======================================
| [ 27.287134][ T50] br0: port 2(veth2) entered forwarding state
| [ 27.292869][ C0] ------------[ cut here ]------------
| [ 27.293249][ C0] UBSAN: invalid-load in ./include/linux/skbuff.h:4267:9
| [ 27.293627][ C0] load of value 107 is not a valid value for type '_Bool'
[ 27.294397][ C0] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 27.295021][ C0] Workqueue: mld mld_ifc_work
[ 27.295283][ C0] Call Trace:
[ 27.295459][ C0]
[ 27.295611][ C0] dump_stack_lvl (lib/dump_stack.c:107)
[ 27.295852][ C0] __ubsan_handle_load_invalid_value (lib/ubsan.c:218 lib/ubsan.c:419)
[ 27.296180][ C0] br_forward_finish.cold (./include/linux/spinlock.h:396 net/bridge/br.c:81) bridge
[ 27.296594][ C0] deliver_clone (net/bridge/br_forward.c:132) bridge
[ 27.296914][ C0] br_handle_frame_finish (net/bridge/br_input.c:215) bridge
[ 27.297
DETECTED CRASH, lowering timeout
299][ C0] ? __pfx_br_handle_frame_finish (net/bridge/br_input.c:75) bridge
[ 27.297704][ C0] ? __pfx_validate_chain (kernel/locking/lockdep.c:3825)
[ 27.297987][ C0] ? mark_lock (kernel/locking/lockdep.c:4656 (discriminator 3))
[ 27.298214][ C0] ? kasan_save_stack (mm/kasan/common.c:48)
[ 27.298476][ C0] ? __lock_acquire (kernel/locking/lockdep.c:5137)
[ 27.298752][ C0] ? 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)
[ 27.299006][ C0] br_handle_frame (net/bridge/br_input.c:417) bridge
[ 27.299339][ C0] ? __pfx_br_handle_frame (net/bridge/br_input.c:321) bridge
[ 27.299709][ C0] __netif_receive_skb_core.constprop.0 (net/core/dev.c:5448)
[ 27.300072][ C0] ? mark_lock (kernel/locking/lockdep.c:4656 (discriminator 3))
[ 27.300308][ C0] ? __lock_acquire (kernel/locking/lockdep.c:5137)
[ 27.300584][ C0] ? __pfx___netif_receive_skb_core.constprop.0 (net/core/dev.c:5341)
[ 27.300973][ C0] ? lock_acquire.part.0 (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5756)
[ 27.301257][ C0] ? process_backlog (./include/linux/rcupdate.h:298 ./include/linux/rcupdate.h:750 net/core/dev.c:5995)
[ 27.301558][ C0] __netif_receive_skb_one_core (net/core/dev.c:5553)
[ 27.301905][ C0] ? __pfx___netif_receive_skb_one_core (net/core/dev.c:5547)
[ 27.302245][ C0] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5725)
[ 27.302494][ C0] ? process_backlog (./include/linux/rcupdate.h:298 ./include/linux/rcupdate.h:750 net/core/dev.c:5995)
[ 27.302759][ C0] process_backlog (./include/linux/rcupdate.h:779 net/core/dev.c:5997)
[ 27.303017][ C0] __napi_poll.constprop.0 (net/core/dev.c:6625)
[ 27.303302][ C0] net_rx_action (net/core/dev.c:6694 net/core/dev.c:6827)
[ 27.303555][ C0] ? __pfx_net_rx_action (net/core/dev.c:6791)
[ 27.303823][ C0] ? hlock_class (kernel/locking/lockdep.c:223)
[ 27.304069][ C0] ? mark_held_locks (kernel/locking/lockdep.c:4274)
[ 27.304326][ C0] __do_softirq (kernel/softirq.c:553)
[ 27.304568][ C0] ? __dev_queue_xmit (./include/linux/rcupdate.h:308 ./include/linux/rcupdate.h:818 net/core/dev.c:4364)
[ 27.304839][ C0] do_softirq (kernel/softirq.c:454 kernel/softirq.c:441)
[ 27.305063][ C0]
[ 27.305218][ C0]
[ 27.305375][ C0] __local_bh_enable_ip (kernel/softirq.c:381)
[ 27.305643][ C0] ? __dev_queue_xmit (./include/linux/rcupdate.h:308 ./include/linux/rcupdate.h:818 net/core/dev.c:4364)
[ 27.305909][ C0] __dev_queue_xmit (net/core/dev.c:4365)
[ 27.306172][ C0] ? mark_held_locks (kernel/locking/lockdep.c:4274)
[ 27.306424][ C0] ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:4300 kernel/locking/lockdep.c:4359)
[ 27.306769][ C0] ? __pfx___dev_queue_xmit (net/core/dev.c:4246)
[ 27.307049][ C0] ? neigh_hh_output (./include/linux/seqlock.h:74 ./include/linux/seqlock.h:772 ./include/net/neighbour.h:496)
[ 27.307322][ C0] ip6_finish_output2 (./include/net/neighbour.h:540 net/ipv6/ip6_output.c:137)
[ 27.307593][ C0] ip6_finish_output (net/ipv6/ip6_output.c:211 net/ipv6/ip6_output.c:222)
[ 27.307859][ C0] ip6_output (./include/linux/netfilter.h:303 net/ipv6/ip6_output.c:243)
[ 27.308088][ C0] ? __pfx_ip6_output (net/ipv6/ip6_output.c:230)
[ 27.308344][ C0] ? lock_acquire.part.0 (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5756)
[ 27.308619][ C0] ? 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)
[ 27.308856][ C0] ? __lock_release (kernel/locking/lockdep.c:353 kernel/locking/lockdep.c:5436)
[ 27.309118][ C0] NF_HOOK.constprop.0 (./include/linux/rcupdate.h:298 ./include/linux/rcupdate.h:750 ./include/linux/netfilter.h:238 ./include/linux/netfilter.h:312)
[ 27.309384][ C0] ? __pfx_NF_HOOK.constprop.0 (./include/linux/netfilter.h:308)
[ 27.309677][ C0] ? __pfx_xfrm_lookup_with_ifid (net/xfrm/xfrm_policy.c:3133)
[ 27.309985][ C0] ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:4300 kernel/locking/lockdep.c:4359)
[ 27.310327][ C0] ? icmp6_dst_alloc (net/ipv6/route.c:3292)
[ 27.310605][ C0] ? __local_bh_enable_ip (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:77 kernel/softirq.c:386)
[ 27.310885][ C0] mld_sendpack (net/ipv6/mcast.c:1822)
[ 27.311131][ C0] ? __pfx_mld_sendpack (net/ipv6/mcast.c:1779)
[ 27.311405][ C0] ? mld_send_cr (net/ipv6/mcast.c:2096 (discriminator 11))
[ 27.311651][ C0] mld_ifc_work (net/ipv6/mcast.c:2652)
[ 27.311891][ C0] process_one_work (kernel/workqueue.c:2633)
[ 27.312158][ C0] ? 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)
[ 27.312395][ C0] ? __pfx_process_one_work (kernel/workqueue.c:2542)
[ 27.312684][ C0] ? assign_work (kernel/workqueue.c:1101)
[ 27.312929][ C0] worker_thread (kernel/workqueue.c:2700 kernel/workqueue.c:2787)
[ 27.313191][ C0] ? __pfx_worker_thread (kernel/workqueue.c:2733)
[ 27.313456][ C0] kthread (kernel/kthread.c:388)
[ 27.313671][ C0] ? __pfx_kthread (kernel/kthread.c:341)
[ 27.313915][ C0] ret_from_fork (arch/x86/kernel/process.c:147)
[ 27.314149][ C0] ? __pfx_kthread (kernel/kthread.c:341)
Finger prints:
dump_stack_lvl:__ubsan_handle_load_invalid_value:deliver_clone:br_handle_frame_finish