fix(signing): keep repeated ELF signing idempotent - #339
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…336) `signELFFile` only checked bsign's signing exit code. Astra bsign 1.4.2 can return 0 after rewriting a file that immediately fails its own hash check, so a corrupt ELF shipped silently. After `bsign -N -s`, delivery-kit now runs `bsign -cE` and fails the build when the ELF-section hash does not pass. `-E` is required: without it bsign also probes absent xattr/detached stores and returns 64 even for a good ELF hash. Measured on the incident binaries: ``` pause_2: bsign -cE -> good hash, rc=0 pause: bsign -cE -> invalid hash, rc=66 ``` Exit 73 (non-zero unused signature-section bytes) now has a descriptive error instead of `unknown exit code`. That condition is intentionally build-fatal; bsign also cannot verify those files. Stub tests assert the exact ordered argv sequence and same path for signing/checking, plus failures 66 and 73. Package unit/vet pass. Related root-cause protections: deckhouse/delivery-kit-sdk#109 and deckhouse/elfedit#4. --------- Signed-off-by: Aleksei Igrychev <aleksei.igrychev@palark.com> (cherry picked from commit 5515529)
Signed-off-by: Aleksei Igrychev <aleksei.igrychev@palark.com>
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🤖 I have created a release *beep* *boop* --- ## [2.78.1-dk.2](v2.78.1-dk.1...v2.78.1-dk.2) (2026-09-22) ### Bug Fixes * **signing:** keep repeated ELF signing idempotent ([#339](#339)) ([f349dd2](f349dd2)) --- This PR was generated with [Release Please](https://github.com/googleapis/release-please). See [documentation](https://github.com/googleapis/release-please#release-please).
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Backport the ELF signing guards from #336 to the v2 line and update delivery-kit-sdk to v1.4.2.
Validation:
go mod verifygo test -count=1 -tags="dfrunsecurity dfrunnetwork dfrunmount dfssh containers_image_openpgp" ./pkg/build/signing/go vet -tags="dfrunsecurity dfrunnetwork dfrunmount dfssh containers_image_openpgp" ./pkg/build/signing/Prepared for review; do not merge automatically.