======================================
| [ 126.204261][ T33] br1: port 2(veth2) entered forwarding state
| [ 126.209655][ C2] ------------[ cut here ]------------
| [ 126.210123][ C2] UBSAN: invalid-load in ./include/linux/skbuff.h:4267:9
| [ 126.210513][ C2] load of value 107 is not a valid value for type '_Bool'
[ 126.211289][ C2] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 126.211930][ C2] Workqueue: mld mld_ifc_work
[ 126.212188][ C2] Call Trace:
[ 126.212372][ C2]
[ 126.212528][ C2] dump_stack_lvl (lib/dump_stack.c:107)
[ 126.212771][ C2] __ubsan_handle_load_invalid_value (lib/ubsan.c:218 lib/ubsan.c:419)
[ 126.213105][ C2] br_forward_finish.cold (./include/linux/spinlock.h:396 net/bridge/br.c:81) bridge
[ 126.213513][ C2] deliver_clone (net/bridge/br_forward.c:132) bridge
[ 126.213838][ C2] br_handle_frame_finish (net/bridge/br_input.c:215) bridge
[ 126.21
DETECTED CRASH, lowering timeout
4244][ C2] ? __pfx_br_handle_frame_finish (net/bridge/br_input.c:75) bridge
[ 126.214671][ C2] ? __pfx_update_sd_lb_stats.constprop.0 (kernel/sched/fair.c:10557)
[ 126.215051][ C2] ? __pfx_nf_ingress (net/core/dev.c:5324)
[ 126.215360][ C2] br_handle_frame (net/bridge/br_input.c:417) bridge
[ 126.215727][ C2] ? __pfx_br_handle_frame (net/bridge/br_input.c:321) bridge
[ 126.216108][ C2] __netif_receive_skb_core.constprop.0 (net/core/dev.c:5448)
[ 126.216469][ C2] ? mark_lock (kernel/locking/lockdep.c:4656 (discriminator 3))
[ 126.216709][ C2] ? __lock_acquire (kernel/locking/lockdep.c:5137)
[ 126.216975][ C2] ? __pfx___netif_receive_skb_core.constprop.0 (net/core/dev.c:5341)
[ 126.217364][ C2] ? lock_acquire.part.0 (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5756)
[ 126.217635][ C2] ? process_backlog (./include/linux/rcupdate.h:298 ./include/linux/rcupdate.h:750 net/core/dev.c:5995)
[ 126.217900][ C2] __netif_receive_skb_one_core (net/core/dev.c:5553)
[ 126.218208][ C2] ? __pfx___netif_receive_skb_one_core (net/core/dev.c:5547)
[ 126.218555][ C2] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5725)
[ 126.218803][ C2] ? process_backlog (./include/linux/rcupdate.h:298 ./include/linux/rcupdate.h:750 net/core/dev.c:5995)
[ 126.219069][ C2] process_backlog (./include/linux/rcupdate.h:779 net/core/dev.c:5997)
[ 126.219345][ C2] __napi_poll.constprop.0 (net/core/dev.c:6625)
[ 126.219655][ C2] net_rx_action (net/core/dev.c:6694 net/core/dev.c:6827)
[ 126.219905][ C2] ? swake_up_one (./include/linux/list.h:373 kernel/sched/swait.c:25 kernel/sched/swait.c:52)
[ 126.220151][ C2] ? __pfx_net_rx_action (net/core/dev.c:6791)
[ 126.220436][ C2] ? hlock_class (kernel/locking/lockdep.c:223)
[ 126.220682][ C2] ? mark_held_locks (kernel/locking/lockdep.c:4274)
[ 126.220940][ C2] __do_softirq (kernel/softirq.c:553)
[ 126.221186][ C2] ? __dev_queue_xmit (./include/linux/rcupdate.h:308 ./include/linux/rcupdate.h:818 net/core/dev.c:4364)
[ 126.221483][ C2] do_softirq (kernel/softirq.c:454 kernel/softirq.c:441)
[ 126.221707][ C2]
[ 126.221862][ C2]
[ 126.222019][ C2] __local_bh_enable_ip (kernel/softirq.c:381)
[ 126.222285][ C2] ? __dev_queue_xmit (./include/linux/rcupdate.h:308 ./include/linux/rcupdate.h:818 net/core/dev.c:4364)
[ 126.222568][ C2] __dev_queue_xmit (net/core/dev.c:4365)
[ 126.222851][ C2] ? mark_held_locks (kernel/locking/lockdep.c:4274)
[ 126.223123][ C2] ? eth_header (net/ethernet/eth.c:100)
[ 126.223378][ C2] ? __pfx___dev_queue_xmit (net/core/dev.c:4246)
[ 126.223658][ C2] ? neigh_resolve_output (./include/linux/netdevice.h:3226 net/core/neighbour.c:1558 net/core/neighbour.c:1543)
[ 126.223953][ C2] ip6_finish_output2 (./include/net/neighbour.h:542 net/ipv6/ip6_output.c:137)
[ 126.224243][ C2] ip6_finish_output (net/ipv6/ip6_output.c:211 net/ipv6/ip6_output.c:222)
[ 126.224534][ C2] ip6_output (./include/linux/netfilter.h:303 net/ipv6/ip6_output.c:243)
[ 126.224777][ C2] ? __pfx_ip6_output (net/ipv6/ip6_output.c:230)
[ 126.225053][ C2] ? lock_acquire.part.0 (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5756)
[ 126.225351][ C2] ? hlock_class (./arch/x86/include/asm/bitops.h:227 ./arch/x86/include/asm/bitops.h:239 ./include/asm-generic/bitops/instrumented-non-atomic.h:142 kernel/locking/lockdep.c:228)
[ 126.225619][ C2] ? __lock_release (kernel/locking/lockdep.c:353 kernel/locking/lockdep.c:5436)
[ 126.225900][ C2] NF_HOOK.constprop.0 (./include/linux/rcupdate.h:298 ./include/linux/rcupdate.h:750 ./include/linux/netfilter.h:238 ./include/linux/netfilter.h:312)
[ 126.226186][ C2] ? __pfx_NF_HOOK.constprop.0 (./include/linux/netfilter.h:308)
[ 126.226502][ C2] ? __pfx_xfrm_lookup_with_ifid (net/xfrm/xfrm_policy.c:3133)
[ 126.226826][ C2] ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:4300 kernel/locking/lockdep.c:4359)
[ 126.227171][ C2] ? icmp6_dst_alloc (net/ipv6/route.c:3292)
[ 126.227448][ C2] ? __local_bh_enable_ip (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:77 kernel/softirq.c:386)
[ 126.227753][ C2] mld_sendpack (net/ipv6/mcast.c:1822)
[ 126.228017][ C2] ? __pfx_mld_sendpack (net/ipv6/mcast.c:1779)
[ 126.228320][ C2] ? mld_send_cr (net/ipv6/mcast.c:2096 (discriminator 11))
[ 126.228576][ C2] mld_ifc_work (net/ipv6/mcast.c:2652)
[ 126.228836][ C2] process_one_work (kernel/workqueue.c:2633)
[ 126.229122][ C2] ? hlock_class (./arch/x86/include/asm/bitops.h:227 ./arch/x86/include/asm/bitops.h:239 ./include/asm-generic/bitops/instrumented-non-atomic.h:142 kernel/locking/lockdep.c:228)
[ 126.229388][ C2] ? __pfx_process_one_work (kernel/workqueue.c:2542)
[ 126.229697][ C2] ? assign_work (kernel/workqueue.c:1101)
[ 126.229947][ C2] worker_thread (kernel/workqueue.c:2700 kernel/workqueue.c:2787)
[ 126.230213][ C2] ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:4300 kernel/locking/lockdep.c:4359)
[ 126.230582][ C2] ? __pfx_worker_thread (kernel/workqueue.c:2733)
[ 126.230869][ C2] ? __pfx_worker_thread (kernel/workqueue.c:2733)
[ 126.231155][ C2] kthread (kernel/kthread.c:388)
[ 126.231400][ C2] ? __pfx_kthread (kernel/kthread.c:341)
[ 126.231647][ C2] ret_from_fork (arch/x86/kernel/process.c:147)
[ 126.231898][ C2] ? __pfx_kthread (kernel/kthread.c:341)
Finger prints:
dump_stack_lvl:__ubsan_handle_load_invalid_value:deliver_clone:br_handle_frame_finish