RFR: 8336833: Endless loop in Javap ClassWriter

Adam Sotona asotona at openjdk.org
Fri Jul 19 15:37:00 UTC 2024


Artificially corrupted class with overflowing max - min values of `tableswitch` instruction cause infinite loop in `jdk.internal.classfile.impl.CodeImpl::inflateJumpTargets`

This patch fixes the overflow and adds relevant test.

Please review.

Thank you,
Adam

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Commit messages:
 - 8336833: Endless loop in Javap ClassWriter

Changes: https://git.openjdk.org/jdk/pull/20258/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=20258&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8336833
  Stats: 24 lines in 2 files changed: 22 ins; 0 del; 2 mod
  Patch: https://git.openjdk.org/jdk/pull/20258.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/20258/head:pull/20258

PR: https://git.openjdk.org/jdk/pull/20258


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