====================================== | [ 28.425219][ T48] br0: port 2(eth1) entered forwarding state | [ 28.469793][ T47] ------------[ cut here ]------------ | [ 28.470179][ T47] UBSAN: invalid-load in ./include/linux/skbuff.h:4267:9 | [ 28.470584][ T47] load of value 107 is not a valid value for type '_Bool' [ 28.471429][ T47] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 28.472096][ T47] Workqueue: mld mld_ifc_work [ 28.472350][ T47] Call Trace: [ 28.472542][ T47] [ 28.472710][ T47] dump_stack_lvl (lib/dump_stack.c:107) [ 28.472974][ T47] __ubsan_handle_load_invalid_value (lib/ubsan.c:218 lib/ubsan.c:419) [ 28.473326][ 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) [ 28.473622][ 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) [ 28.473944][ T47] deliver_clone (net/bridge/br_forward.c:132) [ 28.474274][ T47] maybe_deliver (net/bridge/br_forward.c:191) [ 28.474594][ T47] br_flood (net/bridge/br_forward.c:236) [ 28.474931][ T47] br_dev_xmit (./include/linux/rcupdate.h:779 net/bridge/br_device.c:107) [ 28.475277][ T47] ? __pfx_br_dev_xmit (net/bridge/br_device.c:29) [ 28.475664][ T47] ? __dev_queue_xmit (./include/linux/bottom_half.h:20 ./include/linux/rcupdate.h:802 net/core/dev.c:4262) [ 28.476064][ T47] ? lock_acquire.part.0 (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5756) [ 28.476485][ T47] ? __pfx_skb_network_protocol (net/core/dev.c:3341) [ 28.476927][ T47] ? __pfx_qdisc_pkt_len_init (net/core/dev.c:3679) [ 28.477352][ T47] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5719) [ 28.477795][ 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) [ 28.478208][ T47] __dev_queue_xmit (./include/linux/netdevice.h:3369 net/core/dev.c:4338) [ 28.478595][ T47] ? mark_held_locks (kernel/locking/lockdep.c:4274) [ 28.478973][ T47] ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:4300 kernel/locking/lockdep.c:4359) [ 28.479480][ T47] ? __pfx___dev_queue_xmit (net/core/dev.c:4246) [ 28.479922][ T47] ip6_finish_output2 (./include/net/neighbour.h:540 net/ipv6/ip6_output.c:137) [ 28.480333][ T47] ip6_finish_output.constprop.0 (net/ipv6/ip6_output.c:211 net/ipv6/ip6_output.c:222) [ 28.480801][ T47] mld_sendpack (net/ipv6/mcast.c:1822) [ 28.481171][ T47] ? __pfx_mld_sendpack (net/ipv6/mcast.c:1779) [ 28.481656][ T47] ? mld_send_cr (net/ipv6/mcast.c:2096 (discriminator 11)) [ 28.482076][ T47] mld_ifc_work (net/ipv6/mcast.c:2652) [ 28.482465][ T47] process_one_work (kernel/workqueue.c:2633) [ 28.482888][ 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) [ 28.483311][ T47] ? __pfx_process_one_work (kernel/workqueue.c:2542) [ 28.483791][ T47] ? assign_work (kernel/workqueue.c:1101) [ 28.484167][ T47] worker_thread (kernel/workqueue.c:2700 kernel/workqueue.c:2787) [ 28.484583][ T47] ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:4300 kernel/locking/lockdep.c:4359) [ 28.485173][ T47] ? __pfx_worker_thread (kernel/workqueue.c:2733) [ 28.485600][ T47] ? __pfx_worker_thread (kernel/workqueue.c:2733) [ 28.486034][ T47] kthread (kernel/kthread.c:388) [ 28.486390][ T47] ? __pfx_kthread (kernel/kthread.c:341) [ 28.486815][ T47] ret_from_fork (arch/x86/kernel/process.c:147) [ 28.487218][ T47] ? __pfx_kthread (kernel/kthread.c:341) [ 28.487632][ T47] ret_from_fork_asm (arch/x86/entry/entry_64.S:250) | [ 28.488378][ T47] ---[ end trace ]--- | [ 28.488731][ T47] ------------[ cut here ]------------ | [ 28.489299][ T47] UBSAN: invalid-load in ./include/linux/skbuff.h:4267:9 | [ 28.489855][ T47] load of value 107 is not a valid value for type '_Bool' [ 28.490893][ T47] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 28.491572][ T47] Workqueue: mld mld_ifc_work [ 28.491878][ T47] Call Trace: [ 28.492052][ T47] [ 28.492246][ T47] dump_stack_lvl (lib/dump_stack.c:107) [ 28.492483][ T47] __ubsan_handle_load_invalid_value (lib/ubsan.c:218 lib/ubsan.c:419) [ 28.492844][ T47] skb_scrub_packet.cold (./include/linux/skbuff.h:4267 net/core/skbuff.c:6030) [ 28.493139][ T47] __dev_forward_skb2 (./include/linux/netdevice.h:4115 net/core/dev.c:2135) [ 28.493454][ T47] veth_xmit (drivers/net/veth.c:319 drivers/net/veth.c:374) [ 28.493775][ T47] ? __pfx_passthru_features_check (net/core/dev.c:3436) [ 28.494106][ 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) [ 28.494457][ T47] __dev_queue_xmit (./include/linux/netdevice.h:3369 net/core/dev.c:4338) [ 28.494818][ T47] ? _printk (kernel/printk/printk.c:2323) [ 28.495044][ T47] ? __pfx___dev_queue_xmit (net/core/dev.c:4246) [ 28.495406][ T47] br_dev_queue_push_xmit (net/bridge/br_forward.c:34) [ 28.495722][ T47] ? __pfx_br_dev_queue_push_xmit (net/bridge/br_forward.c:34) [ 28.496084][ 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) [ 28.496421][ 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) [ 28.496761][ T47] deliver_clone (net/bridge/br_forward.c:132) [ 28.497014][ T47] maybe_deliver (net/bridge/br_forward.c:191) [ 28.497313][ T47] br_flood (net/bridge/br_forward.c:236) [ 28.497552][ T47] br_dev_xmit (./include/linux/rcupdate.h:779 net/bridge/br_device.c:107) [ 28.497885][ T47] ? __pfx_br_dev_xmit (net/bridge/br_device.c:29) [ 28.498203][ T47] ? __dev_queue_xmit (./include/linux/bottom_half.h:20 ./include/linux/rcupdate.h:802 net/core/dev.c:4262) [ 28.498594][ T47] ? lock_acquire.part.0 (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5756) [ 28.498979][ T47] ? __pfx_skb_network_protocol (net/core/dev.c:3341) [ 28.499421][ T47] ? __pfx_qdisc_pkt_len_init (net/core/dev.c:3679) [ 28.499845][ T47] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5719) [ 28.500292][ 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) [ 28.500710][ T47] __dev_queue_xmit (./include/linux/netdevice.h:3369 net/core/dev.c:4338) [ 28.501099][ T47] ? mark_held_locks (kernel/locking/lockdep.c:4274) [ 28.501481][ T47] ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:4300 kernel/locking/lockdep.c:4359) [ 28.501981][ T47] ? __pfx___dev_queue_xmit (net/core/dev.c:4246) [ 28.502432][ T47] ip6_finish_output2 (./include/net/neighbour.h:540 net/ipv6/ip6_output.c:137) [ 28.502866][ T47] ip6_finish_output.constprop.0 (net/ipv6/ip6_output.c:211 net/ipv6/ip6_output.c:222) [ 28.503362][ T47] mld_sendpack (net/ipv6/mcast.c:1822) [ 28.503781][ T47] ? __pfx_mld_sendpack (net/ipv6/mcast.c:1779) [ 28.504278][ T47] ? mld_send_cr (net/ipv6/mcast.c:2096 (discriminator 11)) [ 28.504674][ T47] mld_ifc_work (net/ipv6/mcast.c:2652) [ 28.505080][ T47] process_one_work (kernel/workqueue.c:2633) [ 28.505525][ 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) [ 28.505932][ T47] ? __pfx_process_one_work (kernel/workqueue.c:2542) [ 28.506412][ T47] ? assign_work (kernel/workqueue.c:1101) [ 28.506870][ T47] worker_thread (kernel/workqueue.c:2700 kernel/workqueue.c:2787) [ 28.507287][ T47] ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:4300 kernel/locking/lockdep.c:4359) [ 28.507875][ T47] ? __pfx_worker_thread (kernel/workqueue.c:2733) [ 28.508331][ T47] ? __pfx_worker_thread (kernel/workqueue.c:2733) [ 28.508769][ T47] kthread (kernel/kthread.c:388) [ 28.509120][ T47] ? __pfx_kthread (kernel/kthread.c:341) [ 28.509534][ T47] ret_from_fork (arch/x86/kernel/process.c:147) [ 28.509897][ 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