INFO: task kworker/u4:0:10 blocked for more than 143 seconds. Not tainted 6.4.0-syzkaller-12069-gc17414a273b8 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/u4:0 state:D stack:23800 pid:10 ppid:2 flags:0x00004000 Workqueue: netns cleanup_net Call Trace: context_switch kernel/sched/core.c:5381 [inline] __schedule+0xc9a/0x5880 kernel/sched/core.c:6710 schedule+0xde/0x1a0 kernel/sched/core.c:6786 schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6845 __mutex_lock_common kernel/locking/mutex.c:679 [inline] __mutex_lock+0xa3b/0x1350 kernel/locking/mutex.c:747 cangw_pernet_exit_batch+0x15/0xa0 net/can/gw.c:1257 ops_exit_list+0x125/0x170 net/core/net_namespace.c:175 cleanup_net+0x4ee/0xb10 net/core/net_namespace.c:614 process_one_work+0xa34/0x16f0 kernel/workqueue.c:2597 worker_thread+0x67d/0x10c0 kernel/workqueue.c:2748 kthread+0x344/0x440 kernel/kthread.c:389 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308 INFO: task syz-executor.2:6187 blocked for more than 144 seconds. Not tainted 6.4.0-syzkaller-12069-gc17414a273b8 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.2 state:D stack:27664 pid:6187 ppid:5072 flags:0x20004006 Call Trace: context_switch kernel/sched/core.c:5381 [inline] __schedule+0xc9a/0x5880 kernel/sched/core.c:6710 schedule+0xde/0x1a0 kernel/sched/core.c:6786 schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6845 __mutex_lock_common kernel/locking/mutex.c:679 [inline] __mutex_lock+0xa3b/0x1350 kernel/locking/mutex.c:747 smc_pnet_create_pnetids_list net/smc/smc_pnet.c:809 [inline] smc_pnet_net_init+0x131/0x230 net/smc/smc_pnet.c:878 smc_net_init+0x35/0x50 net/smc/af_smc.c:3347 ops_init+0xb9/0x6b0 net/core/net_namespace.c:136 setup_net+0x422/0xa40 net/core/net_namespace.c:339 copy_net_ns+0x334/0x6c0 net/core/net_namespace.c:491 create_new_namespaces+0x3f6/0xb20 kernel/nsproxy.c:110 unshare_nsproxy_namespaces+0xc1/0x1f0 kernel/nsproxy.c:228 ksys_unshare+0x449/0x920 kernel/fork.c:3437 __do_sys_unshare kernel/fork.c:3508 [inline] __se_sys_unshare kernel/fork.c:3506 [inline] __ia32_sys_unshare+0x30/0x40 kernel/fork.c:3506 do_syscall_32_irqs_on arch/x86/entry/common.c:112 [inline] __do_fast_syscall_32+0x65/0xf0 arch/x86/entry/common.c:178 do_fast_syscall_32+0x33/0x70 arch/x86/entry/common.c:203 entry_SYSENTER_compat_after_hwframe+0x70/0x82 RIP: 0023:0xf7f0b579 RSP: 002b:00000000f5bdd5cc EFLAGS: 00000296 ORIG_RAX: 0000000000000136 RAX: ffffffffffffffda RBX: 000000006c060000 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 Showing all locks held in the system: 4 locks held by kworker/0:0/7: 2 locks held by kworker/0:1/9: 4 locks held by kworker/u4:0/10: #0: ffff888014667938 ((wq_completion)netns){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:20 [inline] #0: ffff888014667938 ((wq_completion)netns){+.+.}-{0:0}, at: raw_atomic64_set include/linux/atomic/atomic-arch-fallback.h:2608 [inline] #0: ffff888014667938 ((wq_completion)netns){+.+.}-{0:0}, at: raw_atomic_long_set include/linux/atomic/atomic-long.h:79 [inline] #0: ffff888014667938 ((wq_completion)netns){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:3196 [inline] #0: ffff888014667938 ((wq_completion)netns){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:675 [inline] #0: ffff888014667938 ((wq_completion)netns){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:702 [inline] #0: ffff888014667938 ((wq_completion)netns){+.+.}-{0:0}, at: process_one_work+0x8fd/0x16f0 kernel/workqueue.c:2567 #1: ffffc900000f7db0 (net_cleanup_work){+.+.}-{0:0}, at: process_one_work+0x930/0x16f0 kernel/workqueue.c:2571 #2: ffffffff8e3ba510 (pernet_ops_rwsem){++++}-{3:3}, at: cleanup_net+0x9f/0xb10 net/core/net_namespace.c:576 #3: ffffffff8e3cea68 (rtnl_mutex){+.+.}-{3:3}, at: cangw_pernet_exit_batch+0x15/0xa0 net/can/gw.c:1257 1 lock held by rcu_tasks_kthre/13: #0: ffffffff8c9a3af0 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x31/0xd80 kernel/rcu/tasks.h:522 1 lock held by rcu_tasks_trace/14: #0: ffffffff8c9a37f0 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x31/0xd80 kernel/rcu/tasks.h:522 1 lock held by khungtaskd/28: #0: ffffffff8c9a4700 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x55/0x340 kernel/locking/lockdep.c:6615 3 locks held by kworker/0:2/917: 4 locks held by kworker/0:3/4770: 2 locks held by getty/4787: #0: ffff88802b108098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x26/0x80 drivers/tty/tty_ldisc.c:243 #1: ffffc900015b02f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xf08/0x13f0 drivers/tty/n_tty.c:2187 4 locks held by kworker/0:4/5116: 4 locks held by kworker/0:9/5123: #0: ffff888012871d38 ((wq_completion)events_power_efficient){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:20 [inline] #0: ffff888012871d38 ((wq_completion)events_power_efficient){+.+.}-{0:0}, at: raw_atomic64_set include/linux/atomic/atomic-arch-fallback.h:2608 [inline] #0: ffff888012871d38 ((wq_completion)events_power_efficient){+.+.}-{0:0}, at: raw_atomic_long_set include/linux/atomic/atomic-long.h:79 [inline] #0: ffff888012871d38 ((wq_completion)events_power_efficient){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:3196 [inline] #0: ffff888012871d38 ((wq_completion)events_power_efficient){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:675 [inline] #0: ffff888012871d38 ((wq_completion)events_power_efficient){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:702 [inline] #0: ffff888012871d38 ((wq_completion)events_power_efficient){+.+.}-{0:0}, at: process_one_work+0x8fd/0x16f0 kernel/workqueue.c:2567 #1: ffffc900044bfdb0 ((reg_check_chans).work){+.+.}-{0:0}, at: process_one_work+0x930/0x16f0 kernel/workqueue.c:2571 #2: ffffffff8e3cea68 (rtnl_mutex){+.+.}-{3:3}, at: reg_check_chans_work+0x82/0x1040 net/wireless/reg.c:2462 #3: ffff8880767e0768 (&rdev->wiphy.mtx){+.+.}-{3:3}, at: wiphy_lock include/net/cfg80211.h:5773 [inline] #3: ffff8880767e0768 (&rdev->wiphy.mtx){+.+.}-{3:3}, at: reg_leave_invalid_chans net/wireless/reg.c:2450 [inline] #3: ffff8880767e0768 (&rdev->wiphy.mtx){+.+.}-{3:3}, at: reg_check_chans_work+0x103/0x1040 net/wireless/reg.c:2465 3 locks held by kworker/1:15/5836: #0: ffff888027d6f138 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:20 [inline] #0: ffff888027d6f138 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: raw_atomic64_set include/linux/atomic/atomic-arch-fallback.h:2608 [inline] #0: ffff888027d6f138 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: raw_atomic_long_set include/linux/atomic/atomic-long.h:79 [inline] #0: ffff888027d6f138 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:3196 [inline] #0: ffff888027d6f138 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:675 [inline] #0: ffff888027d6f138 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:702 [inline] #0: ffff888027d6f138 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work+0x8fd/0x16f0 kernel/workqueue.c:2567 #1: ffffc9000b8dfdb0 ((work_completion)(&(&ifa->dad_work)->work)){+.+.}-{0:0}, at: process_one_work+0x930/0x16f0 kernel/workqueue.c:2571 #2: ffffffff8e3cea68 (rtnl_mutex){+.+.}-{3:3}, at: addrconf_dad_work+0xa7/0x1390 net/ipv6/addrconf.c:4088 1 lock held by syz-executor.2/6186: #0: ffffffff8e3cea68 (rtnl_mutex){+.+.}-{3:3}, at: addrconf_set_dstaddr+0xb6/0x2d0 net/ipv6/addrconf.c:2882 2 locks held by syz-executor.2/6187: #0: ffffffff8e3ba510 (pernet_ops_rwsem){++++}-{3:3}, at: copy_net_ns+0x311/0x6c0 net/core/net_namespace.c:487 #1: ffffffff8e3cea68 (rtnl_mutex){+.+.}-{3:3}, at: smc_pnet_create_pnetids_list net/smc/smc_pnet.c:809 [inline] #1: ffffffff8e3cea68 (rtnl_mutex){+.+.}-{3:3}, at: smc_pnet_net_init+0x131/0x230 net/smc/smc_pnet.c:878 3 locks held by kworker/0:10/6209: #0: ffff888027d6f138 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:20 [inline] #0: ffff888027d6f138 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: raw_atomic64_set include/linux/atomic/atomic-arch-fallback.h:2608 [inline] #0: ffff888027d6f138 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: raw_atomic_long_set include/linux/atomic/atomic-long.h:79 [inline] #0: ffff888027d6f138 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:3196 [inline] #0: ffff888027d6f138 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:675 [inline] #0: ffff888027d6f138 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:702 [inline] #0: ffff888027d6f138 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work+0x8fd/0x16f0 kernel/workqueue.c:2567 #1: ffffc90005c9fdb0 ((work_completion)(&(&net->ipv6.addr_chk_work)->work)){+.+.}-{0:0}, at: process_one_work+0x930/0x16f0 kernel/workqueue.c:2571 #2: ffffffff8e3cea68 (rtnl_mutex){+.+.}-{3:3}, at: addrconf_verify_work+0x12/0x30 net/ipv6/addrconf.c:4630 1 lock held by syz-executor.0/6211: #0: ffffffff8e3cea68 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:78 [inline] #0: ffffffff8e3cea68 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x3e8/0xd50 net/core/rtnetlink.c:6421 1 lock held by syz-executor.4/6214: #0: ffffffff8e3cea68 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:78 [inline] #0: ffffffff8e3cea68 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x3e8/0xd50 net/core/rtnetlink.c:6421 1 lock held by syz-executor.5/6219: #0: ffffffff8e3cea68 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:78 [inline] #0: ffffffff8e3cea68 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x3e8/0xd50 net/core/rtnetlink.c:6421 1 lock held by syz-executor.5/6222: #0: ffffffff8e3cea68 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:78 [inline] #0: ffffffff8e3cea68 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x3e8/0xd50 net/core/rtnetlink.c:6421 2 locks held by kworker/0:12/6227: 2 locks held by syz-executor.1/6241: #0: ffffffff8e468390 (cb_lock){++++}-{3:3}, at: genl_rcv+0x19/0x40 net/netlink/genetlink.c:1077 #1: ffffffff8e3cea68 (rtnl_mutex){+.+.}-{3:3}, at: ethnl_default_set_doit+0x268/0x600 net/ethtool/netlink.c:637 2 locks held by syz-executor.2/6247: #0: ffffffff8e3ba510 (pernet_ops_rwsem){++++}-{3:3}, at: copy_net_ns+0x311/0x6c0 net/core/net_namespace.c:487 #1: ffffffff8e3cea68 (rtnl_mutex){+.+.}-{3:3}, at: smc_pnet_create_pnetids_list net/smc/smc_pnet.c:809 [inline] #1: ffffffff8e3cea68 (rtnl_mutex){+.+.}-{3:3}, at: smc_pnet_net_init+0x131/0x230 net/smc/smc_pnet.c:878 3 locks held by kworker/0:14/6252: 2 locks held by syz-executor.0/6259: #0: ffffffff8e3ba510 (pernet_ops_rwsem){++++}-{3:3}, at: copy_net_ns+0x311/0x6c0 net/core/net_namespace.c:487 #1: ffffffff8e3cea68 (rtnl_mutex){+.+.}-{3:3}, at: smc_pnet_create_pnetids_list net/smc/smc_pnet.c:809 [inline] #1: ffffffff8e3cea68 (rtnl_mutex){+.+.}-{3:3}, at: smc_pnet_net_init+0x131/0x230 net/smc/smc_pnet.c:878 2 locks held by syz-executor.4/6263: #0: ffffffff8e3ba510 (pernet_ops_rwsem){++++}-{3:3}, at: copy_net_ns+0x311/0x6c0 net/core/net_namespace.c:487 #1: ffffffff8e3cea68 (rtnl_mutex){+.+.}-{3:3}, at: smc_pnet_create_pnetids_list net/smc/smc_pnet.c:809 [inline] #1: ffffffff8e3cea68 (rtnl_mutex){+.+.}-{3:3}, at: smc_pnet_net_init+0x131/0x230 net/smc/smc_pnet.c:878 2 locks held by syz-executor.5/6266: #0: ffffffff8e3ba510 (pernet_ops_rwsem){++++}-{3:3}, at: copy_net_ns+0x311/0x6c0 net/core/net_namespace.c:487 #1: ffffffff8e3cea68 (rtnl_mutex){+.+.}-{3:3}, at: smc_pnet_create_pnetids_list net/smc/smc_pnet.c:809 [inline] #1: ffffffff8e3cea68 (rtnl_mutex){+.+.}-{3:3}, at: smc_pnet_net_init+0x131/0x230 net/smc/smc_pnet.c:878 2 locks held by syz-executor.2/6276: #0: ffffffff8e3ba510 (pernet_ops_rwsem){++++}-{3:3}, at: copy_net_ns+0x311/0x6c0 net/core/net_namespace.c:487 #1: ffffffff8e3cea68 (rtnl_mutex){+.+.}-{3:3}, at: smc_pnet_create_pnetids_list net/smc/smc_pnet.c:809 [inline] #1: ffffffff8e3cea68 (rtnl_mutex){+.+.}-{3:3}, at: smc_pnet_net_init+0x131/0x230 net/smc/smc_pnet.c:878 2 locks held by syz-executor.0/6284: #0: ffffffff8e3ba510 (pernet_ops_rwsem){++++}-{3:3}, at: copy_net_ns+0x311/0x6c0 net/core/net_namespace.c:487 #1: ffffffff8e3cea68 (rtnl_mutex){+.+.}-{3:3}, at: smc_pnet_create_pnetids_list net/smc/smc_pnet.c:809 [inline] #1: ffffffff8e3cea68 (rtnl_mutex){+.+.}-{3:3}, at: smc_pnet_net_init+0x131/0x230 net/smc/smc_pnet.c:878 2 locks held by syz-executor.4/6287: #0: ffffffff8e3ba510 (pernet_ops_rwsem){++++}-{3:3}, at: copy_net_ns+0x311/0x6c0 net/core/net_namespace.c:487 #1: ffffffff8e3cea68 (rtnl_mutex){+.+.}-{3:3}, at: smc_pnet_create_pnetids_list net/smc/smc_pnet.c:809 [inline] #1: ffffffff8e3cea68 (rtnl_mutex){+.+.}-{3:3}, at: smc_pnet_net_init+0x131/0x230 net/smc/smc_pnet.c:878 2 locks held by syz-executor.5/6290: #0: ffffffff8e3ba510 (pernet_ops_rwsem){++++}-{3:3}, at: copy_net_ns+0x311/0x6c0 net/core/net_namespace.c:487 #1: ffffffff8e3cea68 (rtnl_mutex){+.+.}-{3:3}, at: smc_pnet_create_pnetids_list net/smc/smc_pnet.c:809 [inline] #1: ffffffff8e3cea68 (rtnl_mutex){+.+.}-{3:3}, at: smc_pnet_net_init+0x131/0x230 net/smc/smc_pnet.c:878 ============================================= NMI backtrace for cpu 1 CPU: 1 PID: 28 Comm: khungtaskd Not tainted 6.4.0-syzkaller-12069-gc17414a273b8 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/27/2023 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0xd9/0x150 lib/dump_stack.c:106 nmi_cpu_backtrace+0x29c/0x350 lib/nmi_backtrace.c:113 nmi_trigger_cpumask_backtrace+0x2a4/0x300 lib/nmi_backtrace.c:62 trigger_all_cpu_backtrace include/linux/nmi.h:160 [inline] check_hung_uninterruptible_tasks kernel/hung_task.c:222 [inline] watchdog+0xe16/0x1090 kernel/hung_task.c:379 kthread+0x344/0x440 kernel/kthread.c:389 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 9 Comm: kworker/0:1 Not tainted 6.4.0-syzkaller-12069-gc17414a273b8 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/27/2023 Workqueue: events_power_efficient neigh_periodic_work RIP: 0010:unwind_next_frame+0x3e1/0x1f70 arch/x86/kernel/unwind_orc.c:505 Code: e8 04 f3 ff ff 48 89 c1 48 85 c9 0f 84 a0 02 00 00 4c 8d 79 05 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48 c1 ea 03 0f b6 04 02 <4c> 89 fa 83 e2 07 38 d0 7f 08 84 c0 0f 85 39 15 00 00 0f b6 41 05 RSP: 0018:ffffc90000006bf8 EFLAGS: 00000a03 RAX: 0000000000000000 RBX: 0000000000000002 RCX: ffffffff8f3f1b72 RDX: 1ffffffff1e7e36e RSI: ffffffff8f3f1b2a RDI: ffffffff8ec231a0 RBP: ffffc90000006cb0 R08: ffffffff8f3f1b2a R09: ffffc90000006d88 R10: ffffc90000006c68 R11: 0000000000096001 R12: ffffc90000006cb8 R13: ffffc90000006c68 R14: ffffc90000006c9d R15: ffffffff8f3f1b77 FS: 0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055f0154939f8 CR3: 000000002ac24000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: arch_stack_walk+0x81/0xf0 arch/x86/kernel/stacktrace.c:25 stack_trace_save+0x90/0xc0 kernel/stacktrace.c:122 kasan_save_stack+0x22/0x40 mm/kasan/common.c:45 kasan_set_track+0x25/0x30 mm/kasan/common.c:52 kasan_save_free_info+0x2b/0x40 mm/kasan/generic.c:521 ____kasan_slab_free mm/kasan/common.c:236 [inline] ____kasan_slab_free+0x160/0x1c0 mm/kasan/common.c:200 kasan_slab_free include/linux/kasan.h:162 [inline] slab_free_hook mm/slub.c:1792 [inline] slab_free_freelist_hook+0x8b/0x1c0 mm/slub.c:1818 slab_free mm/slub.c:3801 [inline] kmem_cache_free+0xf0/0x490 mm/slub.c:3823 __skb_ext_put+0x12b/0x2e0 net/core/skbuff.c:6711 skb_ext_put include/linux/skbuff.h:4642 [inline] skb_release_head_state+0x1c3/0x2a0 net/core/skbuff.c:993 skb_release_all net/core/skbuff.c:1000 [inline] __kfree_skb net/core/skbuff.c:1016 [inline] kfree_skb_reason+0x139/0x3c0 net/core/skbuff.c:1052 kfree_skb include/linux/skbuff.h:1237 [inline] ip6_mc_input+0xa3c/0xf50 net/ipv6/ip6_input.c:588 dst_input include/net/dst.h:468 [inline] ip6_rcv_finish+0x197/0x2c0 net/ipv6/ip6_input.c:79 ip_sabotage_in+0x22a/0x2a0 net/bridge/br_netfilter_hooks.c:880 nf_hook_entry_hookfn include/linux/netfilter.h:143 [inline] nf_hook_slow+0xc9/0x1f0 net/netfilter/core.c:626 nf_hook.constprop.0+0x408/0x710 include/linux/netfilter.h:258 NF_HOOK include/linux/netfilter.h:301 [inline] ipv6_rcv+0xa2/0x380 net/ipv6/ip6_input.c:309 __netif_receive_skb_one_core+0x114/0x180 net/core/dev.c:5452 __netif_receive_skb+0x1f/0x1c0 net/core/dev.c:5566 netif_receive_skb_internal net/core/dev.c:5652 [inline] netif_receive_skb+0x133/0x7a0 net/core/dev.c:5711 NF_HOOK include/linux/netfilter.h:303 [inline] NF_HOOK include/linux/netfilter.h:297 [inline] br_pass_frame_up+0x303/0x430 net/bridge/br_input.c:68 br_handle_frame_finish+0xd1f/0x1de0 net/bridge/br_input.c:216 br_nf_hook_thresh+0x2fb/0x3f0 net/bridge/br_netfilter_hooks.c:1048 br_nf_pre_routing_finish_ipv6+0x695/0xf30 net/bridge/br_netfilter_ipv6.c:148 NF_HOOK include/linux/netfilter.h:303 [inline] br_nf_pre_routing_ipv6+0x41b/0x830 net/bridge/br_netfilter_ipv6.c:178 br_nf_pre_routing+0xda4/0x1520 net/bridge/br_netfilter_hooks.c:508 nf_hook_entry_hookfn include/linux/netfilter.h:143 [inline] nf_hook_bridge_pre net/bridge/br_input.c:272 [inline] br_handle_frame+0xac1/0x1440 net/bridge/br_input.c:417 __netif_receive_skb_core+0xa10/0x3900 net/core/dev.c:5346 __netif_receive_skb_one_core+0xae/0x180 net/core/dev.c:5450 __netif_receive_skb+0x1f/0x1c0 net/core/dev.c:5566 process_backlog+0x101/0x670 net/core/dev.c:5894 __napi_poll+0xb7/0x6f0 net/core/dev.c:6460 napi_poll net/core/dev.c:6527 [inline] net_rx_action+0x8a9/0xcb0 net/core/dev.c:6660 __do_softirq+0x1d4/0x905 kernel/softirq.c:553 do_softirq.part.0+0x87/0xc0 kernel/softirq.c:454 do_softirq kernel/softirq.c:446 [inline] __local_bh_enable_ip+0x106/0x130 kernel/softirq.c:381 neigh_periodic_work+0x623/0xac0 net/core/neighbour.c:1006 process_one_work+0xa34/0x16f0 kernel/workqueue.c:2597 worker_thread+0x67d/0x10c0 kernel/workqueue.c:2748 kthread+0x344/0x440 kernel/kthread.c:389 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308