Fix Open Codex Linux release builds.

Reuse the musl rusty_v8 artifact override setup so fork Linux builds do not try to download missing denoland rusty_v8 archives.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

Author: sa-buc

.github/workflows/open-codex-release.yml

@@ -120,6 +120,47 @@ jobs:
         env:
           TARGET: ${{ matrix.target }}
         run: bash "${GITHUB_WORKSPACE}/.github/scripts/install-musl-build-tools.sh"
+      - name: Configure rustc UBSan wrapper
+        shell: bash
+        run: |
+          set -euo pipefail
+          ubsan=""
+          if command -v ldconfig >/dev/null 2>&1; then
+            ubsan="$(ldconfig -p | grep -m1 'libubsan\.so\.1' | sed -E 's/.*=> (.*)$/\1/')"
+          fi
+          wrapper_root="${RUNNER_TEMP:-/tmp}"
+          wrapper="${wrapper_root}/rustc-ubsan-wrapper"
+          cat > "${wrapper}" <<EOF
+          #!/usr/bin/env bash
+          set -euo pipefail
+          if [[ -n "${ubsan}" ]]; then
+            export LD_PRELOAD="${ubsan}\${LD_PRELOAD:+:\${LD_PRELOAD}}"
+          fi
+          exec "\$1" "\${@:2}"
+          EOF
+          chmod +x "${wrapper}"
+          echo "RUSTC_WRAPPER=${wrapper}" >> "$GITHUB_ENV"
+          echo "RUSTC_WORKSPACE_WRAPPER=" >> "$GITHUB_ENV"
+      - name: Clear sanitizer flags
+        shell: bash
+        run: |
+          set -euo pipefail
+          echo "AWS_LC_SYS_NO_JITTER_ENTROPY=1" >> "$GITHUB_ENV"
+          target_no_jitter="AWS_LC_SYS_NO_JITTER_ENTROPY_${{ matrix.target }}"
+          target_no_jitter="${target_no_jitter//-/_}"
+          echo "${target_no_jitter}=1" >> "$GITHUB_ENV"
+          echo "RUSTFLAGS=" >> "$GITHUB_ENV"
+          echo "CARGO_ENCODED_RUSTFLAGS=" >> "$GITHUB_ENV"
+          echo "RUSTDOCFLAGS=" >> "$GITHUB_ENV"
+          echo "CARGO_BUILD_RUSTFLAGS=" >> "$GITHUB_ENV"
+          echo "CARGO_TARGET_X86_64_UNKNOWN_LINUX_GNU_RUSTFLAGS=" >> "$GITHUB_ENV"
+          echo "CARGO_TARGET_AARCH64_UNKNOWN_LINUX_GNU_RUSTFLAGS=" >> "$GITHUB_ENV"
+          echo "CARGO_TARGET_X86_64_UNKNOWN_LINUX_MUSL_RUSTFLAGS=" >> "$GITHUB_ENV"
+          echo "CARGO_TARGET_AARCH64_UNKNOWN_LINUX_MUSL_RUSTFLAGS=" >> "$GITHUB_ENV"
+      - name: Configure musl rusty_v8 artifact overrides and verify checksums
+        uses: ./.github/actions/setup-rusty-v8-musl
+        with:
+          target: ${{ matrix.target }}
       - name: Build codex
         run: cargo build --target ${{ matrix.target }} --release --bin codex
       - name: Stage native vendor payload