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UBSAN: shift-out-of-bounds in ./include/net/red.h:310:18
shift exponent 71 is too large for 64-bit type 'long unsigned int'
CPU: 1 PID: 3715 Comm: kworker/1:2 Not tainted 5.10.0-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: ipv6_addrconf addrconf_dad_work
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
 red_calc_qavg_from_idle_time include/net/red.h:310 [inline]
 red_adaptative_algo include/net/red.h:442 [inline]
 red_adaptative_timer.cold+0x1bd/0x26c net/sched/sch_red.c:324
 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+0x2bc/0xa77 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+0x17f/0x200 kernel/softirq.c:420
 irq_exit_rcu+0x5/0x20 kernel/softirq.c:432
 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:__raw_callee_save___kvm_vcpu_is_preempted+0xf/0x20
Code: d7 1e 85 00 8b 14 24 e9 fc fe ff ff cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc 48 8b 04 fd c0 86 0e 8b 80 b8 90 fb 01 00 00 <0f> 95 c0 c3 0f 1f 00 66 2e 0f 1f 84 00 00 00 00 00 c3 0f 1f 44 00
RSP: 0018:ffffc900029bfaa0 EFLAGS: 00000246
RAX: ffff8880b9c00000 RBX: ffff888021989ac0 RCX: 1ffffffff16bd72e
RDX: ffffed100386aa09 RSI: 0000000000000008 RDI: 0000000000000000
RBP: ffffffff8d0d3240 R08: 0000000000000000 R09: ffff88801c355047
R10: ffffed100386aa08 R11: 0000000000000001 R12: ffff88801c355040
R13: 0000000000000000 R14: ffffed100386aa08 R15: dffffc0000000000
 pv_vcpu_is_preempted arch/x86/include/asm/paravirt.h:574 [inline]
 vcpu_is_preempted arch/x86/include/asm/qspinlock.h:62 [inline]
 mutex_spin_on_owner+0x150/0x340 kernel/locking/mutex.c:569
 mutex_optimistic_spin kernel/locking/mutex.c:673 [inline]
 __mutex_lock_common kernel/locking/mutex.c:959 [inline]
 __mutex_lock+0x72e/0x1110 kernel/locking/mutex.c:1103
 addrconf_dad_work+0xa3/0x1280 net/ipv6/addrconf.c:4028
 process_one_work+0x98d/0x1630 kernel/workqueue.c:2275
 worker_thread+0x64c/0x1120 kernel/workqueue.c:2421
 kthread+0x3b1/0x4a0 kernel/kthread.c:292
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:296
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