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Add test/fix for ErrShortBuffer edgecase #58817

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karlhungus
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@karlhungus karlhungus commented Jan 25, 2018

What this PR does / why we need it:

Found a bug with YAMLToJSONDecoder where subsequent reads after io.ErrShortBuffer would return values from the next yaml section, rather than the rest of the section I was reading.

Which issue(s) this PR fixes (optional, in fixes #<issue number>(, fixes #<issue_number>, ...) format, will close the issue(s) when PR gets merged):
Fixes #59055

#59055

Special notes for your reviewer:

Release note:

YAMLDecoder Read now tracks rest of buffer on io.ErrShortBuffer

@k8s-ci-robot k8s-ci-robot added release-note Denotes a PR that will be considered when it comes time to generate release notes. size/M Denotes a PR that changes 30-99 lines, ignoring generated files. labels Jan 25, 2018
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@k8s-ci-robot k8s-ci-robot added cncf-cla: no Indicates the PR's author has not signed the CNCF CLA. needs-ok-to-test Indicates a PR that requires an org member to verify it is safe to test. labels Jan 25, 2018
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/ok-to-test

@k8s-ci-robot k8s-ci-robot removed the needs-ok-to-test Indicates a PR that requires an org member to verify it is safe to test. label Jan 30, 2018
@k8s-ci-robot k8s-ci-robot added cncf-cla: yes Indicates the PR's author has signed the CNCF CLA. and removed cncf-cla: no Indicates the PR's author has not signed the CNCF CLA. labels Jan 30, 2018
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I believe everything else is in order: /assign @liggitt, please let me know if you need anything else from me

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liggitt commented Jan 31, 2018

good catch, thanks for adding the tests
/lgtm

@k8s-ci-robot k8s-ci-robot added the lgtm "Looks good to me", indicates that a PR is ready to be merged. label Jan 31, 2018
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[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: karlhungus, liggitt

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@k8s-ci-robot k8s-ci-robot added the approved Indicates a PR has been approved by an approver from all required OWNERS files. label Jan 31, 2018
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/test all [submit-queue is verifying that this PR is safe to merge]

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/retest
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/test all [submit-queue is verifying that this PR is safe to merge]

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Automatic merge from submit-queue. If you want to cherry-pick this change to another branch, please follow the instructions here.

@k8s-github-robot k8s-github-robot merged commit f3942e7 into kubernetes:master Jan 31, 2018
@karlhungus karlhungus deleted the bugfix_yaml_decoder_short_buf branch January 31, 2018 13:43
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Successfully merging this pull request may close these issues.

YAMLToJSONDecoder drops data after io.ErrShortBuffer
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