======================================
| [ 169.533185][ T472] br0: port 2(veth2) entered forwarding state
| [ 169.539864][ C2] ------------[ cut here ]------------
| [ 169.540233][ C2] UBSAN: invalid-load in ./include/linux/skbuff.h:4267:9
| [ 169.540612][ C2] load of value 107 is not a valid value for type '_Bool'
[ 169.541390][ C2] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 169.542022][ C2] Workqueue: mld mld_ifc_work
[ 169.542276][ C2] Call Trace:
[ 169.542450][ C2]
[ 169.542632][ C2] dump_stack_lvl (lib/dump_stack.c:107)
[ 169.542896][ C2] __ubsan_handle_load_invalid_value (lib/ubsan.c:218 lib/ubsan.c:419)
[ 169.543247][ C2] br_forward_finish.cold (./include/linux/spinlock.h:396 net/bridge/br.c:81) bridge
[ 169.543631][ C2] deliver_clone (net/bridge/br_forward.c:132) bridge
[ 169.543959][ C2] br_handle_frame_finish (net/bridge/br_input.c:215) bridge
[ 169.54
DETECTED CRASH, lowering timeout
4346][ C2] ? __pfx_br_handle_frame_finish (net/bridge/br_input.c:75) bridge
[ 169.544730][ C2] ? __pfx_validate_chain (kernel/locking/lockdep.c:3825)
[ 169.545009][ C2] ? mark_lock (kernel/locking/lockdep.c:4656 (discriminator 3))
[ 169.545238][ C2] ? kasan_save_stack (mm/kasan/common.c:48)
[ 169.545505][ C2] ? __lock_acquire (kernel/locking/lockdep.c:5137)
[ 169.545772][ C2] ? do_idle (./include/linux/cpumask.h:144 ./include/linux/cpumask.h:151 ./include/linux/cpumask.h:505 ./include/linux/cpumask.h:1120 kernel/sched/idle.c:293)
[ 169.546001][ C2] br_handle_frame (net/bridge/br_input.c:417) bridge
[ 169.546342][ C2] ? __pfx_br_handle_frame (net/bridge/br_input.c:321) bridge
[ 169.546697][ C2] __netif_receive_skb_core.constprop.0 (net/core/dev.c:5448)
[ 169.547052][ C2] ? mark_lock (kernel/locking/lockdep.c:4656 (discriminator 3))
[ 169.547290][ C2] ? __lock_acquire (kernel/locking/lockdep.c:5137)
[ 169.547554][ C2] ? __pfx___netif_receive_skb_core.constprop.0 (net/core/dev.c:5341)
[ 169.547931][ C2] ? lock_acquire.part.0 (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5756)
[ 169.548206][ C2] ? process_backlog (./include/linux/rcupdate.h:298 ./include/linux/rcupdate.h:750 net/core/dev.c:5995)
[ 169.548474][ C2] __netif_receive_skb_one_core (net/core/dev.c:5553)
[ 169.548784][ C2] ? __pfx___netif_receive_skb_one_core (net/core/dev.c:5547)
[ 169.549183][ C2] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5725)
[ 169.549455][ C2] ? process_backlog (./include/linux/rcupdate.h:298 ./include/linux/rcupdate.h:750 net/core/dev.c:5995)
[ 169.549721][ C2] process_backlog (./include/linux/rcupdate.h:779 net/core/dev.c:5997)
[ 169.549979][ C2] __napi_poll.constprop.0 (net/core/dev.c:6625)
[ 169.550267][ C2] net_rx_action (net/core/dev.c:6694 net/core/dev.c:6827)
[ 169.550544][ C2] ? __pfx_net_rx_action (net/core/dev.c:6791)
[ 169.550832][ C2] ? hlock_class (kernel/locking/lockdep.c:223)
[ 169.551098][ C2] ? mark_held_locks (kernel/locking/lockdep.c:4274)
[ 169.551358][ C2] __do_softirq (kernel/softirq.c:553)
[ 169.551619][ C2] ? __dev_queue_xmit (./include/linux/rcupdate.h:308 ./include/linux/rcupdate.h:818 net/core/dev.c:4364)
[ 169.551906][ C2] do_softirq (kernel/softirq.c:454 kernel/softirq.c:441)
[ 169.552142][ C2]
[ 169.552300][ C2]
[ 169.552488][ C2] __local_bh_enable_ip (kernel/softirq.c:381)
[ 169.552820][ C2] ? __dev_queue_xmit (./include/linux/rcupdate.h:308 ./include/linux/rcupdate.h:818 net/core/dev.c:4364)
[ 169.553110][ C2] __dev_queue_xmit (net/core/dev.c:4365)
[ 169.553396][ C2] ? mark_held_locks (kernel/locking/lockdep.c:4274)
[ 169.553693][ C2] ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:4300 kernel/locking/lockdep.c:4359)
[ 169.554055][ C2] ? __pfx___dev_queue_xmit (net/core/dev.c:4246)
[ 169.554345][ C2] ? neigh_hh_output (./include/linux/seqlock.h:74 ./include/linux/seqlock.h:772 ./include/net/neighbour.h:496)
[ 169.554620][ C2] ip6_finish_output2 (./include/net/neighbour.h:540 net/ipv6/ip6_output.c:137)
[ 169.554918][ C2] ip6_finish_output (net/ipv6/ip6_output.c:211 net/ipv6/ip6_output.c:222)
[ 169.555205][ C2] ip6_output (./include/linux/netfilter.h:303 net/ipv6/ip6_output.c:243)
[ 169.555464][ C2] ? __pfx_ip6_output (net/ipv6/ip6_output.c:230)
[ 169.555737][ C2] ? lock_acquire.part.0 (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5756)
[ 169.556023][ 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)
[ 169.556272][ C2] ? __lock_release (kernel/locking/lockdep.c:353 kernel/locking/lockdep.c:5436)
[ 169.556568][ 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)
[ 169.556858][ C2] ? __pfx_NF_HOOK.constprop.0 (./include/linux/netfilter.h:308)
[ 169.557179][ C2] ? __pfx_xfrm_lookup_with_ifid (net/xfrm/xfrm_policy.c:3133)
[ 169.557517][ C2] ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:4300 kernel/locking/lockdep.c:4359)
[ 169.557907][ C2] ? icmp6_dst_alloc (net/ipv6/route.c:3292)
[ 169.558227][ C2] ? __local_bh_enable_ip (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:77 kernel/softirq.c:386)
[ 169.558536][ C2] mld_sendpack (net/ipv6/mcast.c:1822)
[ 169.558785][ C2] ? __pfx_mld_sendpack (net/ipv6/mcast.c:1779)
[ 169.559102][ C2] ? mld_send_cr (net/ipv6/mcast.c:2096 (discriminator 11))
[ 169.559353][ C2] mld_ifc_work (net/ipv6/mcast.c:2652)
[ 169.559591][ C2] process_one_work (kernel/workqueue.c:2633)
[ 169.559860][ 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)
[ 169.560120][ C2] ? __pfx_process_one_work (kernel/workqueue.c:2542)
[ 169.560437][ C2] ? assign_work (kernel/workqueue.c:1101)
[ 169.560687][ C2] worker_thread (kernel/workqueue.c:2700 kernel/workqueue.c:2787)
[ 169.560958][ C2] ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:4300 kernel/locking/lockdep.c:4359)
[ 169.561320][ C2] ? __pfx_worker_thread (kernel/workqueue.c:2733)
[ 169.561613][ C2] ? __pfx_worker_thread (kernel/workqueue.c:2733)
[ 169.561884][ C2] kthread (kernel/kthread.c:388)
[ 169.562121][ C2] ? __pfx_kthread (kernel/kthread.c:341)
[ 169.562383][ C2] ret_from_fork (arch/x86/kernel/process.c:147)
[ 169.562617][ C2] ? __pfx_kthread (kernel/kthread.c:341)
Finger prints:
dump_stack_lvl:__ubsan_handle_load_invalid_value:deliver_clone:br_handle_frame_finish