======================================
| [ 28.305060][ T50] br0: port 2(veth3) entered forwarding state
| [ 28.310666][ C0] ------------[ cut here ]------------
| [ 28.311054][ C0] UBSAN: invalid-load in ./include/linux/skbuff.h:4267:9
| [ 28.311493][ C0] load of value 107 is not a valid value for type '_Bool'
[ 28.312333][ C0] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 28.312956][ C0] Workqueue: mld mld_ifc_work
[ 28.313204][ C0] Call Trace:
[ 28.313381][ C0]
[ 28.313532][ C0] dump_stack_lvl (lib/dump_stack.c:107)
[ 28.313768][ C0] __ubsan_handle_load_invalid_value (lib/ubsan.c:218 lib/ubsan.c:419)
[ 28.314090][ C0] br_forward_finish.cold (./include/linux/spinlock.h:396 net/bridge/br.c:81) bridge
[ 28.314472][ C0] deliver_clone (net/bridge/br_forward.c:132) bridge
[ 28.314781][ C0] br_handle_frame_finish (net/bridge/br_input.c:215) bridge
[ 28.315
DETECTED CRASH, lowering timeout
149][ C0] ? hlock_class (kernel/locking/lockdep.c:223)
[ 28.315393][ C0] ? __pfx_br_handle_frame_finish (net/bridge/br_input.c:75) bridge
[ 28.315781][ 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)
[ 28.316015][ C0] ? mark_lock (kernel/locking/lockdep.c:4656 (discriminator 3))
[ 28.316273][ C0] br_handle_frame (net/bridge/br_input.c:417) bridge
[ 28.316600][ C0] ? __pfx_br_handle_frame (net/bridge/br_input.c:321) bridge
[ 28.316956][ C0] __netif_receive_skb_core.constprop.0 (net/core/dev.c:5448)
[ 28.317301][ C0] ? mark_lock (kernel/locking/lockdep.c:4656 (discriminator 3))
[ 28.317542][ C0] ? __lock_acquire (kernel/locking/lockdep.c:5137)
[ 28.317803][ C0] ? __pfx___netif_receive_skb_core.constprop.0 (net/core/dev.c:5341)
[ 28.318178][ C0] ? lock_acquire.part.0 (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5756)
[ 28.318451][ C0] ? process_backlog (./include/linux/rcupdate.h:298 ./include/linux/rcupdate.h:750 net/core/dev.c:5995)
[ 28.318716][ C0] __netif_receive_skb_one_core (net/core/dev.c:5553)
[ 28.319026][ C0] ? __pfx___netif_receive_skb_one_core (net/core/dev.c:5547)
[ 28.319365][ C0] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5725)
[ 28.319606][ C0] ? process_backlog (./include/linux/rcupdate.h:298 ./include/linux/rcupdate.h:750 net/core/dev.c:5995)
[ 28.319866][ C0] process_backlog (./include/linux/rcupdate.h:779 net/core/dev.c:5997)
[ 28.320116][ C0] __napi_poll.constprop.0 (net/core/dev.c:6625)
[ 28.320405][ C0] net_rx_action (net/core/dev.c:6694 net/core/dev.c:6827)
[ 28.320653][ C0] ? __pfx_net_rx_action (net/core/dev.c:6791)
[ 28.320923][ C0] ? hlock_class (kernel/locking/lockdep.c:223)
[ 28.321163][ C0] ? mark_held_locks (kernel/locking/lockdep.c:4274)
[ 28.321416][ C0] __do_softirq (kernel/softirq.c:553)
[ 28.321657][ C0] ? __dev_queue_xmit (./include/linux/rcupdate.h:308 ./include/linux/rcupdate.h:818 net/core/dev.c:4364)
[ 28.321929][ C0] do_softirq (kernel/softirq.c:454 kernel/softirq.c:441)
[ 28.322154][ C0]
[ 28.322307][ C0]
[ 28.322466][ C0] __local_bh_enable_ip (kernel/softirq.c:381)
[ 28.322728][ C0] ? __dev_queue_xmit (./include/linux/rcupdate.h:308 ./include/linux/rcupdate.h:818 net/core/dev.c:4364)
[ 28.322990][ C0] __dev_queue_xmit (net/core/dev.c:4365)
[ 28.323254][ C0] ? mark_held_locks (kernel/locking/lockdep.c:4274)
[ 28.323502][ C0] ? eth_header (net/ethernet/eth.c:100)
[ 28.323739][ C0] ? __pfx___dev_queue_xmit (net/core/dev.c:4246)
[ 28.324022][ C0] ? neigh_resolve_output (./include/linux/netdevice.h:3226 net/core/neighbour.c:1558 net/core/neighbour.c:1543)
[ 28.324316][ C0] ip6_finish_output2 (./include/net/neighbour.h:542 net/ipv6/ip6_output.c:137)
[ 28.324585][ C0] ip6_finish_output (net/ipv6/ip6_output.c:211 net/ipv6/ip6_output.c:222)
[ 28.324846][ C0] ip6_output (./include/linux/netfilter.h:303 net/ipv6/ip6_output.c:243)
[ 28.325073][ C0] ? __pfx_ip6_output (net/ipv6/ip6_output.c:230)
[ 28.325325][ C0] ? lock_acquire.part.0 (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5756)
[ 28.325604][ 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)
[ 28.325840][ C0] ? __lock_release (kernel/locking/lockdep.c:353 kernel/locking/lockdep.c:5436)
[ 28.326102][ 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)
[ 28.326363][ C0] ? __pfx_NF_HOOK.constprop.0 (./include/linux/netfilter.h:308)
[ 28.326658][ C0] ? __pfx_xfrm_lookup_with_ifid (net/xfrm/xfrm_policy.c:3133)
[ 28.326960][ C0] ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:4300 kernel/locking/lockdep.c:4359)
[ 28.327302][ C0] ? icmp6_dst_alloc (net/ipv6/route.c:3292)
[ 28.327558][ C0] ? __local_bh_enable_ip (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:77 kernel/softirq.c:386)
[ 28.327841][ C0] mld_sendpack (net/ipv6/mcast.c:1822)
[ 28.328084][ C0] ? __pfx_mld_sendpack (net/ipv6/mcast.c:1779)
[ 28.328354][ C0] ? mld_send_cr (net/ipv6/mcast.c:2096 (discriminator 11))
[ 28.328600][ C0] mld_ifc_work (net/ipv6/mcast.c:2652)
[ 28.328840][ C0] process_one_work (kernel/workqueue.c:2633)
[ 28.329106][ 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)
[ 28.329339][ C0] ? __pfx_process_one_work (kernel/workqueue.c:2542)
[ 28.329634][ C0] ? assign_work (kernel/workqueue.c:1101)
[ 28.329877][ C0] worker_thread (kernel/workqueue.c:2700 kernel/workqueue.c:2787)
[ 28.330139][ C0] ? __pfx_worker_thread (kernel/workqueue.c:2733)
[ 28.330411][ C0] kthread (kernel/kthread.c:388)
[ 28.330625][ C0] ? __pfx_kthread (kernel/kthread.c:341)
[ 28.330867][ C0] ret_from_fork (arch/x86/kernel/process.c:147)
[ 28.331098][ C0] ? __pfx_kthread (kernel/kthread.c:341)
Finger prints:
dump_stack_lvl:__ubsan_handle_load_invalid_value:deliver_clone:br_handle_frame_finish