================================================================================ 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: 0 PID: 12187 Comm: syz-executor.1 Not tainted 5.12.0-rc1-next-20210304-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+0xfa/0x151 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+0x93/0xc0 arch/x86/kernel/apic/apic.c:1100 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:632 RIP: 0010:__raw_spin_unlock_irq include/linux/spinlock_api_smp.h:169 [inline] RIP: 0010:_raw_spin_unlock_irq+0x25/0x40 kernel/locking/spinlock.c:199 Code: 0f 1f 44 00 00 55 48 8b 74 24 08 48 89 fd 48 83 c7 18 e8 5e a0 51 f8 48 89 ef e8 d6 55 52 f8 e8 a1 f9 71 f8 fb bf 01 00 00 00 96 4b 46 f8 65 8b 05 0f 75 fa 76 85 c0 74 02 5d c3 e8 6b ca f8 RSP: 0018:ffffc90009da7aa0 EFLAGS: 00000202 RAX: 000000000000011f RBX: ffff88805abb9068 RCX: 1ffffffff1f5a40a RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000001 RBP: ffffffff8bfb5240 R08: 0000000000000001 R09: ffffffff8faca877 R10: 0000000000000001 R11: 0000000000000000 R12: 0000000000000008 R13: ffff88805abb9000 R14: ffff8880125c3800 R15: 0000000000002f9c spin_unlock_irq include/linux/spinlock.h:404 [inline] cgroup_css_set_fork kernel/cgroup/cgroup.c:5913 [inline] cgroup_can_fork+0x264/0xee0 kernel/cgroup/cgroup.c:6022 copy_process+0x333d/0x6fd0 kernel/fork.c:2197 kernel_clone+0xe7/0xab0 kernel/fork.c:2462 __do_sys_clone+0xc8/0x110 kernel/fork.c:2579 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x465f69 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fd9314ec188 EFLAGS: 00000246 ORIG_RAX: 0000000000000038 RAX: ffffffffffffffda RBX: 000000000056bf60 RCX: 0000000000465f69 RDX: 9999999999999999 RSI: 0000000000000000 RDI: 0000020002004ffc RBP: 00000000004bfa67 R08: ffffffffffffffff R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf60 R13: 00007ffdc3bd262f R14: 00007fd9314ec300 R15: 0000000000022000 ================================================================================