======================================
| [ 27.886824][ T50] br0: port 2(s1) entered forwarding state
| [ 28.320157][ C0] ------------[ cut here ]------------
| [ 28.320537][ C0] UBSAN: invalid-load in ./include/linux/skbuff.h:4267:9
| [ 28.320909][ C0] load of value 107 is not a valid value for type '_Bool'
[ 28.321733][ C0] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 28.322369][ C0] Workqueue: mld mld_ifc_work
[ 28.322617][ C0] Call Trace:
[ 28.322803][ C0]
[ 28.322952][ C0] dump_stack_lvl (lib/dump_stack.c:107)
[ 28.323189][ C0] __ubsan_handle_load_invalid_value (lib/ubsan.c:218 lib/ubsan.c:419)
[ 28.323505][ C0] ? __copy_skb_header (./include/net/dst.h:290 net/core/skbuff.c:1531)
[ 28.323780][ C0] __br_forward.cold (./include/linux/skbuff.h:4267 net/bridge/br_forward.c:65 ./include/linux/netfilter.h:423 net/bridge/br_forward.c:115)
[ 28.324034][ C0] deliver_clone (net/bridge/br_forward.c:132)
[ 28.324270][ C0] br_handle_frame_finish (net/bridge/br_input.c:216)
[ 28.324554][ C0] ? __pfx_br_handle_frame_finish (net/bridge/br_input.c:75)
[ 28.324860][ 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)
[ 28.325097][ C0] ? __lock_release (kernel/locking/lockdep.c:353 kernel/locking/lockdep.c:5436)
[ 28.325355][ C0] ? rcu_read_lock_bh_held (kernel/rcu/update.c:113 kernel/rcu/update.c:103 kernel/rcu/update.c:374)
[ 28.325641][ C0] ? tc_run (net/core/dev.c:3907 (discriminator 3))
[ 28.325859][ 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)
[ 28.326097][ C0] br_handle_frame (net/bridge/br_input.c:417)
[ 28.326352][ C0] ? __pfx_br_handle_frame (net/bridge/br_input.c:321)
[ 28.326628][ C0] __netif_receive_skb_core.constprop.0 (net/core/dev.c:5448)
[ 28.326987][ C0] ? __lock_acquire (kernel/locking/lockdep.c:5137)
[ 28.327248][ C0] ? __pfx___netif_receive_skb_core.constprop.0 (net/core/dev.c:5341)
[ 28.327611][ C0] ? lock_acquire.part.0 (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5756)
[ 28.327885][ C0] ? process_backlog (./include/linux/rcupdate.h:298 ./include/linux/rcupdate.h:750 net/core/dev.c:5995)
[ 28.328144][ C0] __netif_receive_skb_one_core (net/core/dev.c:5553)
[ 28.328449][ C0] ? __pfx___netif_receive_skb_one_core (net/core/dev.c:5547)
[ 28.328788][ C0] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5725)
[ 28.329035][ C0] ? process_backlog (./include/linux/rcupdate.h:298 ./include/linux/rcupdate.h:750 net/core/dev.c:5995)
[ 28.329303][ C0] process_backlog (./include/linux/rcupdate.h:779 net/core/dev.c:5997)
[ 28.329561][ C0] __napi_poll.constprop.0 (net/core/dev.c:6625)
[ 28.329845][ C0] net_rx_action (net/core/dev.c:6694 net/core/dev.c:6827)
[ 28.330099][ C0] ? __pfx_net_rx_action (net/core/dev.c:6791)
[ 28.330367][ C0] ? hlock_class (kernel/locking/lockdep.c:223)
[ 28.330615][ C0] ? mark_held_locks (kernel/locking/lockdep.c:4274)
[ 28.330872][ C0] __do_softirq (kernel/softirq.c:553)
[ 28.331113][ C0] ? __dev_queue_xmit (./include/linux/rcupdate.h:308 ./include/linux/rcupdate.h:818 net/core/dev.c:4364)
[ 28.331386][ C0] do_softirq (kernel/softirq.c:454 kernel/softirq.c:441)
[ 28.331612][ C0]
[ 28.331763][ C0]
[ 28.331922][ C0] __local_bh_enable_ip (kernel/softirq.c:381)
[ 28.332189][ C0] ? __dev_queue_xmit (./include/linux/rcupdate.h:308 ./include/linux/rcupdate.h:818 net/core/dev.c:4364)
[ 28.332455][ C0] __dev_queue_xmit (net/core/dev.c:4365)
[ 28.332716][ C0] ? mark_held_locks (kernel/locking/lockdep.c:4274)
[ 28.332965][ C0] ? eth_header (net/ethernet/eth.c:100)
[ 28.333212][ C0] ? __pfx___dev_queue_xmit (net/core/dev.c:4246)
[ 28.333487][ C0] ? neigh_resolve_output (./include/linux/netdevice.h:3226 net/core/neighbour.c:1558 net/core/neighbour.c:1543)
[ 28.333776][ C0] ip6_finish_output2 (./include/net/neighbour.h:542 net/ipv6/ip6_output.c:137)
[ 28.334052][ C0] ip6_finish_output.constprop.0 (net/ipv6/ip6_output.c:211 net/ipv6/ip6_output.c:222)
[ 28.334364][ C0] mld_sendpack (net/ipv6/mcast.c:1822)
[ 28.334606][ C0] ? __pfx_mld_sendpack (net/ipv6/mcast.c:1779)
[ 28.334874][ C0] ? mld_send_cr (net/ipv6/mcast.c:2096 (discriminator 11))
[ 28.335125][ C0] mld_ifc_work (net/ipv6/mcast.c:2652)
[ 28.335358][ C0] process_one_work (kernel/workqueue.c:2633)
[ 28.335632][ 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)
[ 28.335871][ C0] ? __pfx_process_one_work (kernel/workqueue.c:2542)
[ 28.336155][ C0] ? assign_work (kernel/workqueue.c:1101)
[ 28.336398][ C0] worker_thread (kernel/workqueue.c:2700 kernel/workqueue.c:2787)
[ 28.336652][ C0] ? __pfx_worker_thread (kernel/workqueue.c:2733)
[ 28.336915][ C0] kthread (kernel/kthread.c:388)
[ 28.337126][ C0] ? __pfx_kthread (kernel/kthread.c:341)
[ 28.337371][ C0] ret_from_fork (arch/x86/kernel/process.c:147)
[ 28.337609][ C0] ? __pfx_kthread (kernel/kthread.c:341)
[ 28.337847][ C0] ret_from_fork_asm (arch/x86/entry/entry_64.S:250)
| [ 28.338299][ C0] ---[ end trace ]---
| [ 28.338526][ C0] ------------[ cut here ]------------
| [ 28.338847][ C0] UBSAN: invalid-load in ./include/linux/skbuff.h:4267:9
| [ 28.339229][ C0] load of value 107 is not a valid value for type '_Bool'
[ 28.340019][ C0] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 28.340650][ C0] Workqueue: mld mld_ifc_work
[ 28.340901][ C0] Call Trace:
[ 28.341079][ C0]
[ 28.341229][ C0] dump_stack_lvl (lib/dump_stack.c:107)
[ 28.341470][ C0] __ubsan_handle_load_invalid_value (lib/ubsan.c:218 lib/ubsan.c:419)
[ 28.341801][ C0] skb_scrub_packet.cold (./include/linux/skbuff.h:4267 net/core/skbuff.c:6030)
[ 28.342074][ C0] __dev_forward_skb2 (./include/linux/netdevice.h:4115 net/core/dev.c:2135)
[ 28.342345][ C0] veth_xmit (drivers/net/veth.c:319 drivers/net/veth.c:374)
[ 28.342575][ C0] ? __pfx_passthru_features_check (net/core/dev.c:3436)
[ 28.342893][ C0] dev_hard_start_xmit (./include/linux/netdevice.h:4991 ./include/linux/netdevice.h:5005 net/core/dev.c:3530 net/core/dev.c:3546)
[ 28.343166][ C0] __dev_queue_xmit (./include/linux/netdevice.h:3369 net/core/dev.c:4338)
[ 28.343434][ C0] ? _printk (kernel/printk/printk.c:2323)
[ 28.343646][ C0] ? __pfx___dev_queue_xmit (net/core/dev.c:4246)
[ 28.343943][ C0] br_dev_queue_push_xmit (net/bridge/br_forward.c:34)
[ 28.344222][ C0] ? __pfx_br_dev_queue_push_xmit (net/bridge/br_forward.c:34)
[ 28.344521][ C0] ? __copy_skb_header (./include/net/dst.h:290 net/core/skbuff.c:1531)
[ 28.344784][ C0] ? __br_forward.cold (./include/linux/skbuff.h:4267 net/bridge/br_forward.c:65 ./include/linux/netfilter.h:423 net/bridge/br_forward.c:115)
[ 28.345036][ C0] deliver_clone (net/bridge/br_forward.c:132)
[ 28.345271][ C0] br_handle_frame_finish (net/bridge/br_input.c:216)
[ 28.345571][ C0] ? __pfx_br_handle_frame_finish (net/bridge/br_input.c:75)
[ 28.345882][ 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)
[ 28.346118][ C0] ? __lock_release (kernel/locking/lockdep.c:353 kernel/locking/lockdep.c:5436)
[ 28.346369][ C0] ? rcu_read_lock_bh_held (kernel/rcu/update.c:113 kernel/rcu/update.c:103 kernel/rcu/update.c:374)
[ 28.346644][ C0] ? tc_run (net/core/dev.c:3907 (discriminator 3))
[ 28.346858][ 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)
[ 28.347109][ C0] br_handle_frame (net/bridge/br_input.c:417)
[ 28.347375][ C0] ? __pfx_br_handle_frame (net/bridge/br_input.c:321)
[ 28.347656][ C0] __netif_receive_skb_core.constprop.0 (net/core/dev.c:5448)
[ 28.348005][ C0] ? __lock_acquire (kernel/locking/lockdep.c:5137)
[ 28.348273][ C0] ? __pfx___netif_receive_skb_core.constprop.0 (net/core/dev.c:5341)
[ 28.348636][ C0] ? lock_acquire.part.0 (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5756)
[ 28.348910][ C0] ? process_backlog (./include/linux/rcupdate.h:298 ./include/linux/rcupdate.h:750 net/core/dev.c:5995)
[ 28.349176][ C0] __netif_receive_skb_one_core (net/core/dev.c:5553)
[ 28.349483][ C0] ? __pfx___netif_receive_skb_one_core (net/core/dev.c:5547)
[ 28.349825][ C0] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5725)
[ 28.350071][ C0] ? process_backlog (./include/linux/rcupdate.h:298 ./include/linux/rcupdate.h:750 net/core/dev.c:5995)
[ 28.350337][ C0] process_backlog (./include/linux/rcupdate.h:779 net/core/dev.c:5997)
[ 28.350594][ C0] __napi_poll.constprop.0 (net/core/dev.c:6625)
[ 28.350882][ C0] net_rx_action (net/core/dev.c:6694 net/core/dev.c:6827)
[ 28.351138][ C0] ? __pfx_net_rx_action (net/core/dev.c:6791)
[ 28.351404][ C0] ? hlock_class (kernel/locking/lockdep.c:223)
[ 28.351643][ C0] ? mark_held_locks (kernel/locking/lockdep.c:4274)
[ 28.351900][ C0] __do_softirq (kernel/softirq.c:553)
[ 28.352147][ C0] ? __dev_queue_xmit (./include/linux/rcupdate.h:308 ./include/linux/rcupdate.h:818 net/core/dev.c:4364)
[ 28.352420][ C0] do_softirq (kernel/softirq.c:454 kernel/softirq.c:441)
[ 28.352640][ C0]
[ 28.352796][ C0]
[ 28.352954][ C0] __local_bh_enable_ip (kernel/softirq.c:381)
[ 28.353223][ C0] ? __dev_queue_xmit (./include/linux/rcupdate.h:308 ./include/linux/rcupdate.h:818 net/core/dev.c:4364)
[ 28.353493][ C0] __dev_queue_xmit (net/core/dev.c:4365)
[ 28.353757][ C0] ? mark_held_locks (kernel/locking/lockdep.c:4274)
[ 28.354032][ C0] ? eth_header (net/ethernet/eth.c:100)
[ 28.354268][ C0] ? __pfx___dev_queue_xmit (net/core/dev.c:4246)
[ 28.354542][ C0] ? neigh_resolve_output (./include/linux/netdevice.h:3226 net/core/neighbour.c:1558 net/core/neighbour.c:1543)
[ 28.354833][ C0] ip6_finish_output2 (./include/net/neighbour.h:542 net/ipv6/ip6_output.c:137)
[ 28.355104][ C0] ip6_finish_output.constprop.0 (net/ipv6/ip6_output.c:211 net/ipv6/ip6_output.c:222)
[ 28.355414][ C0] mld_sendpack (net/ipv6/mcast.c:1822)
[ 28.355669][ C0] ? __pfx_mld_sendpack (net/ipv6/mcast.c:1779)
[ 28.355939][ C0] ? mld_send_cr (net/ipv6/mcast.c:2096 (discriminator 11))
[ 28.356190][ C0] mld_ifc_work (net/ipv6/mcast.c:2652)
[ 28.356423][ C0] process_one_work (kernel/workqueue.c:2633)
[ 28.356687][ 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)
[ 28.356923][ C0] ? __pfx_process_one_work (kernel/workqueue.c:2542)
[ 28.357216][ C0] ? assign_work (kernel/workqueue.c:1101)
[ 28.357460][ C0] worker_thread (kernel/workqueue.c:2700 kernel/workqueue.c:2787)
[ 28.357716][ C0] ? __pfx_worker_thread (kernel/workqueue.c:2733)
[ 28.357979][ C0] kthread (kernel/kthread.c:388)
[ 28.358198][ C0] ? __pfx_kthread (kernel/kthread.c:341)
[ 28.358440][ C0] ret_from_fork (arch/x86/kernel/process.c:147)
[ 28.358668][ C0] ? __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