====================================== | [ 934.127192][ T942] br0: port 2(veth2) entered forwarding state | [ 934.312832][ C1] ------------[ cut here ]------------ | [ 934.313268][ C1] UBSAN: invalid-load in ./include/linux/skbuff.h:4267:9 | [ 934.313672][ C1] load of value 107 is not a valid value for type '_Bool' [ 934.314472][ C1] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 934.315200][ C1] Workqueue: ipv6_addrconf addrconf_dad_work [ 934.315518][ C1] Call Trace: [ 934.315694][ C1] [ 934.315848][ C1] dump_stack_lvl (lib/dump_stack.c:107) [ 934.316119][ C1] __ubsan_handle_load_invalid_value (lib/ubsan.c:218 lib/ubsan.c:419) [ 934.316479][ C1] br_forward_finish.cold (./include/linux/spinlock.h:396 net/bridge/br.c:81) bridge [ 934.316983][ C1] deliver_clone (net/bridge/br_forward.c:132) bridge [ 934.317453][ C1] br_handle_frame_finish (net/bridge/br_input.c:215) bridge [ 934.317872][ C1] ? __pfx_br_handle_frame_finish (net/bridge/br_input.c:75) bridge [ 934.318294][ C1] ? 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) [ DETECTED CRASH, lowering timeout 934.318554][ C1] ? __lock_release (kernel/locking/lockdep.c:353 kernel/locking/lockdep.c:5436) [ 934.318811][ C1] ? __pfx___lock_release (kernel/locking/lockdep.c:5406) [ 934.319149][ C1] ? __pfx___lock_acquired (kernel/locking/lockdep.c:5959) [ 934.319464][ C1] br_handle_frame (net/bridge/br_input.c:417) bridge [ 934.319808][ C1] ? __pfx_br_handle_frame (net/bridge/br_input.c:321) bridge [ 934.320218][ C1] __netif_receive_skb_core.constprop.0 (net/core/dev.c:5448) [ 934.320594][ C1] ? mark_lock (kernel/locking/lockdep.c:4656 (discriminator 3)) [ 934.320838][ C1] ? __lock_acquire (kernel/locking/lockdep.c:5137) [ 934.321162][ C1] ? __pfx___netif_receive_skb_core.constprop.0 (net/core/dev.c:5341) [ 934.321616][ C1] ? lock_acquire.part.0 (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5756) [ 934.321902][ C1] ? process_backlog (./include/linux/rcupdate.h:298 ./include/linux/rcupdate.h:750 net/core/dev.c:5995) [ 934.322192][ C1] __netif_receive_skb_one_core (net/core/dev.c:5553) [ 934.322512][ C1] ? __pfx___netif_receive_skb_one_core (net/core/dev.c:5547) [ 934.322900][ C1] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5725) [ 934.323150][ C1] ? process_backlog (./include/linux/rcupdate.h:298 ./include/linux/rcupdate.h:750 net/core/dev.c:5995) [ 934.323432][ C1] process_backlog (./include/linux/rcupdate.h:779 net/core/dev.c:5997) [ 934.323687][ C1] __napi_poll.constprop.0 (net/core/dev.c:6625) [ 934.324005][ C1] net_rx_action (net/core/dev.c:6694 net/core/dev.c:6827) [ 934.324260][ C1] ? __pfx_net_rx_action (net/core/dev.c:6791) [ 934.324528][ C1] ? hlock_class (kernel/locking/lockdep.c:223) [ 934.324782][ C1] ? mark_held_locks (kernel/locking/lockdep.c:4274) [ 934.325053][ C1] __do_softirq (kernel/softirq.c:553) [ 934.325314][ C1] ? __dev_queue_xmit (./include/linux/rcupdate.h:308 ./include/linux/rcupdate.h:818 net/core/dev.c:4364) [ 934.325580][ C1] do_softirq (kernel/softirq.c:454 kernel/softirq.c:441) [ 934.325809][ C1] [ 934.325966][ C1] [ 934.326122][ C1] __local_bh_enable_ip (kernel/softirq.c:381) [ 934.326398][ C1] ? __dev_queue_xmit (./include/linux/rcupdate.h:308 ./include/linux/rcupdate.h:818 net/core/dev.c:4364) [ 934.326661][ C1] __dev_queue_xmit (net/core/dev.c:4365) [ 934.326950][ C1] ? mark_lock (kernel/locking/lockdep.c:4656 (discriminator 3)) [ 934.327184][ C1] ? mark_lock (kernel/locking/lockdep.c:4656 (discriminator 3)) [ 934.327424][ C1] ? mark_held_locks (kernel/locking/lockdep.c:4274) [ 934.327673][ C1] ? eth_header (net/ethernet/eth.c:100) [ 934.327913][ C1] ? __pfx___dev_queue_xmit (net/core/dev.c:4246) [ 934.328206][ C1] ip6_finish_output2 (./include/net/neighbour.h:542 net/ipv6/ip6_output.c:137) [ 934.328482][ C1] ip6_finish_output (net/ipv6/ip6_output.c:211 net/ipv6/ip6_output.c:222) [ 934.328738][ C1] ? 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) [ 934.328994][ C1] ip6_output (./include/linux/netfilter.h:303 net/ipv6/ip6_output.c:243) [ 934.329235][ C1] ? __pfx_ip6_output (net/ipv6/ip6_output.c:230) [ 934.329504][ C1] NF_HOOK.constprop.0 (./include/linux/rcupdate.h:298 ./include/linux/rcupdate.h:750 ./include/linux/netfilter.h:238 ./include/linux/netfilter.h:312) [ 934.329769][ C1] ? __pfx_NF_HOOK.constprop.0 (./include/linux/netfilter.h:308) [ 934.330077][ C1] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5719) [ 934.330370][ C1] ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:4300 kernel/locking/lockdep.c:4359) [ 934.330738][ C1] ndisc_send_skb (net/ipv6/ndisc.c:512 (discriminator 60)) [ 934.330995][ C1] ? __pfx_ndisc_send_skb (net/ipv6/ndisc.c:473) [ 934.331292][ C1] ? 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) [ 934.331534][ C1] ? __lock_release (kernel/locking/lockdep.c:353 kernel/locking/lockdep.c:5436) [ 934.331794][ C1] ndisc_send_ns (net/ipv6/ndisc.c:653) [ 934.332041][ C1] ? mark_lock (kernel/locking/lockdep.c:4656 (discriminator 3)) [ 934.332269][ C1] ? __pfx_ndisc_send_ns (net/ipv6/ndisc.c:653) [ 934.332546][ C1] ? mark_held_locks (kernel/locking/lockdep.c:4274) [ 934.332881][ C1] ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:4300 kernel/locking/lockdep.c:4359) [ 934.333233][ C1] addrconf_dad_work (net/ipv6/addrconf.c:4282) [ 934.333498][ C1] ? __pfx_addrconf_dad_work (net/ipv6/addrconf.c:4180) [ 934.333803][ C1] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5725) [ 934.334068][ C1] ? process_one_work (kernel/workqueue.c:2609) [ 934.334374][ C1] process_one_work (kernel/workqueue.c:2633) [ 934.334650][ C1] ? 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) [ 934.334894][ C1] ? __pfx_process_one_work (kernel/workqueue.c:2542) [ 934.335202][ C1] ? assign_work (kernel/workqueue.c:1101) [ 934.335447][ C1] worker_thread (kernel/workqueue.c:2700 kernel/workqueue.c:2787) [ 934.335715][ C1] ? __pfx_worker_thread (kernel/workqueue.c:2733) [ 934.335986][ C1] kthread (kernel/kthread.c:388) [ 934.336206][ C1] ? __pfx_kthread (kernel/kthread.c:341) [ 934.336468][ C1] ret_from_fork (arch/x86/kernel/process.c:147) [ 934.336714][ C1] ? __pfx_kthread (kernel/kthread.c:341) Finger prints: dump_stack_lvl:__ubsan_handle_load_invalid_value:deliver_clone:br_handle_frame_finish