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UBSAN: shift-out-of-bounds in ./include/net/sch_generic.h:1193:7
shift exponent 129 is too large for 32-bit type 'int'
CPU: 0 PID: 19582 Comm: syz-executor.1 Not tainted 5.10.0-rc7-next-20201210-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 <IRQ>
 __dump_stack lib/dump_stack.c:79 [inline]
 dump_stack+0x107/0x163 lib/dump_stack.c:120
 ubsan_epilogue+0xb/0x5a lib/ubsan.c:148
 __ubsan_handle_shift_out_of_bounds.cold+0xb1/0x181 lib/ubsan.c:395
 qdisc_l2t include/net/sch_generic.h:1193 [inline]
 cbq_update net/sched/sch_cbq.c:562 [inline]
 cbq_dequeue.cold+0x186/0x18b net/sched/sch_cbq.c:809
 dequeue_skb net/sched/sch_generic.c:263 [inline]
 qdisc_restart net/sched/sch_generic.c:366 [inline]
 __qdisc_run+0x1ab/0x1610 net/sched/sch_generic.c:384
 __dev_xmit_skb net/core/dev.c:3795 [inline]
 __dev_queue_xmit+0x1abb/0x2ec0 net/core/dev.c:4101
 neigh_resolve_output net/core/neighbour.c:1491 [inline]
 neigh_resolve_output+0x4d8/0x7e0 net/core/neighbour.c:1471
 neigh_output include/net/neighbour.h:510 [inline]
 ip6_finish_output2+0x68c/0x1710 net/ipv6/ip6_output.c:117
 __ip6_finish_output net/ipv6/ip6_output.c:143 [inline]
 __ip6_finish_output+0x4be/0xb80 net/ipv6/ip6_output.c:128
 ip6_finish_output+0x35/0x200 net/ipv6/ip6_output.c:153
 NF_HOOK_COND include/linux/netfilter.h:290 [inline]
 ip6_output+0x1db/0x520 net/ipv6/ip6_output.c:176
 dst_output include/net/dst.h:441 [inline]
 NF_HOOK include/linux/netfilter.h:301 [inline]
 ndisc_send_skb+0xacc/0x1850 net/ipv6/ndisc.c:508
 ndisc_send_rs+0x12e/0x710 net/ipv6/ndisc.c:702
 addrconf_rs_timer+0x3f2/0x820 net/ipv6/addrconf.c:3874
 call_timer_fn+0x1a5/0x710 kernel/time/timer.c:1417
 expire_timers kernel/time/timer.c:1462 [inline]
 __run_timers.part.0+0x692/0xa80 kernel/time/timer.c:1731
 __run_timers kernel/time/timer.c:1712 [inline]
 run_timer_softirq+0xb3/0x1d0 kernel/time/timer.c:1744
 __do_softirq+0x2b7/0xa76 kernel/softirq.c:343
 asm_call_irq_on_stack+0xf/0x20
 </IRQ>
 __run_on_irqstack arch/x86/include/asm/irq_stack.h:26 [inline]
 run_on_irqstack_cond arch/x86/include/asm/irq_stack.h:77 [inline]
 do_softirq_own_stack+0xaa/0xd0 arch/x86/kernel/irq_64.c:77
 invoke_softirq kernel/softirq.c:226 [inline]
 __irq_exit_rcu kernel/softirq.c:424 [inline]
 irq_exit_rcu+0x194/0x210 kernel/softirq.c:436
 sysvec_apic_timer_interrupt+0x4d/0x100 arch/x86/kernel/apic/apic.c:1096
 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:628
RIP: 0010:__sanitizer_cov_trace_pc+0x37/0x60 kernel/kcov.c:197
Code: 81 e1 00 01 00 00 65 48 8b 14 25 00 f0 01 00 a9 00 01 ff 00 74 0e 85 c9 74 35 8b 82 d4 14 00 00 85 c0 74 2b 8b 82 b0 14 00 00 <83> f8 02 75 20 48 8b 8a b8 14 00 00 8b 92 b4 14 00 00 48 8b 01 48
RSP: 0018:ffffc9000195f758 EFLAGS: 00000246
RAX: 0000000000000000 RBX: ffffc9000195fa60 RCX: 0000000000000000
RDX: ffff888014250000 RSI: ffffffff81a8e0df RDI: 0000000000000003
RBP: 00000000000001fe R08: 00000000000000fe R09: ffffea00018b1933
R10: ffffffff81a8e0d5 R11: 0000000000000000 R12: 00000000000000fd
R13: 00000000000000fe R14: ffffea00018b1900 R15: ffffc9000195fa88
 __tlb_remove_page_size+0x10f/0x420 mm/mmu_gather.c:87
 __tlb_remove_page include/asm-generic/tlb.h:438 [inline]
 zap_pte_range mm/memory.c:1267 [inline]
 zap_pmd_range mm/memory.c:1368 [inline]
 zap_pud_range mm/memory.c:1397 [inline]
 zap_p4d_range mm/memory.c:1418 [inline]
 unmap_page_range+0xf13/0x26e0 mm/memory.c:1439
 unmap_single_vma+0x198/0x300 mm/memory.c:1484
 unmap_vmas+0x168/0x2e0 mm/memory.c:1516
 exit_mmap+0x2b1/0x5a0 mm/mmap.c:3234
 __mmput+0x122/0x470 kernel/fork.c:1084
 mmput+0x53/0x60 kernel/fork.c:1105
 exit_mm kernel/exit.c:500 [inline]
 do_exit+0xa97/0x2a00 kernel/exit.c:810
 do_group_exit+0x125/0x310 kernel/exit.c:920
 get_signal+0x3e9/0x2160 kernel/signal.c:2770
 arch_do_signal_or_restart+0x2a8/0x1eb0 arch/x86/kernel/signal.c:811
 handle_signal_work kernel/entry/common.c:147 [inline]
 exit_to_user_mode_loop kernel/entry/common.c:171 [inline]
 exit_to_user_mode_prepare+0x124/0x200 kernel/entry/common.c:201
 __syscall_exit_to_user_mode_work kernel/entry/common.c:291 [inline]
 syscall_exit_to_user_mode+0x19/0x50 kernel/entry/common.c:302
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x45e159
Code: Unable to access opcode bytes at RIP 0x45e12f.
RSP: 002b:00007ff68ba99cf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: 0000000000000001 RBX: 000000000119bf88 RCX: 000000000045e159
RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 000000000119bf8c
RBP: 000000000119bf80 R08: 000000000000000e R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000119bf8c
R13: 00007fff578b458f R14: 00007ff68ba9a9c0 R15: 000000000119bf8c
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