================================================================================ UBSAN: Undefined behaviour in ./include/net/red.h:272:18 shift exponent 223 is too large for 64-bit type 'long unsigned int' CPU: 1 PID: 6528 Comm: syz-executor.2 Not tainted 4.19.149-syzkaller #0 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+0x22c/0x33e lib/dump_stack.c:118 ubsan_epilogue+0xe/0x3a lib/ubsan.c:161 __ubsan_handle_shift_out_of_bounds.cold+0x1c4/0x250 lib/ubsan.c:422 red_calc_qavg_from_idle_time include/net/red.h:272 [inline] red_adaptative_algo include/net/red.h:404 [inline] red_adaptative_timer+0x7ed/0x870 net/sched/sch_red.c:266 call_timer_fn+0x177/0x760 kernel/time/timer.c:1338 expire_timers+0x243/0x500 kernel/time/timer.c:1375 __run_timers kernel/time/timer.c:1703 [inline] run_timer_softirq+0x259/0x730 kernel/time/timer.c:1716 __do_softirq+0x27d/0xad2 kernel/softirq.c:292 invoke_softirq kernel/softirq.c:372 [inline] irq_exit+0x22d/0x270 kernel/softirq.c:412 exiting_irq arch/x86/include/asm/apic.h:544 [inline] smp_apic_timer_interrupt+0x15f/0x5d0 arch/x86/kernel/apic/apic.c:1094 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:894 RIP: 0010:__raw_spin_unlock_irq include/linux/spinlock_api_smp.h:169 [inline] RIP: 0010:_raw_spin_unlock_irq+0x50/0x90 kernel/locking/spinlock.c:192 Code: c0 f8 89 63 89 48 ba 00 00 00 00 00 fc ff df 48 c1 e8 03 80 3c 10 00 75 3d 48 83 3d 91 7d b2 01 00 74 25 fb 66 0f 1f 44 00 00 01 00 00 00 e8 76 f8 9b f9 65 8b 05 4f e1 50 78 85 c0 74 02 5d RSP: 0018:ffff8880874afb40 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 RAX: 1ffffffff12c713f RBX: 0000000076d320a8 RCX: 0000000000000000 RDX: dffffc0000000000 RSI: 0000000000000001 RDI: ffff88808d324dc4 RBP: ffff8880ae32c2c0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: ffff8880ae32c2c0 R13: ffff88804d2f8300 R14: ffff88809f8aa880 R15: 0000000000000000 finish_lock_switch kernel/sched/core.c:2578 [inline] finish_task_switch+0x174/0x8b0 kernel/sched/core.c:2678 context_switch kernel/sched/core.c:2831 [inline] __schedule+0x8ed/0x22e0 kernel/sched/core.c:3517 schedule+0x8d/0x1b0 kernel/sched/core.c:3561 freezable_schedule include/linux/freezer.h:172 [inline] do_nanosleep+0x264/0x6c0 kernel/time/hrtimer.c:1691 hrtimer_nanosleep+0x24d/0x500 kernel/time/hrtimer.c:1745 __do_sys_nanosleep kernel/time/hrtimer.c:1779 [inline] __se_sys_nanosleep kernel/time/hrtimer.c:1766 [inline] __x64_sys_nanosleep+0x19d/0x220 kernel/time/hrtimer.c:1766 do_syscall_64+0xf9/0x670 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x45c261 Code: 75 14 b8 23 00 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 34 cf fb ff c3 48 83 ec 08 e8 ea 46 00 00 48 89 04 24 b8 23 00 00 00 0f 05 <48> 8b 3c 24 48 89 c2 e8 33 47 00 00 48 89 d0 48 83 c4 08 48 3d 01 RSP: 002b:00007ffe9797aaf0 EFLAGS: 00000293 ORIG_RAX: 0000000000000023 RAX: ffffffffffffffda RBX: 00000000001e3eb8 RCX: 000000000045c261 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00007ffe9797ab00 RBP: 0000000000001e74 R08: 0000000000000000 R09: 0000000002fab940 R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000006 R13: 00007ffe9797ab50 R14: 00000000001e3e56 R15: 00007ffe9797ab60 ================================================================================ overlayfs: filesystem on './file0' not supported as upperdir