====================================== | [ 181.293454][ T1186] br0: port 2(amtg) entered forwarding state | [ 181.296879][ C2] ------------[ cut here ]------------ | [ 181.297233][ C2] UBSAN: invalid-load in ./include/linux/skbuff.h:4267:9 | [ 181.297617][ C2] load of value 107 is not a valid value for type '_Bool' [ 181.298390][ C2] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 181.299013][ C2] Workqueue: amt amt_event_work [amt] [ 181.299305][ C2] Call Trace: [ 181.299483][ C2] [ 181.299642][ C2] dump_stack_lvl (lib/dump_stack.c:107) [ 181.299884][ C2] __ubsan_handle_load_invalid_value (lib/ubsan.c:218 lib/ubsan.c:419) [ 181.300209][ C2] br_forward_finish.cold (./include/linux/skbuff.h:4267 net/bridge/br_forward.c:65) [ 181.300486][ C2] deliver_clone (net/bridge/br_forward.c:132) [ 181.300718][ C2] br_handle_frame_finish (net/bridge/br_input.c:215) [ 181.301007][ C2] ? __ DETECTED CRASH, lowering timeout pfx_br_handle_frame_finish+0x10/0x10 [ 181.301310][ 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) [ 181.301551][ C2] ? __lock_release (kernel/locking/lockdep.c:353 kernel/locking/lockdep.c:5436) [ 181.301806][ C2] ? __pfx___lock_release (kernel/locking/lockdep.c:5406) [ 181.302073][ C2] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5719) [ 181.302369][ C2] ? ip_local_deliver_finish (./include/linux/rcupdate.h:308 ./include/linux/rcupdate.h:783 net/ipv4/ip_input.c:234) [ 181.302673][ C2] br_handle_frame (net/bridge/br_input.c:417) [ 181.302923][ C2] ? __pfx_br_handle_frame (net/bridge/br_input.c:321) [ 181.303197][ C2] __netif_receive_skb_core.constprop.0 (net/core/dev.c:5448) [ 181.303546][ C2] ? mark_lock (kernel/locking/lockdep.c:4656 (discriminator 3)) [ 181.303782][ C2] ? __lock_acquire (kernel/locking/lockdep.c:5137) [ 181.304038][ C2] ? __pfx___netif_receive_skb_core.constprop.0 (net/core/dev.c:5341) [ 181.304414][ C2] ? lock_acquire.part.0 (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5756) [ 181.304679][ C2] ? process_backlog (./include/linux/rcupdate.h:298 ./include/linux/rcupdate.h:750 net/core/dev.c:5995) [ 181.304939][ C2] __netif_receive_skb_one_core (net/core/dev.c:5553) [ 181.305243][ C2] ? __pfx___netif_receive_skb_one_core (net/core/dev.c:5547) [ 181.305579][ C2] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5725) [ 181.305820][ C2] ? process_backlog (./include/linux/rcupdate.h:298 ./include/linux/rcupdate.h:750 net/core/dev.c:5995) [ 181.306080][ C2] process_backlog (./include/linux/rcupdate.h:779 net/core/dev.c:5997) [ 181.306331][ C2] __napi_poll.constprop.0 (net/core/dev.c:6625) [ 181.306617][ C2] net_rx_action (net/core/dev.c:6694 net/core/dev.c:6827) [ 181.306870][ C2] ? __pfx_net_rx_action (net/core/dev.c:6791) [ 181.307134][ C2] ? lockdep_unlock (kernel/locking/lockdep.c:152 kernel/locking/lockdep.c:148) [ 181.307393][ C2] ? mark_held_locks (kernel/locking/lockdep.c:4274) [ 181.307665][ C2] __do_softirq (kernel/softirq.c:553) [ 181.307906][ C2] ? amt_membership_query_handler (./include/linux/bottom_half.h:33 drivers/net/amt.c:2441) amt [ 181.308255][ C2] do_softirq (kernel/softirq.c:454 kernel/softirq.c:441) [ 181.308478][ C2] [ 181.308632][ C2] [ 181.308787][ C2] __local_bh_enable_ip (kernel/softirq.c:381) [ 181.309051][ C2] amt_membership_query_handler (drivers/net/amt.c:2443) amt [ 181.309398][ C2] ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:4300 kernel/locking/lockdep.c:4359) [ 181.309737][ C2] amt_event_work (drivers/net/amt.c:2750 drivers/net/amt.c:2888) amt [ 181.310014][ C2] ? process_one_work (kernel/workqueue.c:2609) [ 181.310286][ C2] process_one_work (kernel/workqueue.c:2633) [ 181.310550][ 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) [ 181.310787][ C2] ? __pfx_process_one_work (kernel/workqueue.c:2542) [ 181.311074][ C2] ? assign_work (kernel/workqueue.c:1101) [ 181.311318][ C2] worker_thread (kernel/workqueue.c:2700 kernel/workqueue.c:2787) [ 181.311576][ C2] ? __pfx_worker_thread (kernel/workqueue.c:2733) [ 181.311838][ C2] kthread (kernel/kthread.c:388) [ 181.312050][ C2] ? __pfx_kthread (kernel/kthread.c:341) [ 181.312291][ C2] ret_from_fork (arch/x86/kernel/process.c:147) [ 181.312522][ C2] ? __pfx_kthread (kernel/kthread.c:341) [ 181.312761][ C2] ret_from_fork_asm (arch/x86/entry/entry_64.S:250) | [ 181.313200][ C2] ---[ end trace ]--- | [ 181.313436][ C2] ------------[ cut here ]------------ | [ 181.313740][ C2] UBSAN: invalid-load in ./include/linux/skbuff.h:4267:9 | [ 181.314095][ C2] load of value 107 is not a valid value for type '_Bool' [ 181.314871][ C2] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 181.315484][ C2] Workqueue: amt amt_event_work [amt] [ 181.315771][ C2] Call Trace: [ 181.315943][ C2] [ 181.316101][ C2] dump_stack_lvl (lib/dump_stack.c:107) [ 181.316338][ C2] __ubsan_handle_load_invalid_value (lib/ubsan.c:218 lib/ubsan.c:419) [ 181.316664][ C2] skb_scrub_packet.cold (./include/linux/skbuff.h:4267 net/core/skbuff.c:6030) [ 181.316934][ C2] __dev_forward_skb2 (./include/linux/netdevice.h:4115 net/core/dev.c:2135) [ 181.317208][ C2] veth_xmit (drivers/net/veth.c:319 drivers/net/veth.c:374) [ 181.317439][ C2] dev_hard_start_xmit (./include/linux/netdevice.h:4991 ./include/linux/netdevice.h:5005 net/core/dev.c:3530 net/core/dev.c:3546) [ 181.317733][ C2] __dev_queue_xmit (./include/linux/netdevice.h:3369 net/core/dev.c:4338) [ 181.317991][ C2] ? vprintk_emit (kernel/printk/printk.c:2313) [ 181.318241][ C2] ? _printk (kernel/printk/printk.c:2323) [ 181.318455][ C2] ? __pfx___dev_queue_xmit (net/core/dev.c:4246) [ 181.318747][ C2] br_dev_queue_push_xmit (net/bridge/br_forward.c:34) [ 181.319023][ C2] ? __pfx_br_dev_queue_push_xmit (net/bridge/br_forward.c:34) [ 181.319340][ C2] deliver_clone (net/bridge/br_forward.c:132) [ 181.319574][ C2] br_handle_frame_finish (net/bridge/br_input.c:215) [ 181.319866][ C2] ? __pfx_br_handle_frame_finish (net/bridge/br_input.c:75) [ 181.320166][ 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) [ 181.320408][ C2] ? __lock_release (kernel/locking/lockdep.c:353 kernel/locking/lockdep.c:5436) [ 181.320663][ C2] ? __pfx___lock_release (kernel/locking/lockdep.c:5406) [ 181.320930][ C2] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5719) [ 181.321226][ C2] ? ip_local_deliver_finish (./include/linux/rcupdate.h:308 ./include/linux/rcupdate.h:783 net/ipv4/ip_input.c:234) [ 181.321534][ C2] br_handle_frame (net/bridge/br_input.c:417) [ 181.321784][ C2] ? __pfx_br_handle_frame (net/bridge/br_input.c:321) [ 181.322071][ C2] __netif_receive_skb_core.constprop.0 (net/core/dev.c:5448) [ 181.322416][ C2] ? mark_lock (kernel/locking/lockdep.c:4656 (discriminator 3)) [ 181.322647][ C2] ? __lock_acquire (kernel/locking/lockdep.c:5137) [ 181.322903][ C2] ? __pfx___netif_receive_skb_core.constprop.0 (net/core/dev.c:5341) [ 181.323277][ C2] ? lock_acquire.part.0 (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5756) [ 181.323545][ C2] ? process_backlog (./include/linux/rcupdate.h:298 ./include/linux/rcupdate.h:750 net/core/dev.c:5995) [ 181.323806][ C2] __netif_receive_skb_one_core (net/core/dev.c:5553) [ 181.324107][ C2] ? __pfx___netif_receive_skb_one_core (net/core/dev.c:5547) [ 181.324448][ C2] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5725) [ 181.324689][ C2] ? process_backlog (./include/linux/rcupdate.h:298 ./include/linux/rcupdate.h:750 net/core/dev.c:5995) [ 181.324948][ C2] process_backlog (./include/linux/rcupdate.h:779 net/core/dev.c:5997) [ 181.325203][ C2] __napi_poll.constprop.0 (net/core/dev.c:6625) [ 181.325491][ C2] net_rx_action (net/core/dev.c:6694 net/core/dev.c:6827) [ 181.325744][ C2] ? __pfx_net_rx_action (net/core/dev.c:6791) [ 181.326015][ C2] ? lockdep_unlock (kernel/locking/lockdep.c:152 kernel/locking/lockdep.c:148) [ 181.326273][ C2] ? mark_held_locks (kernel/locking/lockdep.c:4274) [ 181.326528][ C2] __do_softirq (kernel/softirq.c:553) [ 181.326767][ C2] ? amt_membership_query_handler (./include/linux/bottom_half.h:33 drivers/net/amt.c:2441) amt [ 181.327117][ C2] do_softirq (kernel/softirq.c:454 kernel/softirq.c:441) [ 181.327332][ C2] [ 181.327501][ C2] [ 181.327657][ C2] __local_bh_enable_ip (kernel/softirq.c:381) [ 181.327921][ C2] amt_membership_query_handler (drivers/net/amt.c:2443) amt [ 181.328266][ C2] ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:4300 kernel/locking/lockdep.c:4359) [ 181.328606][ C2] amt_event_work (drivers/net/amt.c:2750 drivers/net/amt.c:2888) amt [ 181.328888][ C2] ? process_one_work (kernel/workqueue.c:2609) [ 181.329158][ C2] process_one_work (kernel/workqueue.c:2633) [ 181.329424][ 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) [ 181.329661][ C2] ? __pfx_process_one_work (kernel/workqueue.c:2542) [ 181.329948][ C2] ? assign_work (kernel/workqueue.c:1101) [ 181.330193][ C2] worker_thread (kernel/workqueue.c:2700 kernel/workqueue.c:2787) [ 181.330452][ C2] ? __pfx_worker_thread (kernel/workqueue.c:2733) [ 181.330720][ C2] kthread (kernel/kthread.c:388) [ 181.330931][ C2] ? __pfx_kthread (kernel/kthread.c:341) [ 181.331173][ C2] ret_from_fork (arch/x86/kernel/process.c:147) [ 181.331404][ C2] ? __pfx_kthread (kernel/kthread.c:341) Finger prints: dump_stack_lvl:__ubsan_handle_load_invalid_value:deliver_clone:br_handle_frame_finish dump_stack_lvl:__ubsan_handle_load_invalid_value:__dev_forward_skb2:veth_xmit