====================================== | [ 73.874662][ T47] br0: port 2(veth1) entered forwarding state | [ 73.877780][ T47] ------------[ cut here ]------------ | [ 73.878161][ T47] UBSAN: invalid-load in ./include/linux/skbuff.h:4267:9 | [ 73.878545][ T47] load of value 107 is not a valid value for type '_Bool' [ 73.879320][ T47] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 73.879996][ T47] Workqueue: mld mld_ifc_work [ 73.880292][ T47] Call Trace: [ 73.880483][ T47] [ 73.880658][ T47] dump_stack_lvl (lib/dump_stack.c:107) [ 73.880916][ T47] __ubsan_handle_load_invalid_value (lib/ubsan.c:218 lib/ubsan.c:419) [ 73.881261][ T47] ? __copy_skb_header (./arch/x86/include/asm/atomic.h:79 ./include/linux/atomic/atomic-arch-fallback.h:2393 ./include/linux/atomic/atomic-instrumented.h:1468 ./include/linux/rcuref.h:67 ./include/net/dst.h:238 ./include/net/dst.h:252 ./include/net/dst.h:285 ./include/net/dst.h:290 net/core/skbuff.c:1531) [ 73.881554][ T47] __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) [ 73.881814][ T47] deliver_clone (net/bridge/br_forward.c:132) [ 73.882089][ T47] maybe_deliver (net/bridge/br_forward.c:191) [ 73.882346][ T47] br_flood (net/bridge/br_forward.c:236) [ 73.882589][ T47] br_dev_xmit (./include/linux/rcupdate.h:779 net/bridge/br_device.c:107) [ 73.882846][ T47] ? __pfx_br_dev_xmit (net/bridge/br_device.c:29) [ 73.883136][ T47] ? __dev_queue_xmit (./include/linux/bottom_half.h:20 ./include/linux/rcupdate.h:802 net/core/dev.c:4262) [ 73.883424][ T47] ? lock_acquire.part.0 (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5756) [ 73.883711][ T47] ? __pfx_skb_network_protocol (net/core/dev.c:3341) [ 73.884022][ T47] ? __pfx_qdisc_pkt_len_init (net/core/dev.c:3679) [ 73.884321][ T47] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5719) [ 73.884663][ T47] dev_hard_start_xmit (./include/linux/netdevice.h:4991 ./include/linux/netdevice.h:5005 net/core/dev.c:3530 net/core/dev.c:3546) [ 73.884968][ T47] __dev_queue_xmit (./include/linux/netdevice.h:3369 net/core/dev.c:4338) [ 73.885263][ T47] ? mark_held_locks (kernel/locking/lockdep.c:4274) [ 73.885538][ T47] ? eth_header (net/ethernet/eth.c:100) [ 73.885784][ T47] ? __pfx___dev_queue_xmit (net/core/dev.c:4246) [ 73.886075][ T47] ? neigh_resolve_output (./include/linux/netdevice.h:3226 net/core/neighbour.c:1558 net/core/neighbour.c:1543) [ 73.886373][ T47] ip6_finish_output2 (./include/net/neighbour.h:542 net/ipv6/ip6_output.c:137) [ 73.886648][ T47] ip6_finish_output.constprop.0 (net/ipv6/ip6_output.c:211 net/ipv6/ip6_output.c:222) [ 73.886969][ T47] mld_sendpack (net/ipv6/mcast.c:1822) [ 73.887217][ T47] ? __pfx_mld_sendpack (net/ipv6/mcast.c:1779) [ 73.887505][ T47] ? mld_send_cr (net/ipv6/mcast.c:2096 (discriminator 11)) [ 73.887759][ T47] mld_ifc_work (net/ipv6/mcast.c:2652) [ 73.887994][ T47] process_one_work (kernel/workqueue.c:2633) [ 73.888270][ T47] ? 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) [ 73.888518][ T47] ? __pfx_process_one_work (kernel/workqueue.c:2542) [ 73.888812][ T47] ? assign_work (kernel/workqueue.c:1101) [ 73.889065][ T47] worker_thread (kernel/workqueue.c:2700 kernel/workqueue.c:2787) [ 73.889331][ T47] ? __pfx_worker_thread (kernel/workqueue.c:2733) [ 73.889605][ T47] kthread (kernel/kthread.c:388) [ 73.889819][ T47] ? __pfx_kthread (kernel/kthread.c:341) [ 73.890067][ T47] ret_from_fork (arch/x86/kernel/process.c:147) [ 73.890301][ T47] ? __pfx_kthread (kernel/kthread.c:341) [ 73.890547][ T47] ret_from_fork_asm (arch/x86/entry/entry_64.S:250) | [ 73.890998][ T47] ---[ end trace ]--- | [ 73.891220][ T47] ------------[ cut here ]------------ | [ 73.891584][ T47] UBSAN: invalid-load in ./include/linux/skbuff.h:4267:9 | [ 73.891948][ T47] load of value 107 is not a valid value for type '_Bool' [ 73.892717][ T47] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 73.893345][ T47] Workqueue: mld mld_ifc_work [ 73.893594][ T47] Call Trace: [ 73.893769][ T47] [ 73.893938][ T47] dump_stack_lvl (lib/dump_stack.c:107) [ 73.894185][ T47] __ubsan_handle_load_invalid_value (lib/ubsan.c:218 lib/ubsan.c:419) [ 73.894521][ T47] skb_scrub_packet.cold (./include/linux/skbuff.h:4267 net/core/skbuff.c:6030) [ 73.894795][ T47] __dev_forward_skb2 (./include/linux/netdevice.h:4115 net/core/dev.c:2135) [ 73.895064][ T47] veth_xmit (drivers/net/veth.c:319 drivers/net/veth.c:374) [ 73.895289][ T47] ? __pfx_passthru_features_check (net/core/dev.c:3436) [ 73.895605][ T47] dev_hard_start_xmit (./include/linux/netdevice.h:4991 ./include/linux/netdevice.h:5005 net/core/dev.c:3530 net/core/dev.c:3546) [ 73.895891][ T47] __dev_queue_xmit (./include/linux/netdevice.h:3369 net/core/dev.c:4338) [ 73.896159][ T47] ? _printk (kernel/printk/printk.c:2323) [ 73.896384][ T47] ? __pfx___dev_queue_xmit (net/core/dev.c:4246) [ 73.896681][ T47] br_dev_queue_push_xmit (net/bridge/br_forward.c:34) [ 73.896962][ T47] ? __pfx_br_dev_queue_push_xmit (net/bridge/br_forward.c:34) [ 73.897274][ T47] ? __copy_skb_header (./arch/x86/include/asm/atomic.h:79 ./include/linux/atomic/atomic-arch-fallback.h:2393 ./include/linux/atomic/atomic-instrumented.h:1468 ./include/linux/rcuref.h:67 ./include/net/dst.h:238 ./include/net/dst.h:252 ./include/net/dst.h:285 ./include/net/dst.h:290 net/core/skbuff.c:1531) [ 73.897547][ T47] ? __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) [ 73.897811][ T47] deliver_clone (net/bridge/br_forward.c:132) [ 73.898046][ T47] maybe_deliver (net/bridge/br_forward.c:191) [ 73.898294][ T47] br_flood (net/bridge/br_forward.c:236) [ 73.898520][ T47] br_dev_xmit (./include/linux/rcupdate.h:779 net/bridge/br_device.c:107) [ 73.898762][ T47] ? __pfx_br_dev_xmit (net/bridge/br_device.c:29) [ 73.899024][ T47] ? __dev_queue_xmit (./include/linux/bottom_half.h:20 ./include/linux/rcupdate.h:802 net/core/dev.c:4262) [ 73.899290][ T47] ? lock_acquire.part.0 (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5756) [ 73.899561][ T47] ? __pfx_skb_network_protocol (net/core/dev.c:3341) [ 73.899859][ T47] ? __pfx_qdisc_pkt_len_init (net/core/dev.c:3679) [ 73.900147][ T47] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5719) [ 73.900446][ T47] dev_hard_start_xmit (./include/linux/netdevice.h:4991 ./include/linux/netdevice.h:5005 net/core/dev.c:3530 net/core/dev.c:3546) [ 73.900724][ T47] __dev_queue_xmit (./include/linux/netdevice.h:3369 net/core/dev.c:4338) [ 73.900987][ T47] ? mark_held_locks (kernel/locking/lockdep.c:4274) [ 73.901238][ T47] ? eth_header (net/ethernet/eth.c:100) [ 73.901480][ T47] ? __pfx___dev_queue_xmit (net/core/dev.c:4246) [ 73.901758][ T47] ? neigh_resolve_output (./include/linux/netdevice.h:3226 net/core/neighbour.c:1558 net/core/neighbour.c:1543) [ 73.902053][ T47] ip6_finish_output2 (./include/net/neighbour.h:542 net/ipv6/ip6_output.c:137) [ 73.902327][ T47] ip6_finish_output.constprop.0 (net/ipv6/ip6_output.c:211 net/ipv6/ip6_output.c:222) [ 73.902701][ T47] mld_sendpack (net/ipv6/mcast.c:1822) [ 73.902963][ T47] ? __pfx_mld_sendpack (net/ipv6/mcast.c:1779) [ 73.903259][ T47] ? mld_send_cr (net/ipv6/mcast.c:2096 (discriminator 11)) [ 73.903527][ T47] mld_ifc_work (net/ipv6/mcast.c:2652) [ 73.903766][ T47] process_one_work (kernel/workqueue.c:2633) [ 73.904044][ T47] ? 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) [ 73.904281][ T47] ? __pfx_process_one_work (kernel/workqueue.c:2542) [ 73.904573][ T47] ? assign_work (kernel/workqueue.c:1101) [ 73.904823][ T47] worker_thread (kernel/workqueue.c:2700 kernel/workqueue.c:2787) [ 73.905090][ T47] ? __pfx_worker_thread (kernel/workqueue.c:2733) [ 73.905355][ T47] kthread (kernel/kthread.c:388) [ 73.905573][ T47] ? __pfx_kthread (kernel/kthread.c:341) [ 73.905819][ T47] ret_from_fork (arch/x86/kernel/process.c:147) [ 73.906051][ T47] ? __pfx_kthread (kernel/kthread.c:341) Finger prints: dump_stack_lvl:__ubsan_handle_load_invalid_value:deliver_clone:maybe_deliver dump_stack_lvl:__ubsan_handle_load_invalid_value:__dev_forward_skb2:veth_xmit