[PATCH] D84361: scudo: Interleave odd and even tags for adjacent blocks.

[Peter Collingbourne via Phabricator via llvm-commits]

pcc created this revision.
pcc added reviewers: eugenis, hctim, cryptoad.
Herald added a project: Sanitizers.
Herald added a subscriber: Sanitizers.

This guarantees that we will detect a buffer overflow or underflow
that overwrites an adjacent block. This spatial guarantee is similar
to the temporal guarantee that we provide for immediate use-after-free.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D84361

Files:
  compiler-rt/lib/scudo/standalone/combined.h
  compiler-rt/lib/scudo/standalone/memtag.h
  compiler-rt/lib/scudo/standalone/tests/combined_test.cpp

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