elfutils: use more secure ptrace scope configuration by default

[christopherco]

Merge Checklist

All boxes should be checked before merging the PR (just tick any boxes which don't apply to this PR)

• [x] The toolchain has been rebuilt successfully (or no changes were made to it)
• [x] The toolchain/worker package manifests are up-to-date
• [x] Any updated packages successfully build (or no packages were changed)
• [x] Packages depending on static components modified in this PR (Golang, *-static subpackages, etc.) have had their Release tag incremented.
• [x] Package tests (%check section) have been verified with RUN_CHECK=y for existing SPEC files, or added to new SPEC files
• [x] All package sources are available
• [x] cgmanifest files are up-to-date and sorted (./cgmanifest.json, ./toolkit/scripts/toolchain/cgmanifest.json, .github/workflows/cgmanifest.json)
• [x] LICENSE-MAP files are up-to-date (./SPECS/LICENSES-AND-NOTICES/data/licenses.json, ./SPECS/LICENSES-AND-NOTICES/LICENSES-MAP.md, ./SPECS/LICENSES-AND-NOTICES/LICENSE-EXCEPTIONS.PHOTON)
• [x] All source files have up-to-date hashes in the *.signatures.json files
• [x] sudo make go-tidy-all and sudo make go-test-coverage pass
• [x] Documentation has been updated to match any changes to the build system
• [x] If you are adding/removing a .spec file that has multiple-versions supported, please add @microsoft/cbl-mariner-multi-package-reviewers team as reviewer (Eg. golang has 2 versions 1.18, 1.21+)
• [x] Ready to merge

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Summary

By default, set the yama ptrace_scope configuration to "1" meaning to only allow restricted ptrace attach to child processes. This is the more secure default setting for the system.

Users can opt to change this setting by changing the sysctl option to "0" if they need unrestricted ptrace attach properties for things like debugging.

Signed-off-by: Chris Co chrco@microsoft.com

Does this affect the toolchain?

YES

Associated issues

• https://microsoft.visualstudio.com/OS/_workitems/edit/51548629

Test Methodology

• Pipeline build id: 592753

[christopherco]

Approved, but can you please check on the toolchain build before merging? https://dev.azure.com/mariner-org/mariner/_build/results?buildId=593224&view=results

toolchain builds passed:

• https://dev.azure.com/mariner-org/mariner/_build/results?buildId=593232&view=results
• https://dev.azure.com/mariner-org/mariner/_build/results?buildId=593233&view=results