[jdk17u-dev] RFR: 8319818: Address GCC 13.2.0 warnings (stringop-overflow and dangling-pointer)

[Goetz Lindenmaier]

I backport this for parity with 17.0.14-oracle.

I ran the build on linux x86_64 with gcc 13.2.0 which passed fine (release and slowdebug).

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Commit messages:
 - Backport c0507af5a4d867940b3aee1ac0fc8188b5536825

Changes: https://git.openjdk.org/jdk17u-dev/pull/3246/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk17u-dev&pr=3246&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8319818
  Stats: 32 lines in 3 files changed: 19 ins; 10 del; 3 mod
  Patch: https://git.openjdk.org/jdk17u-dev/pull/3246.diff
  Fetch: git fetch https://git.openjdk.org/jdk17u-dev.git pull/3246/head:pull/3246

PR: https://git.openjdk.org/jdk17u-dev/pull/3246