================================================================================ UBSAN: shift-out-of-bounds in ./include/net/red.h:312:18 shift exponent 109 is too large for 64-bit type 'long unsigned int' CPU: 1 PID: 8417 Comm: syz-executor.1 Not tainted 5.12.0-rc1-next-20210305-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+0x141/0x1d7 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:327 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:1431 expire_timers kernel/time/timer.c:1476 [inline] __run_timers.part.0+0x67c/0xa50 kernel/time/timer.c:1745 __run_timers kernel/time/timer.c:1726 [inline] run_timer_softirq+0xb3/0x1d0 kernel/time/timer.c:1758 __do_softirq+0x29b/0x9f6 kernel/softirq.c:345 invoke_softirq kernel/softirq.c:221 [inline] __irq_exit_rcu+0x136/0x200 kernel/softirq.c:422 irq_exit_rcu+0x5/0x20 kernel/softirq.c:434 sysvec_apic_timer_interrupt+0x45/0xc0 arch/x86/kernel/apic/apic.c:1100 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:632 RIP: 0033:0x464407 Code: 89 7c 24 10 48 89 4c 24 18 e8 d5 44 02 00 4c 8b 54 24 18 8b 54 24 14 41 89 c0 48 8b 74 24 08 8b 7c 24 10 b8 3d 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 89 44 24 10 e8 05 45 02 00 8b 44 RSP: 002b:00007ffceba08870 EFLAGS: 00000293 RAX: 0000000000000000 RBX: 000000000000004f RCX: 0000000000464407 RDX: 0000000040000001 RSI: 00007ffceba0890c RDI: 00000000ffffffff RBP: 00007ffceba0890c R08: 0000000000000000 R09: 00007ffceba1f090 R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000032 R13: 0000000000024e1a R14: 0000000000000004 R15: 00007ffceba08970 ================================================================================