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gh-158868: Reduce ASLR in the MSan CI job #158872

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Merged
vstinner merged 1 commit into from
Oct 5, 2026
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gh-158868: Reduce ASLR in the MSan CI job #158872

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2 changes: 2 additions & 0 deletions .github/workflows/reusable-san.yml
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Original file line number Diff line number Diff line change
Expand Up @@ -72,6 +72,8 @@ jobs:
- name: MSan option setup
if: inputs.sanitizer == 'MSan'
run: |
sudo sysctl -w vm.mmap_rnd_bits=28 # Reduce ASLR to avoid MSan re-executing
echo "MSAN_OPTIONS=${SAN_LOG_OPTION} allocator_may_return_null=1 handle_segv=0" >> "$GITHUB_ENV"
# MSan reports false positives for memory initialized by libraries
# that are not built with MSan, so disable modules that use them.
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