====================================== | [ 28.408892][ T47] br0: port 2(eth1) entered forwarding state | [ 28.442369][ T48] ------------[ cut here ]------------ | [ 28.442921][ T48] UBSAN: invalid-load in ./include/linux/skbuff.h:4267:9 | [ 28.443476][ T48] load of value 107 is not a valid value for type '_Bool' [ 28.444695][ T48] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 28.445712][ T48] Workqueue: mld mld_ifc_work [ 28.446107][ T48] Call Trace: [ 28.446408][ T48] [ 28.446652][ T48] dump_stack_lvl (lib/dump_stack.c:107) [ 28.447008][ T48] __ubsan_handle_load_invalid_value (lib/ubsan.c:218 lib/ubsan.c:419) [ 28.447513][ T48] ? __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) [ 28.447955][ T48] __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) [ 28.448367][ T48] deliver_clone (net/bridge/br_forward.c:132) [ 28.448756][ T48] maybe_deliver (net/bridge/br_forward.c:191) [ 28.449147][ T48] br_flood (net/bridge/br_forward.c:236) [ 28.449539][ T48] br_dev_xmit (./include/linux/rcupdate.h:779 net/bridge/br_device.c:107) [ 28.449944][ T48] ? __pfx_br_dev_xmit (net/bridge/br_device.c:29) [ 28.450371][ T48] ? __dev_queue_xmit (./include/linux/bottom_half.h:20 ./include/linux/rcupdate.h:802 net/core/dev.c:4262) [ 28.450823][ T48] ? lock_acquire.part.0 (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5756) [ 28.451276][ T48] ? __pfx_skb_network_protocol (net/core/dev.c:3341) [ 28.451762][ T48] ? __pfx_qdisc_pkt_len_init (net/core/dev.c:3679) [ 28.452213][ T48] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5719) [ 28.452750][ T48] dev_hard_start_xmit (./include/linux/netdevice.h:4991 ./include/linux/netdevice.h:5005 net/core/dev.c:3530 net/core/dev.c:3546) [ 28.453199][ T48] __dev_queue_xmit (./include/linux/netdevice.h:3369 net/core/dev.c:4338) [ 28.453608][ T48] ? mark_held_locks (kernel/locking/lockdep.c:4274) [ 28.454027][ T48] ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:4300 kernel/locking/lockdep.c:4359) [ 28.454573][ T48] ? __pfx___dev_queue_xmit (net/core/dev.c:4246) [ 28.455050][ T48] ip6_finish_output2 (./include/net/neighbour.h:540 net/ipv6/ip6_output.c:137) [ 28.455505][ T48] ip6_finish_output.constprop.0 (net/ipv6/ip6_output.c:211 net/ipv6/ip6_output.c:222) [ 28.456015][ T48] mld_sendpack (net/ipv6/mcast.c:1822) [ 28.456375][ T48] ? __pfx_mld_sendpack (net/ipv6/mcast.c:1779) [ 28.456793][ T48] ? mld_send_cr (net/ipv6/mcast.c:2096 (discriminator 11)) [ 28.457164][ T48] mld_ifc_work (net/ipv6/mcast.c:2652) [ 28.457517][ T48] process_one_work (kernel/workqueue.c:2633) [ 28.457926][ T48] ? 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) [ 28.458280][ T48] ? __pfx_process_one_work (kernel/workqueue.c:2542) [ 28.458719][ T48] ? assign_work (kernel/workqueue.c:1101) [ 28.459092][ T48] worker_thread (kernel/workqueue.c:2700 kernel/workqueue.c:2787) [ 28.459457][ T48] ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:4300 kernel/locking/lockdep.c:4359) [ 28.459979][ T48] ? __pfx_worker_thread (kernel/workqueue.c:2733) [ 28.460411][ T48] ? __pfx_worker_thread (kernel/workqueue.c:2733) [ 28.460822][ T48] kthread (kernel/kthread.c:388) [ 28.461167][ T48] ? __pfx_kthread (kernel/kthread.c:341) [ 28.461580][ T48] ret_from_fork (arch/x86/kernel/process.c:147) [ 28.461963][ T48] ? __pfx_kthread (kernel/kthread.c:341) [ 28.462345][ T48] ret_from_fork_asm (arch/x86/entry/entry_64.S:250) | [ 28.463113][ T48] ---[ end trace ]--- | [ 28.463515][ T48] ------------[ cut here ]------------ | [ 28.464021][ T48] UBSAN: invalid-load in ./include/linux/skbuff.h:4267:9 | [ 28.464656][ T48] load of value 107 is not a valid value for type '_Bool' [ 28.465902][ T48] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 28.466938][ T48] Workqueue: mld mld_ifc_work [ 28.467354][ T48] Call Trace: [ 28.467660][ T48] [ 28.467927][ T48] dump_stack_lvl (lib/dump_stack.c:107) [ 28.468304][ T48] __ubsan_handle_load_invalid_value (lib/ubsan.c:218 lib/ubsan.c:419) [ 28.468835][ T48] skb_scrub_packet.cold (./include/linux/skbuff.h:4267 net/core/skbuff.c:6030) [ 28.469291][ T48] __dev_forward_skb2 (./include/linux/netdevice.h:4115 net/core/dev.c:2135) [ 28.469723][ T48] veth_xmit (drivers/net/veth.c:319 drivers/net/veth.c:374) [ 28.470069][ T48] ? __pfx_passthru_features_check (net/core/dev.c:3436) [ 28.470611][ T48] dev_hard_start_xmit (./include/linux/netdevice.h:4991 ./include/linux/netdevice.h:5005 net/core/dev.c:3530 net/core/dev.c:3546) [ 28.471076][ T48] __dev_queue_xmit (./include/linux/netdevice.h:3369 net/core/dev.c:4338) [ 28.471491][ T48] ? _printk (kernel/printk/printk.c:2323) [ 28.471856][ T48] ? __pfx___dev_queue_xmit (net/core/dev.c:4246) [ 28.472365][ T48] br_dev_queue_push_xmit (net/bridge/br_forward.c:34) [ 28.472829][ T48] ? __pfx_br_dev_queue_push_xmit (net/bridge/br_forward.c:34) [ 28.473332][ T48] ? __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) [ 28.473785][ T48] ? __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) [ 28.474212][ T48] deliver_clone (net/bridge/br_forward.c:132) [ 28.474598][ T48] maybe_deliver (net/bridge/br_forward.c:191) [ 28.475009][ T48] br_flood (net/bridge/br_forward.c:236) [ 28.475402][ T48] br_dev_xmit (./include/linux/rcupdate.h:779 net/bridge/br_device.c:107) [ 28.475782][ T48] ? __pfx_br_dev_xmit (net/bridge/br_device.c:29) [ 28.476213][ T48] ? __dev_queue_xmit (./include/linux/bottom_half.h:20 ./include/linux/rcupdate.h:802 net/core/dev.c:4262) [ 28.476683][ T48] ? lock_acquire.part.0 (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5756) [ 28.477101][ T48] ? __pfx_skb_network_protocol (net/core/dev.c:3341) [ 28.477553][ T48] ? __pfx_qdisc_pkt_len_init (net/core/dev.c:3679) [ 28.477986][ T48] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5719) [ 28.478445][ T48] dev_hard_start_xmit (./include/linux/netdevice.h:4991 ./include/linux/netdevice.h:5005 net/core/dev.c:3530 net/core/dev.c:3546) [ 28.478870][ T48] __dev_queue_xmit (./include/linux/netdevice.h:3369 net/core/dev.c:4338) [ 28.479267][ T48] ? mark_held_locks (kernel/locking/lockdep.c:4274) [ 28.479653][ T48] ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:4300 kernel/locking/lockdep.c:4359) [ 28.480154][ T48] ? __pfx___dev_queue_xmit (net/core/dev.c:4246) [ 28.480612][ T48] ip6_finish_output2 (./include/net/neighbour.h:540 net/ipv6/ip6_output.c:137) [ 28.481053][ T48] ip6_finish_output.constprop.0 (net/ipv6/ip6_output.c:211 net/ipv6/ip6_output.c:222) [ 28.481574][ T48] mld_sendpack (net/ipv6/mcast.c:1822) [ 28.482014][ T48] ? __pfx_mld_sendpack (net/ipv6/mcast.c:1779) [ 28.482492][ T48] ? mld_send_cr (net/ipv6/mcast.c:2096 (discriminator 11)) [ 28.482898][ T48] mld_ifc_work (net/ipv6/mcast.c:2652) [ 28.483184][ T48] process_one_work (kernel/workqueue.c:2633) [ 28.483457][ T48] ? 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) [ 28.483746][ T48] ? __pfx_process_one_work (kernel/workqueue.c:2542) [ 28.484060][ T48] ? assign_work (kernel/workqueue.c:1101) [ 28.484352][ T48] worker_thread (kernel/workqueue.c:2700 kernel/workqueue.c:2787) [ 28.484643][ T48] ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:4300 kernel/locking/lockdep.c:4359) [ 28.485032][ T48] ? __pfx_worker_thread (kernel/workqueue.c:2733) [ 28.485303][ T48] ? __pfx_worker_thread (kernel/workqueue.c:2733) [ 28.485600][ T48] kthread (kernel/kthread.c:388) [ 28.485858][ T48] ? __pfx_kthread (kernel/kthread.c:341) [ 28.486146][ T48] ret_from_fork (arch/x86/kernel/process.c:147) [ 28.486380][ T48] ? __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