ T107] ? __sanitizer_cov_trace_switch+0x74/0x90 [ 20.063869][ T107] __ubsan_handle_type_mismatch_v1+0x5b/0x70 [ 20.069830][ T107] wg_xmit+0x4a2/0xae0 [ 20.073886][ T107] ? wg_stop+0x5d0/0x5d0 [ 20.078109][ T107] ? __sanitizer_cov_trace_const_cmp2+0x19/0x20 [ 20.084331][ T107] netdev_start_xmit+0x8a/0x160 [ 20.089264][ T107] dev_hard_start_xmit+0x18d/0x2f0 [ 20.094362][ T107] __dev_queue_xmit+0x100c/0x1c30 [ 20.099388][ T107] ? dev_queue_xmit+0x20/0x20 [ 20.104054][ T107] ? __sanitizer_cov_trace_const_cmp4+0x19/0x20 [ 20.110285][ T107] ? ndisc_constructor+0x690/0x8a0 [ 20.115377][ T107] ? _raw_write_unlock_bh+0x31/0x47 [ 20.120560][ T107] ? ___neigh_create+0x162d/0x1ab0 [ 20.125654][ T107] ? dev_hard_header+0xdb/0xf0 [ 20.130399][ T107] dev_queue_xmit+0x17/0x20 [ 20.134897][ T107] neigh_connected_output+0x288/0x2b0 [ 20.140250][ T107] ip6_finish_output2+0xde2/0x1440 [ 20.145342][ T107] ? __rcu_read_lock+0x50/0x50 [ 20.150084][ T107] ? __ip6_finish_output+0x520/0x520 [ 20.155361][ T107] ? dst_cow_metrics_generic+0x55/0x1d0 [ 20.160902][ T107] ? __sanitizer_cov_trace_const_cmp4+0x19/0x20 [ 20.167132][ T107] ? ip6_skb_dst_mtu+0xaf/0x260 [ 20.171974][ T107] __ip6_finish_output+0x3e4/0x520 [ 20.177079][ T107] ip6_finish_output+0x3f/0x220 [ 20.181909][ T107] ? ip6_output+0x1d3/0x4b0 [ 20.186406][ T107] ip6_output+0x1f8/0x4b0 [ 20.190713][ T107] ? asan.module_dtor+0x20/0x20 [ 20.195543][ T107] ? skb_dst+0x40/0x40 [ 20.199607][ T107] ? __rcu_read_lock+0x50/0x50 [ 20.204350][ T107] ? selinux_ipv6_forward+0x50/0x50 [ 20.209536][ T107] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 20.215234][ T107] ? nf_hook_slow+0x150/0x1b0 [ 20.219893][ T107] NF_HOOK+0xdd/0x280 [ 20.223857][ T107] ? addrconf_addr_solict_mult+0xe0/0xe0 [ 20.229515][ T107] ? NF_HOOK+0x280/0x280 [ 20.233736][ T107] ? __rcu_read_lock+0x50/0x50 [ 20.238493][ T107] ? __sanitizer_cov_trace_const_cmp4+0x19/0x20 [ 20.244713][ T107] ? ndisc_send_skb+0x547/0x9f0 [ 20.249543][ T107] ? memcpy+0x56/0x70 [ 20.253507][ T107] ndisc_send_skb+0x646/0x9f0 [ 20.258252][ T107] ? slab_post_alloc_hook+0x90/0xa0 [ 20.263441][ T107] ? ndisc_fill_addr_option+0x2f0/0x2f0 [ 20.268964][ T107] ? skb_set_owner_w+0x1a8/0x310 [ 20.273882][ T107] ? __sanitizer_cov_trace_cmp4+0x19/0x20 [ 20.279580][ T107] ? skb_put+0x11d/0x210 [ 20.283803][ T107] ndisc_send_rs+0x26c/0x360 [ 20.288373][ T107] addrconf_dad_completed+0x4f3/0x9f0 [ 20.293725][ T107] ? addrconf_dad_stop+0x430/0x430 [ 20.298817][ T107] ? mutex_unlock+0x34/0x40 [ 20.303299][ T107] addrconf_dad_work+0x9c1/0x1520 [ 20.308393][ T107] ? move_linked_works+0x118/0x130 [ 20.313486][ T107] ? ipv6_use_optimistic_addr+0x1d0/0x1d0 [ 20.319207][ T107] ? __kasan_check_write+0x14/0x20 [ 20.324328][ T107] process_one_work+0x3ca/0x660 [ 20.329175][ T107] worker_thread+0x709/0xa20 [ 20.333758][ T107] ? __kthread_parkme+0x11b/0x150 [ 20.338759][ T107] kthread+0x389/0x3c0 [ 20.342810][ T107] ? pr_cont_work+0x110/0x110 [ 20.347465][ T107] ? __list_add+0xc0/0xc0 [ 20.351773][ T107] ret_from_fork+0x1f/0x30 [ 20.356218][ T107] ================================================================================ [ 20.365532][ T107] ================================================================================ [ 20.374829][ T107] UBSAN: object-size-mismatch in ./include/linux/skbuff.h:1932:2 [ 20.382555][ T107] member access within address ffffc90000af71c0 with insufficient space [ 20.390887][ T107] for an object of type 'struct sk_buff' [ 20.396508][ T107] CPU: 0 PID: 107 Comm: kworker/0:2 Not tainted 5.10.107-syzkaller-00420-gec7c9ea9d496 #0 [ 20.406392][ T107] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 20.416448][ T107] Workqueue: ipv6_addrconf addrconf_dad_work [ 20.422416][ T107] Call Trace: [ 20.425688][ T107] dump_stack_lvl+0x1e2/0x24b [ 20.430376][ T107] ? show_regs_print_info+0x18/0x18 [ 20.435561][ T107] ? wg_allowedips_lookup_dst+0x190/0x190 [ 20.441358][ T107] dump_stack+0x15/0x1d [ 20.445504][ T107] ubsan_type_mismatch_common+0x1ed/0x3a0 [ 20.451215][ T107] __ubsan_handle_type_mismatch_v1+0x5b/0x70 [ 20.457261][ T107] wg_xmit+0x513/0xae0 [ 20.461319][ T107] ? wg_stop+0x5d0/0x5d0 [ 20.465753][ T107] ? __sanitizer_cov_trace_const_cmp2+0x19/0x20 [ 20.472020][ T107] netdev_start_xmit+0x8a/0x160 [ 20.476859][ T107] dev_hard_start_xmit+0x18d/0x2f0 [ 20.481956][ T107] __dev_queue_xmit+0x100c/0x1c30 [ 20.486969][ T107] ? dev_queue_xmit+0x20/0x20 [ 20.491625][ T107] ? __sanitizer_cov_trace_const_cmp4+0x19/0x20 [ 20.497845][ T107] ? ndisc_constructor+0x690/0x8a0 [ 20.502935][ T107] ? _raw_write_unlock_bh+0x31/0x47 [ 20.508112][ T107] ? ___neigh_create+0x162d/0x1ab0 [ 20.513196][ T107] ? dev_hard_header+0xdb/0xf0 [ 20.517952][ T107] dev_queue_xmit+0x17/0x20 [ 20.522437][ T107] neigh_connected_output+0x288/0x2b0 [ 20.527788][ T107] ip6_finish_output2+0xde2/0x1440 [ 20.532877][ T107] ? __rcu_read_lock+0x50/0x50 [ 20.537640][ T107] ? __ip6_finish_output+0x520/0x520 [ 20.542900][ T107] ? dst_cow_metrics_generic+0x55/0x1d0 [ 20.548423][ T107] ? __sanitizer_cov_trace_const_cmp4+0x19/0x20 [ 20.554634][ T107] ? ip6_skb_dst_mtu+0xaf/0x260 [ 20.559464][ T107] __ip6_finish_output+0x3e4/0x520 [ 20.564565][ T107] ip6_finish_output+0x3f/0x220 [ 20.569510][ T107] ? ip6_output+0x1d3/0x4b0 [ 20.574020][ T107] ip6_output+0x1f8/0x4b0 [ 20.578346][ T107] ? asan.module_dtor+0x20/0x20 [ 20.583180][ T107] ? skb_dst+0x40/0x40 [ 20.587245][ T107] ? __rcu_read_lock+0x50/0x50 [ 20.591997][ T107] ? selinux_ipv6_forward+0x50/0x50 [ 20.597191][ T107] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 20.603179][ T107] ? nf_hook_slow+0x150/0x1b0 [ 20.607882][ T107] NF_HOOK+0xdd/0x280 [ 20.611940][ T107] ? addrconf_addr_solict_mult+0xe0/0xe0 [ 20.617566][ T107] ? NF_HOOK+0x280/0x280 [ 20.621940][ T107] ? __rcu_read_lock+0x50/0x50 [ 20.626794][ T107] ? __sanitizer_cov_trace_const_cmp4+0x19/0x20 [ 20.633097][ T107] ? ndisc_send_skb+0x547/0x9f0 [ 20.637960][ T107] ? memcpy+0x56/0x70 [ 20.641927][ T107] ndisc_send_skb+0x646/0x9f0 [ 20.646704][ T107] ? slab_post_alloc_hook+0x90/0xa0 [ 20.651880][ T107] ? ndisc_fill_addr_option+0x2f0/0x2f0 [ 20.657792][ T107] ? skb_set_owner_w+0x1a8/0x310 [ 20.662730][ T107] ? __sanitizer_cov_trace_cmp4+0x19/0x20 [ 20.668433][ T107] ? skb_put+0x11d/0x210 [ 20.672747][ T107] ndisc_send_rs+0x26c/0x360 [ 20.678543][ T107] addrconf_dad_completed+0x4f3/0x9f0 [ 20.684067][ T107] ? addrconf_dad_stop+0x430/0x430 [ 20.689446][ T107] ? mutex_unlock+0x34/0x40 [ 20.693926][ T107] addrconf_dad_work+0x9c1/0x1520 [ 20.699061][ T107] ? move_linked_works+0x118/0x130 [ 20.704244][ T107] ? ipv6_use_optimistic_addr+0x1d0/0x1d0 [ 20.710119][ T107] ? __kasan_check_write+0x14/0x20 [ 20.715228][ T107] process_one_work+0x3ca/0x660 [ 20.720146][ T107] worker_thread+0x709/0xa20 [ 20.724771][ T107] ? __kthread_parkme+0x11b/0x150 [ 20.729782][ T107] kthread+0x389/0x3c0 [ 20.733848][ T107] ? pr_cont_work+0x110/0x110 [ 20.738504][ T107] ? __list_add+0xc0/0xc0 [ 20.742883][ T107] ret_from_fork+0x1f/0x30 [ 20.747354][ T107] ================================================================================ 2022/03/28 22:55:59 building call list... [ 20.759169][ T373] cgroup: cgroup: disabling cgroup2 socket matching due to net_prio or net_cls activation [ 21.322517][ T177] device bridge_slave_1 left promiscuous mode [ 21.328713][ T177] bridge0: port 2(bridge_slave_1) entered disabled state [ 21.336664][ T177] device bridge_slave_0 left promiscuous mode [ 21.342949][ T177] bridge0: port 1(bridge_slave_0) entered disabled state