https://github.com/python/cpython/commit/dc0add3a65fc5de8f0ec8a687dccba435d52d97a
commit: dc0add3a65fc5de8f0ec8a687dccba435d52d97a
branch: main
author: Stan Ulbrych <[email protected]>
committer: vstinner <[email protected]>
date: 2026-10-05T21:09:36+02:00
summary:
gh-158868: Reduce ASLR in the MSan CI job (#158872)
files:
M .github/workflows/reusable-san.yml
diff --git a/.github/workflows/reusable-san.yml
b/.github/workflows/reusable-san.yml
index da6306a50cf7bc..f63c2b89134aca 100644
--- a/.github/workflows/reusable-san.yml
+++ b/.github/workflows/reusable-san.yml
@@ -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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