------------[ cut here ]------------ cbs: dequeue() called with unknown port rate. WARNING: CPU: 0 PID: 9361 at net/sched/sch_cbs.c:185 cbs_dequeue_soft+0x37e/0x4b0 net/sched/sch_cbs.c:185 Kernel panic - not syncing: panic_on_warn set ... CPU: 0 PID: 9361 Comm: syz-executor.0 Not tainted 5.3.0-rc6-next-20190830 #75 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x172/0x1f0 lib/dump_stack.c:113 panic+0x2dc/0x755 kernel/panic.c:220 __warn.cold+0x2f/0x3c kernel/panic.c:581 report_bug+0x289/0x300 lib/bug.c:195 fixup_bug arch/x86/kernel/traps.c:179 [inline] fixup_bug arch/x86/kernel/traps.c:174 [inline] do_error_trap+0x11b/0x200 arch/x86/kernel/traps.c:272 do_invalid_op+0x37/0x50 arch/x86/kernel/traps.c:291 invalid_op+0x23/0x30 arch/x86/entry/entry_64.S:1028 RIP: 0010:cbs_dequeue_soft+0x37e/0x4b0 net/sched/sch_cbs.c:185 Code: 1d 2c b3 f5 03 31 ff 89 de e8 fe 6d a6 fb 84 db 75 1a e8 b5 6c a6 fb 48 c7 c7 80 7d 4a 88 c6 05 0c b3 f5 03 01 e8 0a bb 77 fb <0f> 0b 45 31 e4 eb b1 49 bc ff ff ff ff ff ff ff 7f 48 89 55 d0 e8 RSP: 0018:ffff8880ae809508 EFLAGS: 00010286 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: 0000000000000100 RSI: ffffffff815bf786 RDI: ffffed1015d01293 RBP: ffff8880ae809550 R08: ffff8880619824c0 R09: fffffbfff14ed341 R10: fffffbfff14ed340 R11: ffffffff8a769a07 R12: ffff88808f0dc000 R13: ffff8880a5474ac8 R14: 000000323cfb76e9 R15: ffffffffffffffff cbs_dequeue+0x34/0x40 net/sched/sch_cbs.c:237 dequeue_skb net/sched/sch_generic.c:258 [inline] qdisc_restart net/sched/sch_generic.c:361 [inline] __qdisc_run+0x1e7/0x19d0 net/sched/sch_generic.c:379 __dev_xmit_skb net/core/dev.c:3533 [inline] __dev_queue_xmit+0x16f1/0x37c0 net/core/dev.c:3838 dev_queue_xmit+0x18/0x20 net/core/dev.c:3902 neigh_hh_output include/net/neighbour.h:500 [inline] neigh_output include/net/neighbour.h:509 [inline] ip6_finish_output2+0xf58/0x2550 net/ipv6/ip6_output.c:116 __ip6_finish_output+0x444/0xaa0 net/ipv6/ip6_output.c:142 ip6_finish_output+0x38/0x1f0 net/ipv6/ip6_output.c:152 NF_HOOK_COND include/linux/netfilter.h:294 [inline] ip6_output+0x235/0x7f0 net/ipv6/ip6_output.c:175 dst_output include/net/dst.h:436 [inline] NF_HOOK include/linux/netfilter.h:305 [inline] ndisc_send_skb+0xf29/0x14a0 net/ipv6/ndisc.c:505 ndisc_send_rs+0x134/0x6d0 net/ipv6/ndisc.c:699 addrconf_rs_timer+0x30f/0x680 net/ipv6/addrconf.c:3879 call_timer_fn+0x1ac/0x780 kernel/time/timer.c:1404 expire_timers kernel/time/timer.c:1449 [inline] __run_timers kernel/time/timer.c:1771 [inline] __run_timers kernel/time/timer.c:1738 [inline] run_timer_softirq+0x6c0/0x17f0 kernel/time/timer.c:1784 __do_softirq+0x262/0x98c kernel/softirq.c:292 invoke_softirq kernel/softirq.c:373 [inline] irq_exit+0x19b/0x1e0 kernel/softirq.c:413 exiting_irq arch/x86/include/asm/apic.h:536 [inline] smp_apic_timer_interrupt+0x1a3/0x610 arch/x86/kernel/apic/apic.c:1133 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:830 RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:756 [inline] RIP: 0010:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:160 [inline] RIP: 0010:_raw_spin_unlock_irqrestore+0x95/0xe0 kernel/locking/spinlock.c:191 Code: 48 c7 c0 a0 ed f2 88 48 ba 00 00 00 00 00 fc ff df 48 c1 e8 03 80 3c 10 00 75 39 48 83 3d 52 5e af 01 00 74 24 48 89 df 57 9d <0f> 1f 44 00 00 bf 01 00 00 00 e8 1c d2 0a fa 65 8b 05 9d 6e be 78 RSP: 0018:ffff888061d473f8 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13 RAX: 1ffffffff11e5db4 RBX: 0000000000000282 RCX: 0000000000000000 RDX: dffffc0000000000 RSI: 0000000000000006 RDI: 0000000000000282 RBP: ffff888061d47408 R08: ffff8880619824c0 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: ffffffff8aca4828 R13: ffffffff8aca4828 R14: ffff888059837000 R15: 0000000000000000 __debug_check_no_obj_freed lib/debugobjects.c:973 [inline] debug_check_no_obj_freed+0x20a/0x43f lib/debugobjects.c:994 free_pages_prepare mm/page_alloc.c:1175 [inline] __free_pages_ok+0x26c/0xf40 mm/page_alloc.c:1421 free_compound_page+0x97/0xd0 mm/page_alloc.c:674 free_transhuge_page+0x372/0x4b0 mm/huge_memory.c:2861 __put_compound_page+0x90/0xd0 mm/swap.c:97 release_pages+0x5e5/0x1a50 mm/swap.c:810 free_pages_and_swap_cache+0x2c3/0x3f0 mm/swap_state.c:296 tlb_batch_pages_flush mm/mmu_gather.c:49 [inline] tlb_flush_mmu_free mm/mmu_gather.c:184 [inline] tlb_flush_mmu+0x89/0x630 mm/mmu_gather.c:191 zap_pte_range mm/memory.c:1134 [inline] zap_pmd_range mm/memory.c:1172 [inline] zap_pud_range mm/memory.c:1201 [inline] zap_p4d_range mm/memory.c:1222 [inline] unmap_page_range+0x17f8/0x2380 mm/memory.c:1243 unmap_single_vma+0x19d/0x300 mm/memory.c:1288 unmap_vmas+0x189/0x300 mm/memory.c:1320 exit_mmap+0x2ba/0x530 mm/mmap.c:3176 __mmput kernel/fork.c:1082 [inline] mmput+0x179/0x4d0 kernel/fork.c:1103 exit_mm kernel/exit.c:547 [inline] do_exit+0x823/0x2e60 kernel/exit.c:866 do_group_exit+0x135/0x360 kernel/exit.c:983 get_signal+0x47c/0x2500 kernel/signal.c:2734 do_signal+0x87/0x1700 arch/x86/kernel/signal.c:815 exit_to_usermode_loop+0x286/0x380 arch/x86/entry/common.c:159 prepare_exit_to_usermode arch/x86/entry/common.c:194 [inline] syscall_return_slowpath arch/x86/entry/common.c:274 [inline] do_syscall_64+0x65f/0x760 arch/x86/entry/common.c:300 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x4598e9 Code: Bad RIP value. RSP: 002b:00007fea7752bcf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: fffffffffffffe00 RBX: 000000000075c078 RCX: 00000000004598e9 RDX: 0000000000000000 RSI: 0000000000000080 RDI: 000000000075c078 RBP: 000000000075c070 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000075c07c R13: 00007fff9b41229f R14: 00007fea7752c9c0 R15: 000000000075c07c Kernel Offset: disabled Rebooting in 86400 seconds..