======================================
| [ 82.641382][ T47] br0: port 2(veth3) entered forwarding state
| [ 82.646091][ C2] ------------[ cut here ]------------
| [ 82.646521][ C2] UBSAN: invalid-load in ./include/linux/skbuff.h:4267:9
| [ 82.646911][ C2] load of value 107 is not a valid value for type '_Bool'
[ 82.647825][ C2] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 82.648497][ C2] Workqueue: mld mld_ifc_work
[ 82.648784][ C2] Call Trace:
[ 82.648958][ C2]
[ 82.649126][ C2] dump_stack_lvl (lib/dump_stack.c:107)
[ 82.649364][ C2] __ubsan_handle_load_invalid_value (lib/ubsan.c:218 lib/ubsan.c:419)
[ 82.649703][ C2] br_forward_finish.cold (./include/linux/spinlock.h:396 net/bridge/br.c:81) bridge
[ 82.650105][ C2] deliver_clone (net/bridge/br_forward.c:132) bridge
[ 82.650414][ C2] br_handle_frame_finish (net/bridge/br_input.c:215) bridge
[ 82.650779][ C2] ? __pfx_br_handle_frame_finish (net/bridge/br_input.c:75) bridge
[ 82.651220][ C2] ? __pfx_update_sd_lb_stats.constprop.0+0x10/
DETECTED CRASH, lowering timeout
0x10
[ 82.651577][ C2] br_handle_frame (net/bridge/br_input.c:417) bridge
[ 82.651902][ C2] ? __pfx_br_handle_frame (net/bridge/br_input.c:321) bridge
[ 82.652266][ C2] __netif_receive_skb_core.constprop.0 (net/core/dev.c:5448)
[ 82.652616][ C2] ? mark_lock (kernel/locking/lockdep.c:4656 (discriminator 3))
[ 82.652848][ C2] ? __lock_acquire (kernel/locking/lockdep.c:5137)
[ 82.653122][ C2] ? __pfx___netif_receive_skb_core.constprop.0 (net/core/dev.c:5341)
[ 82.653495][ C2] ? lock_acquire.part.0 (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5756)
[ 82.653764][ C2] ? process_backlog (./include/linux/rcupdate.h:298 ./include/linux/rcupdate.h:750 net/core/dev.c:5995)
[ 82.654037][ C2] __netif_receive_skb_one_core (net/core/dev.c:5553)
[ 82.654340][ C2] ? __pfx___netif_receive_skb_one_core (net/core/dev.c:5547)
[ 82.654672][ C2] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5725)
[ 82.654915][ C2] ? process_backlog (./include/linux/rcupdate.h:298 ./include/linux/rcupdate.h:750 net/core/dev.c:5995)
[ 82.655281][ C2] process_backlog (./include/linux/rcupdate.h:779 net/core/dev.c:5997)
[ 82.655547][ C2] __napi_poll.constprop.0 (net/core/dev.c:6625)
[ 82.655829][ C2] net_rx_action (net/core/dev.c:6694 net/core/dev.c:6827)
[ 82.656099][ C2] ? __pfx_net_rx_action (net/core/dev.c:6791)
[ 82.656375][ C2] ? hlock_class (kernel/locking/lockdep.c:223)
[ 82.656628][ C2] ? mark_held_locks (kernel/locking/lockdep.c:4274)
[ 82.656904][ C2] __do_softirq (kernel/softirq.c:553)
[ 82.657173][ C2] ? __dev_queue_xmit (./include/linux/rcupdate.h:308 ./include/linux/rcupdate.h:818 net/core/dev.c:4364)
[ 82.657460][ C2] do_softirq (kernel/softirq.c:454 kernel/softirq.c:441)
[ 82.657679][ C2]
[ 82.657850][ C2]
[ 82.658016][ C2] __local_bh_enable_ip (kernel/softirq.c:381)
[ 82.658304][ C2] ? __dev_queue_xmit (./include/linux/rcupdate.h:308 ./include/linux/rcupdate.h:818 net/core/dev.c:4364)
[ 82.658568][ C2] __dev_queue_xmit (net/core/dev.c:4365)
[ 82.658831][ C2] ? mark_held_locks (kernel/locking/lockdep.c:4274)
[ 82.659108][ C2] ? eth_header (net/ethernet/eth.c:100)
[ 82.659346][ C2] ? __pfx___dev_queue_xmit (net/core/dev.c:4246)
[ 82.659654][ C2] ? neigh_resolve_output (./include/linux/netdevice.h:3226 net/core/neighbour.c:1558 net/core/neighbour.c:1543)
[ 82.659942][ C2] ip6_finish_output2 (./include/net/neighbour.h:542 net/ipv6/ip6_output.c:137)
[ 82.660237][ C2] ip6_finish_output (net/ipv6/ip6_output.c:211 net/ipv6/ip6_output.c:222)
[ 82.660519][ C2] ip6_output (./include/linux/netfilter.h:303 net/ipv6/ip6_output.c:243)
[ 82.660766][ C2] ? __pfx_ip6_output (net/ipv6/ip6_output.c:230)
[ 82.661050][ C2] ? lock_acquire.part.0 (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5756)
[ 82.661341][ 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)
[ 82.661578][ C2] ? __lock_release (kernel/locking/lockdep.c:353 kernel/locking/lockdep.c:5436)
[ 82.661857][ 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)
[ 82.662145][ C2] ? __pfx_NF_HOOK.constprop.0 (./include/linux/netfilter.h:308)
[ 82.662453][ C2] ? __pfx_xfrm_lookup_with_ifid (net/xfrm/xfrm_policy.c:3133)
[ 82.662789][ C2] ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:4300 kernel/locking/lockdep.c:4359)
[ 82.663155][ C2] ? icmp6_dst_alloc (net/ipv6/route.c:3292)
[ 82.663413][ C2] ? __local_bh_enable_ip (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:77 kernel/softirq.c:386)
[ 82.663710][ C2] mld_sendpack (net/ipv6/mcast.c:1822)
[ 82.663954][ C2] ? __pfx_mld_sendpack (net/ipv6/mcast.c:1779)
[ 82.664239][ C2] ? mld_send_cr (net/ipv6/mcast.c:2096 (discriminator 11))
[ 82.664485][ C2] mld_ifc_work (net/ipv6/mcast.c:2652)
[ 82.664721][ C2] process_one_work (kernel/workqueue.c:2633)
[ 82.665023][ 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)
[ 82.665289][ C2] ? __pfx_process_one_work (kernel/workqueue.c:2542)
[ 82.665599][ C2] ? assign_work (kernel/workqueue.c:1101)
[ 82.665847][ C2] worker_thread (kernel/workqueue.c:2700 kernel/workqueue.c:2787)
[ 82.666124][ C2] ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:4300 kernel/locking/lockdep.c:4359)
[ 82.666494][ C2] ? __pfx_worker_thread (kernel/workqueue.c:2733)
[ 82.666778][ C2] ? __pfx_worker_thread (kernel/workqueue.c:2733)
[ 82.667078][ C2] kthread (kernel/kthread.c:388)
[ 82.667293][ C2] ? __pfx_kthread (kernel/kthread.c:341)
[ 82.667535][ C2] ret_from_fork (arch/x86/kernel/process.c:147)
[ 82.667785][ C2] ? __pfx_kthread (kernel/kthread.c:341)
Finger prints:
dump_stack_lvl:__ubsan_handle_load_invalid_value:deliver_clone:br_handle_frame_finish