================================================================================ UBSAN: shift-out-of-bounds in ./include/net/red.h:312:18 shift exponent 71 is too large for 64-bit type 'long unsigned int' CPU: 0 PID: 9877 Comm: syz-executor789 Not tainted 5.11.0-rc5-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __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:312 [inline] red_adaptative_algo include/net/red.h:444 [inline] red_adaptative_timer.cold+0x1bd/0x26c net/sched/sch_red.c:324 call_timer_fn+0x1a5/0x6b0 kernel/time/timer.c:1417 expire_timers kernel/time/timer.c:1462 [inline] __run_timers.part.0+0x67c/0xa50 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/0xa29 kernel/softirq.c:343 asm_call_irq_on_stack+0xf/0x20 __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:420 [inline] irq_exit_rcu+0x134/0x200 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_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:161 [inline] RIP: 0010:_raw_spin_unlock_irqrestore+0x25/0x50 kernel/locking/spinlock.c:191 Code: f8 5d c3 66 90 55 48 89 fd 48 83 c7 18 53 48 89 f3 48 8b 74 24 10 e8 0a 98 5c f8 48 89 ef e8 b2 4c 5d f8 f6 c7 02 75 1a 53 9d 01 00 00 00 e8 d1 53 51 f8 65 8b 05 ba cb 05 77 85 c0 74 0a 5b RSP: 0018:ffffc9000ab47a48 EFLAGS: 00000202 RAX: 000000000000007d RBX: 0000000000000202 RCX: 1ffffffff1a06941 RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000000 RBP: ffff88801a1008a8 R08: 0000000000000001 R09: 0000000000000001 R10: ffffffff81789408 R11: 0000000000000001 R12: ffff8880b9f34c40 R13: 0000000000000202 R14: ffff88801a1008a8 R15: ffff8880b9f34c58 try_to_wake_up+0x62d/0x14a0 kernel/sched/core.c:3470 wake_up_process kernel/sched/core.c:3538 [inline] wake_up_q+0x96/0x100 kernel/sched/core.c:589 futex_wake+0x3e9/0x490 kernel/futex.c:1623 do_futex+0x322/0x1960 kernel/futex.c:3768 __do_sys_futex+0x2a2/0x470 kernel/futex.c:3826 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x44c8e9 Code: e8 1c e6 ff ff 48 83 c4 18 c3 0f 1f 80 00 00 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 0b 00 fc ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007fc9a5a39cf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: ffffffffffffffda RBX: 00000000006e9a08 RCX: 000000000044c8e9 RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00000000006e9a0c RBP: 00000000006e9a00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006e9a0c R13: 00007fffd2bd855f R14: 00007fc9a5a3a9c0 R15: 20c49ba5e353f7cf ================================================================================