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d11399
2020 Jun 08
2
Mitigating straight-line speculation vulnerability CVE-2020-13844
...lt;N>
speculation barrier
Therefore, the BLR instruction gets split into 2; one BL and one BR. This
transformation results in not inserting a speculation barrier on the
architectural execution path.
Please find patches for these mitigations on the below reviews:
1. https://reviews.llvm.org/D81399: [AArch64] Fix branch, terminator, etc properties for BRA* instructions.
2. https://reviews.llvm.org/D81400: [AArch64] Introduce AArch64SLSHardeningPass, which implements the hardening of RET and BR instructions.
3. https://reviews.llvm.org/D81401: [NFC] Refactor ThunkInserter to make it available...