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UBSAN: shift-out-of-bounds in ./include/net/red.h:312:18
shift exponent 69 is too large for 64-bit type 'long unsigned int'
CPU: 0 PID: 293 Comm: kworker/u4:6 Not tainted 5.11.0-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: events_unbound call_usermodehelper_exec_work
Call Trace:
 <IRQ>
 __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: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: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 kernel/softirq.c:422 [inline]
 irq_exit_rcu+0x134/0x200 kernel/softirq.c:434
 sysvec_apic_timer_interrupt+0x93/0xc0 arch/x86/kernel/apic/apic.c:1100
 </IRQ>
 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:632
RIP: 0010:preempt_count arch/x86/include/asm/preempt.h:27 [inline]
RIP: 0010:check_kcov_mode kernel/kcov.c:163 [inline]
RIP: 0010:__sanitizer_cov_trace_pc+0x0/0x60 kernel/kcov.c:197
Code: e9 22 fd ff ff b9 ff ff ff ff ba 08 00 00 00 4d 8b 03 48 0f bd ca 49 8b 45 00 48 63 c9 e9 64 ff ff ff 0f 1f 84 00 00 00 00 00 <65> 8b 05 89 a1 8e 7e 89 c1 48 8b 34 24 81 e1 00 01 00 00 65 48 8b
RSP: 0018:ffffc90001d0f8f0 EFLAGS: 00000246
RAX: 1ffffffff1613b71 RBX: ffffffff8b09db70 RCX: 0000000000000000
RDX: ffff88801296d340 RSI: 0000000000808100 RDI: ffff888014040000
RBP: dffffc0000000000 R08: 0000000000000000 R09: ffffffff8ff7ca97
R10: ffffffff838879a1 R11: 000000000000014e R12: 0000000000000000
R13: ffff888014040000 R14: 0000000000808100 R15: ffff888014041640
 bpf_lsm_task_alloc+0x5/0x10 include/linux/lsm_hook_defs.h:179
 security_task_alloc+0xa5/0x250 security/security.c:1602
 copy_process+0x1e2b/0x6fd0 kernel/fork.c:2079
 kernel_clone+0xe7/0xab0 kernel/fork.c:2462
 kernel_thread+0xb5/0xf0 kernel/fork.c:2514
 call_usermodehelper_exec_work kernel/umh.c:172 [inline]
 call_usermodehelper_exec_work+0xcc/0x180 kernel/umh.c:158
 process_one_work+0x98d/0x1600 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:294
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