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| author | Kostya Kortchinsky <kostyak@google.com> | 2017-08-28 15:20:02 +0000 |
|---|---|---|
| committer | Kostya Kortchinsky <kostyak@google.com> | 2017-08-28 15:20:02 +0000 |
| commit | 476f21d87ec1d512a0143dd37a62d08ab71dc5b5 (patch) | |
| tree | aa21620ac704125fc21f8cabe2d2195e68ba5c17 /llvm/tools/llvm-rc/ResourceScriptParser.cpp | |
| parent | 867e36de383e843b3908b18a964b71cf768e5b22 (diff) | |
| download | llvm-476f21d87ec1d512a0143dd37a62d08ab71dc5b5.zip llvm-476f21d87ec1d512a0143dd37a62d08ab71dc5b5.tar.gz llvm-476f21d87ec1d512a0143dd37a62d08ab71dc5b5.tar.bz2 | |
[sanitizer] Re-introduce kUseSeparateSizeClassForBatch for the 32-bit Primary
Summary:
Currently `TransferBatch` are located within the same memory regions as
"regular" chunks. This is not ideal for security: they make for an interesting
target to overwrite, and are not protected by the frontend (namely, Scudo).
To solve this, we re-introduce `kUseSeparateSizeClassForBatch` for the 32-bit
Primary allowing for `TransferBatch` to end up in their own memory region.
Currently only Scudo would use this new feature, the default behavior remains
unchanged. The separate `kBatchClassID` was used for a brief period of time
previously but removed when the 64-bit ended up using the "free array".
Reviewers: alekseyshl, kcc, eugenis
Reviewed By: alekseyshl
Subscribers: llvm-commits, kubamracek
Differential Revision: https://reviews.llvm.org/D37082
llvm-svn: 311891
Diffstat (limited to 'llvm/tools/llvm-rc/ResourceScriptParser.cpp')
0 files changed, 0 insertions, 0 deletions