fix(linux-sandbox): isolate Linux sandbox synthetic mount registry per user for shared codex use case#21234
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viyatb-oai merged 1 commit intomainfrom May 5, 2026
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Reviewed the small Linux sandbox diff. It keeps registry coordination per effective UID and has focused CI coverage.
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Summary
/tmpWhy
Issue #21192 reports that the Linux sandbox currently uses one global temp path at
/tmp/codex-bwrap-synthetic-mount-targets. If another user creates that directory first, later users can fail to open the shared lock file withPermission denied.Validation
just fmtcargo test -p codex-linux-sandboxcargo clippy -p codex-linux-sandbox --all-targetsFixes #21192