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UBSAN: shift-out-of-bounds in kernel/sched/fair.c:7712:14
shift exponent 129 is too large for 64-bit type 'long unsigned int'
CPU: 3 PID: 11307 Comm: syz-executor.0 Not tainted 5.12.0-rc8-syzkaller #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.14.0-2 04/01/2014
Call Trace:
 <IRQ>
 __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: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:compound_head include/linux/page-flags.h:184 [inline]
RIP: 0010:PageAnon include/linux/page-flags.h:483 [inline]
RIP: 0010:zap_pte_range mm/memory.c:1260 [inline]
RIP: 0010:zap_pmd_range mm/memory.c:1374 [inline]
RIP: 0010:zap_pud_range mm/memory.c:1403 [inline]
RIP: 0010:zap_p4d_range mm/memory.c:1424 [inline]
RIP: 0010:unmap_page_range+0xb87/0x2650 mm/memory.c:1445
Code: e8 03 42 0f b6 04 30 84 c0 74 08 3c 01 0f 8e c7 17 00 00 48 8b 44 24 08 80 48 20 08 48 85 ed 0f 84 11 fe ff ff e8 e9 f2 cc ff <48> 8d 45 08 48 89 44 24 18 48 c1 e8 03 42 80 3c 30 00 0f 85 a5 17
RSP: 0018:ffffc90006b57768 EFLAGS: 00000293
RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000000000
RDX: ffff888013748000 RSI: ffffffff81a70267 RDI: ffffc90006b57a48
RBP: ffffea0001901f40 R08: 000000000006407d R09: 0000000000000001
R10: ffffffff81a701a7 R11: 0000000000000000 R12: ffffc90006b57a50
R13: ffff888072ee1d90 R14: dffffc0000000000 R15: 00000000f77b3000
 unmap_single_vma+0x198/0x300 mm/memory.c:1490
 unmap_vmas+0x16d/0x2f0 mm/memory.c:1522
 exit_mmap+0x2a8/0x590 mm/mmap.c:3218
 __mmput+0x122/0x470 kernel/fork.c:1090
 mmput+0x58/0x60 kernel/fork.c:1111
 exit_mm kernel/exit.c:501 [inline]
 do_exit+0xb0a/0x2a60 kernel/exit.c:812
 do_group_exit+0x125/0x310 kernel/exit.c:922
 get_signal+0x47f/0x2150 kernel/signal.c:2781
 arch_do_signal_or_restart+0x2a8/0x1eb0 arch/x86/kernel/signal.c:789
 handle_signal_work kernel/entry/common.c:147 [inline]
 exit_to_user_mode_loop kernel/entry/common.c:171 [inline]
 exit_to_user_mode_prepare+0x148/0x250 kernel/entry/common.c:208
 __syscall_exit_to_user_mode_work kernel/entry/common.c:290 [inline]
 syscall_exit_to_user_mode+0x19/0x60 kernel/entry/common.c:301
 __do_fast_syscall_32+0x62/0x90 arch/x86/entry/common.c:143
 do_fast_syscall_32+0x2f/0x70 arch/x86/entry/common.c:165
 entry_SYSENTER_compat_after_hwframe+0x4d/0x5c
RIP: 0023:0xf7fb6549
Code: Unable to access opcode bytes at RIP 0xf7fb651f.
RSP: 002b:00000000f55b05fc EFLAGS: 00000296 ORIG_RAX: 0000000000000150
RAX: 0000000000000003 RBX: 0000000020000080 RCX: 0000000000000000
RDX: 00000000ffffffff RSI: 00000000ffffffff RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
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