fix allocator core dump

[zhangting2020]

PR Category

Performance Optimization

PR Types

Bug fixes

Description

devPR:#77196

[paddle-bot]

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[codecov-commenter]

Codecov Report

❌ Patch coverage is 90.90909% with 1 line in your changes missing coverage. Please review.
⚠️ Please upload report for BASE (release/3.3@cbf3469). Learn more about missing BASE report.

Files with missing lines	Patch %	Lines
...n/virtual_memory_auto_growth_best_fit_allocator.cc	90.90%	1 Missing ⚠️

Additional details and impacted files

@@              Coverage Diff               @@
##             release/3.3   #77200   +/-   ##
==============================================
  Coverage               ?   90.90%           
==============================================
  Files                  ?        1           
  Lines                  ?       11           
  Branches               ?        0           
==============================================
  Hits                   ?       10           
  Misses                 ?        1           
  Partials               ?        0           

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[ForFishes]

LGTM