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enclave-builder: normalize app file modes in initramfs #351

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ryansquared merged 3 commits from fix/eif-app-mode-normalization into main 2026年07月06日 22:30:13 +02:00

Commit 0667439 replaced the in-container 'cp -r' app copy with a direct COPY app/ /build/initramfs/, dropping the umask normalization it gave for free.
App file modes then leaked the build host's umask into PCR0/PCR1, so caution verify mismatched deploys across hosts. Force canonical modes.

Commit 0667439 replaced the in-container 'cp -r' app copy with a direct COPY app/ /build/initramfs/, dropping the umask normalization it gave for free. App file modes then leaked the build host's umask into PCR0/PCR1, so caution verify mismatched deploys across hosts. Force canonical modes.
Commit 0667439 replaced the in-container 'cp -r' app copy with a direct
COPY app/ /build/initramfs/, dropping the umask normalization it gave for
free. App file modes then leaked the build host's umask into PCR0/PCR1, so
caution verify mismatched deploys across hosts. Force canonical modes.
@ -150,0 +160,4 @@
# find/chmod here are busybox (this stage is FROM busybox); use octal -perm masks
# (-0100 = user-exec bit set) which every busybox build parses unambiguously.
RUN find /build/initramfs -type d -exec chmod 0755 {} + && \
find /build/initramfs -type f -perm -0100 -exec chmod 0755 {} + && \

-executable has clearer intent than -perm -0100, and as per find documentation: "This takes into account access control lists and other permissions artefacts which the -perm test ignores."

-executable has clearer intent than -perm -0100, and as per `find` documentation: "This takes into account access control lists and other permissions artefacts which the -perm test ignores."
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Switched to -executable + verified busybox find supports it

Switched to -executable + verified busybox find supports it
ryansquared manually merged commit 8622037336 into main 2026年07月06日 22:30:13 +02:00
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