======================================
| [ 31.515701][ T47] br0: port 2(eth1) entered forwarding state
| [ 31.520605][ C1] ------------[ cut here ]------------
| [ 31.520961][ C1] UBSAN: invalid-load in ./include/linux/skbuff.h:4267:9
| [ 31.521337][ C1] load of value 107 is not a valid value for type '_Bool'
[ 31.522122][ C1] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 31.522748][ C1] Workqueue: mld mld_ifc_work
[ 31.523006][ C1] Call Trace:
[ 31.523185][ C1]
[ 31.523346][ C1] dump_stack_lvl (lib/dump_stack.c:107)
[ 31.523588][ C1] __ubsan_handle_load_invalid_value (lib/ubsan.c:218 lib/ubsan.c:419)
[ 31.523917][ C1] br_forward_finish.cold (./include/linux/skbuff.h:4267 net/bridge/br_forward.c:65)
[ 31.524188][ C1] deliver_clone (net/bridge/br_forward.c:132)
[ 31.524434][ C1] br_handle_frame_finish (net/bridge/br_input.c:215)
[ 31.524728][ C1] ? __pfx_br_handle_frame_finish (net/bridge/br_input.c:75)
[ 31.525045][ C1] ? __pfx_update_sd_lb_stats.constprop.0 (kernel/sched/fair.c:10557)
[ 31.525404][ C1] br_han
DETECTED CRASH, lowering timeout
dle_frame+0x60d/0xd60
[ 31.525668][ C1] ? __pfx_br_handle_frame (net/bridge/br_input.c:321)
[ 31.525956][ C1] __netif_receive_skb_core.constprop.0 (net/core/dev.c:5448)
[ 31.526344][ C1] ? mark_lock (kernel/locking/lockdep.c:4656 (discriminator 3))
[ 31.526600][ C1] ? __lock_acquire (kernel/locking/lockdep.c:5137)
[ 31.526890][ C1] ? __pfx___netif_receive_skb_core.constprop.0 (net/core/dev.c:5341)
[ 31.527292][ C1] ? lock_acquire.part.0 (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5756)
[ 31.527577][ C1] ? process_backlog (./include/linux/rcupdate.h:298 ./include/linux/rcupdate.h:750 net/core/dev.c:5995)
[ 31.527860][ C1] __netif_receive_skb_one_core (net/core/dev.c:5553)
[ 31.528191][ C1] ? __pfx___netif_receive_skb_one_core (net/core/dev.c:5547)
[ 31.528561][ C1] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5725)
[ 31.528836][ C1] ? process_backlog (./include/linux/rcupdate.h:298 ./include/linux/rcupdate.h:750 net/core/dev.c:5995)
[ 31.529103][ C1] process_backlog (./include/linux/rcupdate.h:779 net/core/dev.c:5997)
[ 31.529358][ C1] __napi_poll.constprop.0 (net/core/dev.c:6625)
[ 31.529646][ C1] net_rx_action (net/core/dev.c:6694 net/core/dev.c:6827)
[ 31.529899][ C1] ? __pfx_net_rx_action (net/core/dev.c:6791)
[ 31.530169][ C1] ? lockdep_unlock (kernel/locking/lockdep.c:152 kernel/locking/lockdep.c:148)
[ 31.530431][ C1] ? mark_held_locks (kernel/locking/lockdep.c:4274)
[ 31.530690][ C1] __do_softirq (kernel/softirq.c:553)
[ 31.530934][ C1] ? __dev_queue_xmit (./include/linux/rcupdate.h:308 ./include/linux/rcupdate.h:818 net/core/dev.c:4364)
[ 31.531206][ C1] do_softirq (kernel/softirq.c:454 kernel/softirq.c:441)
[ 31.531424][ C1]
[ 31.531580][ C1]
[ 31.531738][ C1] __local_bh_enable_ip (kernel/softirq.c:381)
[ 31.532007][ C1] ? __dev_queue_xmit (./include/linux/rcupdate.h:308 ./include/linux/rcupdate.h:818 net/core/dev.c:4364)
[ 31.532275][ C1] __dev_queue_xmit (net/core/dev.c:4365)
[ 31.532540][ C1] ? mark_held_locks (kernel/locking/lockdep.c:4274)
[ 31.532793][ C1] ? eth_header (net/ethernet/eth.c:100)
[ 31.533034][ C1] ? __pfx___dev_queue_xmit (net/core/dev.c:4246)
[ 31.533317][ C1] ? neigh_resolve_output (./include/linux/netdevice.h:3226 net/core/neighbour.c:1558 net/core/neighbour.c:1543)
[ 31.533612][ C1] ip6_finish_output2 (./include/net/neighbour.h:542 net/ipv6/ip6_output.c:137)
[ 31.533884][ C1] ip6_finish_output (net/ipv6/ip6_output.c:211 net/ipv6/ip6_output.c:222)
[ 31.534158][ C1] ip6_output (./include/linux/netfilter.h:303 net/ipv6/ip6_output.c:243)
[ 31.534389][ C1] ? __pfx_ip6_output (net/ipv6/ip6_output.c:230)
[ 31.534647][ C1] ? lock_acquire.part.0 (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5756)
[ 31.534922][ C1] ? 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)
[ 31.535162][ C1] ? __lock_release (kernel/locking/lockdep.c:353 kernel/locking/lockdep.c:5436)
[ 31.535424][ C1] NF_HOOK.constprop.0 (./include/linux/rcupdate.h:298 ./include/linux/rcupdate.h:750 ./include/linux/netfilter.h:238 ./include/linux/netfilter.h:312)
[ 31.535689][ C1] ? __pfx_NF_HOOK.constprop.0 (./include/linux/netfilter.h:308)
[ 31.535981][ C1] ? __pfx_xfrm_lookup_with_ifid (net/xfrm/xfrm_policy.c:3133)
[ 31.536291][ C1] ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:4300 kernel/locking/lockdep.c:4359)
[ 31.536631][ C1] ? icmp6_dst_alloc (net/ipv6/route.c:3292)
[ 31.536897][ C1] ? __local_bh_enable_ip (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:77 kernel/softirq.c:386)
[ 31.537183][ C1] mld_sendpack (net/ipv6/mcast.c:1822)
[ 31.537428][ C1] ? __pfx_mld_sendpack (net/ipv6/mcast.c:1779)
[ 31.537701][ C1] ? mld_send_cr (net/ipv6/mcast.c:2096 (discriminator 11))
[ 31.537948][ C1] mld_ifc_work (net/ipv6/mcast.c:2652)
[ 31.538194][ C1] process_one_work (kernel/workqueue.c:2633)
[ 31.538466][ C1] ? 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)
[ 31.538711][ C1] ? __pfx_process_one_work (kernel/workqueue.c:2542)
[ 31.539002][ C1] ? assign_work (kernel/workqueue.c:1101)
[ 31.539248][ C1] worker_thread (kernel/workqueue.c:2700 kernel/workqueue.c:2787)
[ 31.539502][ C1] ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:4300 kernel/locking/lockdep.c:4359)
[ 31.539852][ C1] ? __pfx_worker_thread (kernel/workqueue.c:2733)
[ 31.540123][ C1] ? __pfx_worker_thread (kernel/workqueue.c:2733)
[ 31.540390][ C1] kthread (kernel/kthread.c:388)
[ 31.540608][ C1] ? __pfx_kthread (kernel/kthread.c:341)
[ 31.540860][ C1] ret_from_fork (arch/x86/kernel/process.c:147)
[ 31.541097][ C1] ? __pfx_kthread (kernel/kthread.c:341)
[ 31.541340][ C1] ret_from_fork_asm (arch/x86/entry/entry_64.S:250)
| [ 31.541790][ C1] ---[ end trace ]---
| [ 31.542007][ C1] ------------[ cut here ]------------
| [ 31.542327][ C1] UBSAN: invalid-load in ./include/linux/skbuff.h:4267:9
| [ 31.542687][ C1] load of value 107 is not a valid value for type '_Bool'
[ 31.543459][ C1] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 31.544083][ C1] Workqueue: mld mld_ifc_work
[ 31.544330][ C1] Call Trace:
[ 31.544507][ C1]
[ 31.544660][ C1] dump_stack_lvl (lib/dump_stack.c:107)
[ 31.544902][ C1] __ubsan_handle_load_invalid_value (lib/ubsan.c:218 lib/ubsan.c:419)
[ 31.545233][ C1] skb_scrub_packet.cold (./include/linux/skbuff.h:4267 net/core/skbuff.c:6030)
[ 31.545507][ C1] __dev_forward_skb2 (./include/linux/netdevice.h:4115 net/core/dev.c:2135)
[ 31.545776][ C1] veth_xmit (drivers/net/veth.c:319 drivers/net/veth.c:374)
[ 31.546007][ C1] dev_hard_start_xmit (./include/linux/netdevice.h:4991 ./include/linux/netdevice.h:5005 net/core/dev.c:3530 net/core/dev.c:3546)
[ 31.546285][ C1] __dev_queue_xmit (./include/linux/netdevice.h:3369 net/core/dev.c:4338)
[ 31.546547][ C1] ? vprintk_emit (kernel/printk/printk.c:2313)
[ 31.546797][ C1] ? _printk (kernel/printk/printk.c:2323)
[ 31.547012][ C1] ? __pfx___dev_queue_xmit (net/core/dev.c:4246)
[ 31.547310][ C1] br_dev_queue_push_xmit (net/bridge/br_forward.c:34)
[ 31.547593][ C1] ? __pfx_br_dev_queue_push_xmit (net/bridge/br_forward.c:34)
[ 31.547911][ C1] deliver_clone (net/bridge/br_forward.c:132)
[ 31.548156][ C1] br_handle_frame_finish (net/bridge/br_input.c:215)
[ 31.548449][ C1] ? __pfx_br_handle_frame_finish (net/bridge/br_input.c:75)
[ 31.548778][ C1] ? __pfx_update_sd_lb_stats.constprop.0 (kernel/sched/fair.c:10557)
[ 31.549140][ C1] br_handle_frame (net/bridge/br_input.c:417)
[ 31.549395][ C1] ? __pfx_br_handle_frame (net/bridge/br_input.c:321)
[ 31.549683][ C1] __netif_receive_skb_core.constprop.0 (net/core/dev.c:5448)
[ 31.550042][ C1] ? mark_lock (kernel/locking/lockdep.c:4656 (discriminator 3))
[ 31.550284][ C1] ? __lock_acquire (kernel/locking/lockdep.c:5137)
[ 31.550548][ C1] ? __pfx___netif_receive_skb_core.constprop.0 (net/core/dev.c:5341)
[ 31.550924][ C1] ? lock_acquire.part.0 (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5756)
[ 31.551204][ C1] ? process_backlog (./include/linux/rcupdate.h:298 ./include/linux/rcupdate.h:750 net/core/dev.c:5995)
[ 31.551470][ C1] __netif_receive_skb_one_core (net/core/dev.c:5553)
[ 31.551775][ C1] ? __pfx___netif_receive_skb_one_core (net/core/dev.c:5547)
[ 31.552113][ C1] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5725)
[ 31.552365][ C1] ? process_backlog (./include/linux/rcupdate.h:298 ./include/linux/rcupdate.h:750 net/core/dev.c:5995)
[ 31.552633][ C1] process_backlog (./include/linux/rcupdate.h:779 net/core/dev.c:5997)
[ 31.552895][ C1] __napi_poll.constprop.0 (net/core/dev.c:6625)
[ 31.553182][ C1] net_rx_action (net/core/dev.c:6694 net/core/dev.c:6827)
[ 31.553440][ C1] ? __pfx_net_rx_action (net/core/dev.c:6791)
[ 31.553710][ C1] ? lockdep_unlock (kernel/locking/lockdep.c:152 kernel/locking/lockdep.c:148)
[ 31.553980][ C1] ? mark_held_locks (kernel/locking/lockdep.c:4274)
[ 31.554238][ C1] __do_softirq (kernel/softirq.c:553)
[ 31.554498][ C1] ? __dev_queue_xmit (./include/linux/rcupdate.h:308 ./include/linux/rcupdate.h:818 net/core/dev.c:4364)
[ 31.554769][ C1] do_softirq (kernel/softirq.c:454 kernel/softirq.c:441)
[ 31.554992][ C1]
[ 31.555151][ C1]
[ 31.555315][ C1] __local_bh_enable_ip (kernel/softirq.c:381)
[ 31.555581][ C1] ? __dev_queue_xmit (./include/linux/rcupdate.h:308 ./include/linux/rcupdate.h:818 net/core/dev.c:4364)
[ 31.555847][ C1] __dev_queue_xmit (net/core/dev.c:4365)
[ 31.556111][ C1] ? mark_held_locks (kernel/locking/lockdep.c:4274)
[ 31.556364][ C1] ? eth_header (net/ethernet/eth.c:100)
[ 31.556608][ C1] ? __pfx___dev_queue_xmit (net/core/dev.c:4246)
[ 31.556889][ C1] ? neigh_resolve_output (./include/linux/netdevice.h:3226 net/core/neighbour.c:1558 net/core/neighbour.c:1543)
[ 31.557188][ C1] ip6_finish_output2 (./include/net/neighbour.h:542 net/ipv6/ip6_output.c:137)
[ 31.557465][ C1] ip6_finish_output (net/ipv6/ip6_output.c:211 net/ipv6/ip6_output.c:222)
[ 31.557736][ C1] ip6_output (./include/linux/netfilter.h:303 net/ipv6/ip6_output.c:243)
[ 31.557967][ C1] ? __pfx_ip6_output (net/ipv6/ip6_output.c:230)
[ 31.558229][ C1] ? lock_acquire.part.0 (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5756)
[ 31.558516][ C1] ? 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)
[ 31.558761][ C1] ? __lock_release (kernel/locking/lockdep.c:353 kernel/locking/lockdep.c:5436)
[ 31.559029][ C1] NF_HOOK.constprop.0 (./include/linux/rcupdate.h:298 ./include/linux/rcupdate.h:750 ./include/linux/netfilter.h:238 ./include/linux/netfilter.h:312)
[ 31.559295][ C1] ? __pfx_NF_HOOK.constprop.0 (./include/linux/netfilter.h:308)
[ 31.559597][ C1] ? __pfx_xfrm_lookup_with_ifid (net/xfrm/xfrm_policy.c:3133)
[ 31.559907][ C1] ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:4300 kernel/locking/lockdep.c:4359)
[ 31.560248][ C1] ? icmp6_dst_alloc (net/ipv6/route.c:3292)
[ 31.560508][ C1] ? __local_bh_enable_ip (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:77 kernel/softirq.c:386)
[ 31.560790][ C1] mld_sendpack (net/ipv6/mcast.c:1822)
[ 31.561038][ C1] ? __pfx_mld_sendpack (net/ipv6/mcast.c:1779)
[ 31.561324][ C1] ? mld_send_cr (net/ipv6/mcast.c:2096 (discriminator 11))
[ 31.561579][ C1] mld_ifc_work (net/ipv6/mcast.c:2652)
[ 31.561817][ C1] process_one_work (kernel/workqueue.c:2633)
[ 31.562085][ C1] ? 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)
[ 31.562324][ C1] ? __pfx_process_one_work (kernel/workqueue.c:2542)
[ 31.562623][ C1] ? assign_work (kernel/workqueue.c:1101)
[ 31.562873][ C1] worker_thread (kernel/workqueue.c:2700 kernel/workqueue.c:2787)
[ 31.563136][ C1] ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:4300 kernel/locking/lockdep.c:4359)
[ 31.563485][ C1] ? __pfx_worker_thread (kernel/workqueue.c:2733)
[ 31.563764][ C1] ? __pfx_worker_thread (kernel/workqueue.c:2733)
[ 31.564032][ C1] kthread (kernel/kthread.c:388)
[ 31.564248][ C1] ? __pfx_kthread (kernel/kthread.c:341)
[ 31.564494][ C1] ret_from_fork (arch/x86/kernel/process.c:147)
[ 31.564726][ C1] ? __pfx_kthread (kernel/kthread.c:341)
Finger prints:
dump_stack_lvl:__ubsan_handle_load_invalid_value:deliver_clone:br_handle_frame_finish
dump_stack_lvl:__ubsan_handle_load_invalid_value:__dev_forward_skb2:veth_xmit