======================================
| [ 31.423868][ T319] veth2: entered promiscuous mode
| [ 31.425436][ C0] ------------[ cut here ]------------
| [ 31.425830][ C0] UBSAN: invalid-load in ./include/linux/skbuff.h:4267:9
| [ 31.426232][ C0] load of value 107 is not a valid value for type '_Bool'
[ 31.427080][ C0] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 31.427736][ C0] Workqueue: ipv6_addrconf addrconf_dad_work
[ 31.428077][ C0] Call Trace:
[ 31.428252][ C0]
[ 31.428433][ C0] dump_stack_lvl (lib/dump_stack.c:107)
[ 31.428730][ C0] __ubsan_handle_load_invalid_value (lib/ubsan.c:218 lib/ubsan.c:419)
[ 31.429095][ C0] br_forward_finish.cold (./include/linux/spinlock.h:396 net/bridge/br.c:81) bridge
[ 31.429523][ C0] deliver_clone (net/bridge/br_forward.c:132) bridge
[ 31.429832][ C0] br_handle_frame_finish (net/bridge/br_input.c:215) bridge
[ 31.430197][ C0] ? __pfx_br_handle_frame_finish+0x10/0x10 [bridg
DETECTED CRASH, lowering timeout
e]
[ 31.430572][ C0] ? kernel_text_address (kernel/extable.c:99)
[ 31.430844][ 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)
[ 31.431095][ C0] ? __pfx_validate_chain (kernel/locking/lockdep.c:3825)
[ 31.431375][ C0] br_handle_frame (net/bridge/br_input.c:417) bridge
[ 31.431697][ C0] ? __pfx_br_handle_frame (net/bridge/br_input.c:321) bridge
[ 31.432047][ C0] __netif_receive_skb_core.constprop.0 (net/core/dev.c:5448)
[ 31.432415][ C0] ? mark_lock (kernel/locking/lockdep.c:4656 (discriminator 3))
[ 31.432649][ C0] ? __lock_acquire (kernel/locking/lockdep.c:5137)
[ 31.432910][ C0] ? __pfx___netif_receive_skb_core.constprop.0 (net/core/dev.c:5341)
[ 31.433281][ C0] ? lock_acquire.part.0 (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5756)
[ 31.433548][ C0] ? process_backlog (./include/linux/rcupdate.h:298 ./include/linux/rcupdate.h:750 net/core/dev.c:5995)
[ 31.433810][ C0] __netif_receive_skb_one_core (net/core/dev.c:5553)
[ 31.434128][ C0] ? __pfx___netif_receive_skb_one_core (net/core/dev.c:5547)
[ 31.434476][ C0] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5725)
[ 31.434724][ C0] ? process_backlog (./include/linux/rcupdate.h:298 ./include/linux/rcupdate.h:750 net/core/dev.c:5995)
[ 31.434986][ C0] process_backlog (./include/linux/rcupdate.h:779 net/core/dev.c:5997)
[ 31.435238][ C0] __napi_poll.constprop.0 (net/core/dev.c:6625)
[ 31.435535][ C0] net_rx_action (net/core/dev.c:6694 net/core/dev.c:6827)
[ 31.435786][ C0] ? __pfx_net_rx_action (net/core/dev.c:6791)
[ 31.436053][ C0] ? hlock_class (kernel/locking/lockdep.c:223)
[ 31.436298][ C0] ? mark_held_locks (kernel/locking/lockdep.c:4274)
[ 31.436555][ C0] __do_softirq (kernel/softirq.c:553)
[ 31.436799][ C0] ? __dev_queue_xmit (./include/linux/rcupdate.h:308 ./include/linux/rcupdate.h:818 net/core/dev.c:4364)
[ 31.437067][ C0] do_softirq (kernel/softirq.c:454 kernel/softirq.c:441)
[ 31.437291][ C0]
[ 31.437444][ C0]
[ 31.437600][ C0] __local_bh_enable_ip (kernel/softirq.c:381)
[ 31.437865][ C0] ? __dev_queue_xmit (./include/linux/rcupdate.h:308 ./include/linux/rcupdate.h:818 net/core/dev.c:4364)
[ 31.438129][ C0] __dev_queue_xmit (net/core/dev.c:4365)
[ 31.438392][ C0] ? mark_held_locks (kernel/locking/lockdep.c:4274)
[ 31.438643][ C0] ? eth_header (net/ethernet/eth.c:100)
[ 31.438884][ C0] ? __pfx___dev_queue_xmit (net/core/dev.c:4246)
[ 31.439162][ C0] ? neigh_resolve_output (./include/linux/netdevice.h:3226 net/core/neighbour.c:1558 net/core/neighbour.c:1543)
[ 31.439455][ C0] ip6_finish_output2 (./include/net/neighbour.h:542 net/ipv6/ip6_output.c:137)
[ 31.439728][ C0] ip6_finish_output (net/ipv6/ip6_output.c:211 net/ipv6/ip6_output.c:222)
[ 31.439986][ 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)
[ 31.440226][ C0] ip6_output (./include/linux/netfilter.h:303 net/ipv6/ip6_output.c:243)
[ 31.440457][ C0] ? __pfx_ip6_output (net/ipv6/ip6_output.c:230)
[ 31.440727][ 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)
[ 31.440992][ C0] ? __pfx_NF_HOOK.constprop.0 (./include/linux/netfilter.h:308)
[ 31.441285][ C0] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5719)
[ 31.441579][ C0] ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:4300 kernel/locking/lockdep.c:4359)
[ 31.441927][ C0] ndisc_send_skb (net/ipv6/ndisc.c:512 (discriminator 60))
[ 31.442180][ C0] ? __pfx_ndisc_send_skb (net/ipv6/ndisc.c:473)
[ 31.442462][ 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)
[ 31.442698][ C0] ? __lock_release (kernel/locking/lockdep.c:353 kernel/locking/lockdep.c:5436)
[ 31.442957][ C0] ndisc_send_ns (net/ipv6/ndisc.c:653)
[ 31.443192][ C0] ? mark_lock (kernel/locking/lockdep.c:4656 (discriminator 3))
[ 31.443418][ C0] ? __pfx_ndisc_send_ns (net/ipv6/ndisc.c:653)
[ 31.443682][ C0] ? mark_held_locks (kernel/locking/lockdep.c:4274)
[ 31.443934][ C0] ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:4300 kernel/locking/lockdep.c:4359)
[ 31.444288][ C0] addrconf_dad_work (net/ipv6/addrconf.c:4282)
[ 31.444553][ C0] ? __pfx_addrconf_dad_work (net/ipv6/addrconf.c:4180)
[ 31.444837][ C0] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5725)
[ 31.445081][ C0] ? process_one_work (kernel/workqueue.c:2609)
[ 31.445356][ C0] process_one_work (kernel/workqueue.c:2633)
[ 31.445621][ 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)
[ 31.445860][ C0] ? __pfx_process_one_work (kernel/workqueue.c:2542)
[ 31.446148][ C0] ? assign_work (kernel/workqueue.c:1101)
[ 31.446396][ C0] worker_thread (kernel/workqueue.c:2700 kernel/workqueue.c:2787)
[ 31.446671][ C0] ? __pfx_worker_thread (kernel/workqueue.c:2733)
[ 31.446937][ C0] kthread (kernel/kthread.c:388)
[ 31.447185][ C0] ? __pfx_kthread (kernel/kthread.c:341)
[ 31.447425][ C0] ret_from_fork (arch/x86/kernel/process.c:147)
[ 31.447657][ C0] ? __pfx_kthread (kernel/kthread.c:341)
[ 31.447896][ C0] ret_from_fork_asm (arch/x86/entry/entry_64.S:250)
| [ 44.315214][ T49] br1: port 4(w3) entered forwarding state
| [ 44.613693][ C0] ------------[ cut here ]------------
| [ 44.614100][ C0] UBSAN: invalid-load in ./include/linux/skbuff.h:4267:9
| [ 44.614483][ C0] load of value 107 is not a valid value for type '_Bool'
[ 44.615355][ C0] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 44.616002][ C0] Call Trace:
[ 44.616179][ C0]
[ 44.616336][ C0] dump_stack_lvl (lib/dump_stack.c:107)
[ 44.616582][ C0] __ubsan_handle_load_invalid_value (lib/ubsan.c:218 lib/ubsan.c:419)
[ 44.616913][ C0] skb_scrub_packet.cold (./include/linux/skbuff.h:4267 net/core/skbuff.c:6030)
[ 44.617197][ C0] __dev_forward_skb2 (./include/linux/netdevice.h:4115 net/core/dev.c:2135)
[ 44.617468][ C0] veth_xmit (drivers/net/veth.c:319 drivers/net/veth.c:374) veth
[ 44.617733][ C0] ? __pfx_passthru_features_check (net/core/dev.c:3436)
[ 44.618057][ 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)
[ 44.618336][ C0] __dev_queue_xmit (./include/linux/netdevice.h:3369 net/core/dev.c:4338)
[ 44.618604][ C0] ? eth_header (net/ethernet/eth.c:100)
[ 44.618849][ C0] ? __pfx___dev_queue_xmit (net/core/dev.c:4246)
[ 44.619137][ C0] ? neigh_resolve_output (./include/linux/netdevice.h:3226 net/core/neighbour.c:1558 net/core/neighbour.c:1543)
[ 44.619423][ C0] ? __neigh_update (./include/linux/rcupdate.h:298 ./include/linux/rcupdate.h:750 net/core/neighbour.c:1446)
[ 44.619687][ C0] __neigh_update (net/core/neighbour.c:1461)
[ 44.619960][ C0] ndisc_recv_na (./include/net/ndisc.h:251 net/ipv6/ndisc.c:784 net/ipv6/ndisc.c:1109)
[ 44.620246][ C0] ? __pfx_ndisc_recv_na (net/ipv6/ndisc.c:992)
[ 44.620513][ C0] ? __skb_checksum (net/core/skbuff.c:3438 (discriminator 4))
[ 44.620804][ C0] icmpv6_rcv (net/ipv6/icmp.c:979)
[ 44.621084][ C0] ip6_protocol_deliver_rcu (net/ipv6/ip6_input.c:438 (discriminator 5))
[ 44.621384][ C0] ? ip6_route_input (./include/linux/skbuff.h:1171 net/ipv6/route.c:2593)
[ 44.621661][ C0] ip6_input_finish (./include/linux/rcupdate.h:779 net/ipv6/ip6_input.c:484)
[ 44.621920][ C0] ip6_input (./include/linux/netfilter.h:314 ./include/linux/netfilter.h:308 net/ipv6/ip6_input.c:492)
[ 44.622148][ C0] ? __pfx_ip6_input (net/ipv6/ip6_input.c:491)
[ 44.622409][ C0] ? ip6_rcv_core (./include/linux/skbuff.h:3172 net/ipv6/ip6_input.c:291)
[ 44.622669][ C0] ipv6_rcv (./include/net/dst.h:460 net/ipv6/ip6_input.c:79 ./include/linux/netfilter.h:314 ./include/linux/netfilter.h:308 net/ipv6/ip6_input.c:310)
[ 44.622890][ C0] ? __pfx_ipv6_rcv (net/ipv6/ip6_input.c:304)
[ 44.623157][ C0] ? lock_acquire.part.0 (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5756)
[ 44.623431][ C0] ? process_backlog (./include/linux/rcupdate.h:298 ./include/linux/rcupdate.h:750 net/core/dev.c:5995)
[ 44.623695][ C0] ? __pfx_ipv6_rcv (net/ipv6/ip6_input.c:304)
[ 44.623961][ C0] __netif_receive_skb_one_core (net/core/dev.c:5547)
[ 44.624290][ C0] ? __pfx___netif_receive_skb_one_core (net/core/dev.c:5547)
[ 44.624621][ C0] ? __pfx_do_raw_spin_trylock (kernel/locking/spinlock_debug.c:122)
[ 44.624921][ C0] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5725)
[ 44.625175][ C0] ? process_backlog (./include/linux/rcupdate.h:298 ./include/linux/rcupdate.h:750 net/core/dev.c:5995)
[ 44.625444][ C0] process_backlog (./include/linux/rcupdate.h:779 net/core/dev.c:5997)
[ 44.625701][ C0] __napi_poll.constprop.0 (net/core/dev.c:6625)
[ 44.625997][ C0] net_rx_action (net/core/dev.c:6694 net/core/dev.c:6827)
[ 44.626254][ C0] ? __pfx_net_rx_action (net/core/dev.c:6791)
[ 44.626523][ C0] ? __pfx___schedule (kernel/sched/core.c:6608)
[ 44.626779][ C0] ? __pfx___lock_release (kernel/locking/lockdep.c:5406)
[ 44.627072][ C0] __do_softirq (kernel/softirq.c:553)
[ 44.627317][ C0] ? __pfx_run_ksoftirqd (kernel/softirq.c:914)
[ 44.627590][ C0] run_ksoftirqd (kernel/softirq.c:410 kernel/softirq.c:922 kernel/softirq.c:913)
[ 44.627822][ C0] smpboot_thread_fn (kernel/smpboot.c:164 (discriminator 3))
[ 44.628100][ C0] ? __pfx_smpboot_thread_fn (kernel/smpboot.c:107)
[ 44.628392][ C0] ? __pfx_smpboot_thread_fn (kernel/smpboot.c:107)
[ 44.628675][ C0] kthread (kernel/kthread.c:388)
[ 44.628889][ C0] ? __pfx_kthread (kernel/kthread.c:341)
[ 44.629151][ C0] ret_from_fork (arch/x86/kernel/process.c:147)
[ 44.629386][ C0] ? __pfx_kthread (kernel/kthread.c:341)
[ 44.629625][ C0] ret_from_fork_asm (arch/x86/entry/entry_64.S:250)
| [ 44.630122][ C0] ---[ end trace ]---
| [ 44.630994][ C0] ------------[ cut here ]------------
| [ 44.631363][ C0] UBSAN: invalid-load in ./include/linux/skbuff.h:4267:9
| [ 44.631723][ C0] load of value 107 is not a valid value for type '_Bool'
[ 44.632561][ C0] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 44.633178][ C0] Call Trace:
[ 44.633352][ C0]
[ 44.633536][ C0] dump_stack_lvl (lib/dump_stack.c:107)
[ 44.633776][ C0] __ubsan_handle_load_invalid_value (lib/ubsan.c:218 lib/ubsan.c:419)
[ 44.634123][ C0] ip6_forward.cold (./include/linux/skbuff.h:4267 net/ipv6/ip6_output.c:471 ./include/linux/netfilter.h:314 ./include/linux/netfilter.h:308 net/ipv6/ip6_output.c:660)
[ 44.634386][ C0] ? __pfx_ip6_forward (net/ipv6/ip6_output.c:494)
[ 44.634645][ C0] ? __pfx___lock_release (kernel/locking/lockdep.c:5406)
[ 44.634917][ C0] ? udp_v6_early_demux (net/ipv6/udp.c:1067 net/ipv6/udp.c:1097)
[ 44.635212][ C0] ? ipv6_rcv (./include/net/dst.h:460 ./include/net/dst.h:458 net/ipv6/ip6_input.c:79 ./include/linux/netfilter.h:314 ./include/linux/netfilter.h:308 net/ipv6/ip6_input.c:310)
[ 44.635440][ C0] ipv6_rcv (./include/net/dst.h:460 ./include/net/dst.h:458 net/ipv6/ip6_input.c:79 ./include/linux/netfilter.h:314 ./include/linux/netfilter.h:308 net/ipv6/ip6_input.c:310)
[ 44.635657][ C0] ? __pfx_ipv6_rcv (net/ipv6/ip6_input.c:304)
[ 44.635910][ C0] ? lock_acquire.part.0 (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5756)
[ 44.636210][ C0] ? process_backlog (./include/linux/rcupdate.h:298 ./include/linux/rcupdate.h:750 net/core/dev.c:5995)
[ 44.636473][ C0] ? __pfx_ipv6_rcv (net/ipv6/ip6_input.c:304)
[ 44.636719][ C0] __netif_receive_skb_one_core (net/core/dev.c:5547)
[ 44.637024][ C0] ? __pfx___netif_receive_skb_one_core (net/core/dev.c:5547)
[ 44.637355][ C0] ? __pfx_do_raw_spin_trylock (kernel/locking/spinlock_debug.c:122)
[ 44.637650][ C0] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5725)
[ 44.637894][ C0] ? process_backlog (./include/linux/rcupdate.h:298 ./include/linux/rcupdate.h:750 net/core/dev.c:5995)
[ 44.638156][ C0] process_backlog (./include/linux/rcupdate.h:779 net/core/dev.c:5997)
[ 44.638409][ C0] __napi_poll.constprop.0 (net/core/dev.c:6625)
[ 44.638693][ C0] net_rx_action (net/core/dev.c:6694 net/core/dev.c:6827)
[ 44.638945][ C0] ? __pfx_net_rx_action (net/core/dev.c:6791)
[ 44.639212][ C0] ? __pfx___schedule (kernel/sched/core.c:6608)
[ 44.639467][ C0] ? __pfx___lock_release (kernel/locking/lockdep.c:5406)
[ 44.639745][ C0] __do_softirq (kernel/softirq.c:553)
[ 44.640010][ C0] ? __pfx_run_ksoftirqd (kernel/softirq.c:914)
[ 44.640284][ C0] run_ksoftirqd (kernel/softirq.c:410 kernel/softirq.c:922 kernel/softirq.c:913)
[ 44.640518][ C0] smpboot_thread_fn (kernel/smpboot.c:164 (discriminator 3))
[ 44.640775][ C0] ? __pfx_smpboot_thread_fn (kernel/smpboot.c:107)
[ 44.641060][ C0] ? __pfx_smpboot_thread_fn (kernel/smpboot.c:107)
[ 44.641341][ C0] kthread (kernel/kthread.c:388)
[ 44.641552][ C0] ? __pfx_kthread (kernel/kthread.c:341)
[ 44.641796][ C0] ret_from_fork (arch/x86/kernel/process.c:147)
[ 44.642029][ 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
dump_stack_lvl:__ubsan_handle_load_invalid_value:ipv6_rcv:__netif_receive_skb_one_core