================================================================================ UBSAN: shift-out-of-bounds in kernel/sched/fair.c:7712:14 shift exponent 112 is too large for 64-bit type 'long unsigned int' CPU: 1 PID: 4819 Comm: systemd-journal Not tainted 5.12.0-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 detach_tasks kernel/sched/fair.c:7712 [inline] load_balance.cold+0x1d/0x2e kernel/sched/fair.c:9641 rebalance_domains+0x5cc/0xdb0 kernel/sched/fair.c:10029 __do_softirq+0x29b/0x9f6 kernel/softirq.c:559 invoke_softirq kernel/softirq.c:433 [inline] __irq_exit_rcu kernel/softirq.c:637 [inline] irq_exit_rcu+0x134/0x200 kernel/softirq.c:649 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:__syscall_enter_from_user_work kernel/entry/common.c:86 [inline] RIP: 0010:syscall_enter_from_user_mode+0x31/0x70 kernel/entry/common.c:107 Code: 89 fd 48 8b 7c 24 10 e8 fd f7 ff ff e9 2a 00 00 00 e9 2e 00 00 00 e8 4e 59 74 f8 e8 89 57 74 f8 fb 65 48 8b 04 25 00 f0 01 00 <48> 8b 70 08 40 f6 c6 3f 75 1c 4c 89 e0 5d 41 5c c3 e9 1b 00 00 00 RSP: 0018:ffffc9000163ff28 EFLAGS: 00000202 RAX: ffff8880267554c0 RBX: 0000000000000000 RCX: 1ffffffff1b8bd69 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffffc9000163ff58 R08: 0000000000000001 R09: 0000000000000001 R10: ffffffff8179d818 R11: 0000000000000000 R12: 0000000000000027 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 do_syscall_64+0x1c/0xb0 arch/x86/entry/common.c:42 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7f5e32bc8f17 Code: ff ff ff 48 8b 4d a0 0f b7 51 fe 48 8b 4d a8 66 89 54 08 fe e9 1a ff ff ff 66 2e 0f 1f 84 00 00 00 00 00 b8 27 00 00 00 0f 05 0f 1f 84 00 00 00 00 00 b8 6e 00 00 00 0f 05 c3 0f 1f 84 00 00 RSP: 002b:00007ffeb4c44bd8 EFLAGS: 00000202 ORIG_RAX: 0000000000000027 RAX: ffffffffffffffda RBX: 000055680c7281e0 RCX: 00007f5e32bc8f17 RDX: 0000000000000000 RSI: 00007ffeb4c44d20 RDI: 000055680c7281e0 RBP: 00007ffeb4c44d20 R08: 559a8f3acc3d8ad5 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000202 R12: 00000000000012d3 R13: 00007ffeb4c44cc8 R14: 00007ffeb4c44d20 R15: 00007ffeb4c452e8 ================================================================================