RFR: 8267130: Memory Overflow in Disassembler::load_library

[Wang Huang]

* reproduce: 
  put your libjvm.so in a long enough path, such like

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Commit messages:
 - 8267130: Memory Overflow in Disassembler::load_library

Changes: https://git.openjdk.java.net/jdk/pull/4020/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=4020&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8267130
  Stats: 29 lines in 1 file changed: 17 ins; 5 del; 7 mod
  Patch: https://git.openjdk.java.net/jdk/pull/4020.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/4020/head:pull/4020

PR: https://git.openjdk.java.net/jdk/pull/4020