======================================
| [ 1667.704103][ T234] br0: port 2(veth2) entered forwarding state
| [ 1667.709241][ C2] ------------[ cut here ]------------
| [ 1667.709659][ C2] UBSAN: invalid-load in ./include/linux/skbuff.h:4267:9
| [ 1667.710065][ C2] load of value 107 is not a valid value for type '_Bool'
[ 1667.710882][ C2] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 1667.711568][ C2] Workqueue: mld mld_ifc_work
[ 1667.711861][ C2] Call Trace:
[ 1667.712049][ C2]
[ 1667.712225][ C2] dump_stack_lvl (lib/dump_stack.c:107)
[ 1667.712479][ C2] __ubsan_handle_load_invalid_value (lib/ubsan.c:218 lib/ubsan.c:419)
[ 1667.712842][ C2] br_forward_finish.cold (./include/linux/spinlock.h:396 net/bridge/br.c:81) bridge
[ 1667.713227][ C2] deliver_clone (net/bridge/br_forward.c:132) bridge
[ 1667.713577][ C2] br_handle_frame_finish (net/bridge/br_input.c:215) bridge
[ 1667.7
DETECTED CRASH, lowering timeout
13975][ C2] ? __pfx_br_handle_frame_finish (net/bridge/br_input.c:75) bridge
[ 1667.714377][ C2] ? __pfx_validate_chain (kernel/locking/lockdep.c:3825)
[ 1667.714664][ 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)
[ 1667.714925][ C2] ? __pfx_validate_chain (kernel/locking/lockdep.c:3825)
[ 1667.715218][ C2] br_handle_frame (net/bridge/br_input.c:417) bridge
[ 1667.715556][ C2] ? __pfx_br_handle_frame (net/bridge/br_input.c:321) bridge
[ 1667.715931][ C2] __netif_receive_skb_core.constprop.0 (net/core/dev.c:5448)
[ 1667.716298][ C2] ? mark_lock (kernel/locking/lockdep.c:4656 (discriminator 3))
[ 1667.716538][ C2] ? __lock_acquire (kernel/locking/lockdep.c:5137)
[ 1667.716809][ C2] ? __pfx___netif_receive_skb_core.constprop.0 (net/core/dev.c:5341)
[ 1667.717199][ C2] ? lock_acquire.part.0 (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5756)
[ 1667.717479][ C2] ? process_backlog (./include/linux/rcupdate.h:298 ./include/linux/rcupdate.h:750 net/core/dev.c:5995)
[ 1667.717755][ C2] __netif_receive_skb_one_core (net/core/dev.c:5553)
[ 1667.718073][ C2] ? __pfx___netif_receive_skb_one_core (net/core/dev.c:5547)
[ 1667.718423][ C2] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5725)
[ 1667.718675][ C2] ? process_backlog (./include/linux/rcupdate.h:298 ./include/linux/rcupdate.h:750 net/core/dev.c:5995)
[ 1667.718949][ C2] process_backlog (./include/linux/rcupdate.h:779 net/core/dev.c:5997)
[ 1667.719219][ C2] __napi_poll.constprop.0 (net/core/dev.c:6625)
[ 1667.719511][ C2] net_rx_action (net/core/dev.c:6694 net/core/dev.c:6827)
[ 1667.719775][ C2] ? __pfx_net_rx_action (net/core/dev.c:6791)
[ 1667.720051][ C2] ? hlock_class (kernel/locking/lockdep.c:223)
[ 1667.720302][ C2] ? mark_held_locks (kernel/locking/lockdep.c:4274)
[ 1667.720565][ C2] __do_softirq (kernel/softirq.c:553)
[ 1667.720818][ C2] ? __dev_queue_xmit (./include/linux/rcupdate.h:308 ./include/linux/rcupdate.h:818 net/core/dev.c:4364)
[ 1667.721096][ C2] do_softirq (kernel/softirq.c:454 kernel/softirq.c:441)
[ 1667.721326][ C2]
[ 1667.721488][ C2]
[ 1667.721647][ C2] __local_bh_enable_ip (kernel/softirq.c:381)
[ 1667.721921][ C2] ? __dev_queue_xmit (./include/linux/rcupdate.h:308 ./include/linux/rcupdate.h:818 net/core/dev.c:4364)
[ 1667.722195][ C2] __dev_queue_xmit (net/core/dev.c:4365)
[ 1667.722465][ C2] ? mark_held_locks (kernel/locking/lockdep.c:4274)
[ 1667.722727][ C2] ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:4300 kernel/locking/lockdep.c:4359)
[ 1667.723078][ C2] ? __pfx___dev_queue_xmit (net/core/dev.c:4246)
[ 1667.723367][ C2] ? neigh_hh_output (./include/linux/seqlock.h:74 ./include/linux/seqlock.h:772 ./include/net/neighbour.h:496)
[ 1667.723653][ C2] ip6_finish_output2 (./include/net/neighbour.h:540 net/ipv6/ip6_output.c:137)
[ 1667.723932][ C2] ip6_finish_output (net/ipv6/ip6_output.c:211 net/ipv6/ip6_output.c:222)
[ 1667.724205][ C2] ip6_output (./include/linux/netfilter.h:303 net/ipv6/ip6_output.c:243)
[ 1667.724443][ C2] ? __pfx_ip6_output (net/ipv6/ip6_output.c:230)
[ 1667.724710][ C2] ? lock_acquire.part.0 (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5756)
[ 1667.724993][ 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)
[ 1667.725242][ C2] ? __lock_release (kernel/locking/lockdep.c:353 kernel/locking/lockdep.c:5436)
[ 1667.725509][ 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)
[ 1667.725788][ C2] ? __pfx_NF_HOOK.constprop.0 (./include/linux/netfilter.h:308)
[ 1667.726092][ C2] ? __pfx_xfrm_lookup_with_ifid (net/xfrm/xfrm_policy.c:3133)
[ 1667.726407][ C2] ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:4300 kernel/locking/lockdep.c:4359)
[ 1667.726764][ C2] ? icmp6_dst_alloc (net/ipv6/route.c:3292)
[ 1667.727032][ C2] ? __local_bh_enable_ip (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:77 kernel/softirq.c:386)
[ 1667.727321][ C2] mld_sendpack (net/ipv6/mcast.c:1822)
[ 1667.727577][ C2] ? __pfx_mld_sendpack (net/ipv6/mcast.c:1779)
[ 1667.727858][ C2] ? mld_send_cr (net/ipv6/mcast.c:2096 (discriminator 11))
[ 1667.728116][ C2] mld_ifc_work (net/ipv6/mcast.c:2652)
[ 1667.728362][ C2] process_one_work (kernel/workqueue.c:2633)
[ 1667.728638][ 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)
[ 1667.728882][ C2] ? __pfx_process_one_work (kernel/workqueue.c:2542)
[ 1667.729181][ C2] ? assign_work (kernel/workqueue.c:1101)
[ 1667.729436][ C2] worker_thread (kernel/workqueue.c:2700 kernel/workqueue.c:2787)
[ 1667.729710][ C2] ? __pfx_worker_thread (kernel/workqueue.c:2733)
[ 1667.729985][ C2] kthread (kernel/kthread.c:388)
[ 1667.730207][ C2] ? __pfx_kthread (kernel/kthread.c:341)
[ 1667.730458][ C2] ret_from_fork (arch/x86/kernel/process.c:147)
[ 1667.730708][ C2] ? __pfx_kthread (kernel/kthread.c:341)
Finger prints:
dump_stack_lvl:__ubsan_handle_load_invalid_value:deliver_clone:br_handle_frame_finish