Skip to content

flag: fix nil-ptr panic & typo messages #132365

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Open
wants to merge 1 commit into
base: master
Choose a base branch
from

Conversation

mohiuddin-khan-shiam
Copy link

What changed

  • RegisterWithTaintsVar
    • Added nil-target checks in Set and String; avoids panic when slice pointer isn’t pre-initialised.
  • ReservedMemoryVar
    • Closed missing parenthesis in error string.
    • Corrected spelling in three user-visible error messages.

Why it matters

  • Prevents kubelet (and any consumer) from crashing during flag parsing if the --register-with-taints target slice wasn’t set up.
  • Clear, correctly-spelled errors make mis-configured --reserved-memory flags easier to diagnose.

No functional behaviour altered; only robustness and usability improved.

### What changed
* [RegisterWithTaintsVar](cci:2://file:///d:/Github/kubernetes/pkg/util/flag/flags.go:260:0-262:1)
  * Added nil-target checks in [Set](cci:1://file:///d:/Github/kubernetes/pkg/util/flag/flags.go:170:0-231:1) and [String](cci:1://file:///d:/Github/kubernetes/pkg/util/flag/flags.go:151:0-157:1); avoids panic when slice pointer isn’t pre-initialised.
* [ReservedMemoryVar](cci:2://file:///d:/Github/kubernetes/pkg/util/flag/flags.go:165:0-168:1)
  * Closed missing parenthesis in error string.
  * Corrected spelling in three user-visible error messages.

### Why it matters
* Prevents kubelet (and any consumer) from crashing during flag parsing if the `--register-with-taints` target slice wasn’t set up.
* Clear, correctly-spelled errors make mis-configured `--reserved-memory` flags easier to diagnose.

_No functional behaviour altered; only robustness and usability improved._
@k8s-ci-robot k8s-ci-robot added size/S Denotes a PR that changes 10-29 lines, ignoring generated files. do-not-merge/release-note-label-needed Indicates that a PR should not merge because it's missing one of the release note labels. labels Jun 17, 2025
Copy link

linux-foundation-easycla bot commented Jun 17, 2025

CLA Signed

  • ✅login: mohiuddin-khan-shiam / (e7d76f3)

The committers listed above are authorized under a signed CLA.

@k8s-ci-robot k8s-ci-robot added cncf-cla: no Indicates the PR's author has not signed the CNCF CLA. do-not-merge/needs-kind Indicates a PR lacks a `kind/foo` label and requires one. do-not-merge/needs-sig Indicates an issue or PR lacks a `sig/foo` label and requires one. labels Jun 17, 2025
@k8s-ci-robot
Copy link
Contributor

Welcome @mohiuddin-khan-shiam!

It looks like this is your first PR to kubernetes/kubernetes 🎉. Please refer to our pull request process documentation to help your PR have a smooth ride to approval.

You will be prompted by a bot to use commands during the review process. Do not be afraid to follow the prompts! It is okay to experiment. Here is the bot commands documentation.

You can also check if kubernetes/kubernetes has its own contribution guidelines.

You may want to refer to our testing guide if you run into trouble with your tests not passing.

If you are having difficulty getting your pull request seen, please follow the recommended escalation practices. Also, for tips and tricks in the contribution process you may want to read the Kubernetes contributor cheat sheet. We want to make sure your contribution gets all the attention it needs!

Thank you, and welcome to Kubernetes. 😃

@k8s-ci-robot
Copy link
Contributor

Hi @mohiuddin-khan-shiam. Thanks for your PR.

I'm waiting for a kubernetes member to verify that this patch is reasonable to test. If it is, they should reply with /ok-to-test on its own line. Until that is done, I will not automatically test new commits in this PR, but the usual testing commands by org members will still work. Regular contributors should join the org to skip this step.

Once the patch is verified, the new status will be reflected by the ok-to-test label.

I understand the commands that are listed here.

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes-sigs/prow repository.

@k8s-ci-robot k8s-ci-robot added needs-ok-to-test Indicates a PR that requires an org member to verify it is safe to test. needs-triage Indicates an issue or PR lacks a `triage/foo` label and requires one. labels Jun 17, 2025
@k8s-ci-robot
Copy link
Contributor

This issue is currently awaiting triage.

If a SIG or subproject determines this is a relevant issue, they will accept it by applying the triage/accepted label and provide further guidance.

The triage/accepted label can be added by org members by writing /triage accepted in a comment.

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes-sigs/prow repository.

@k8s-ci-robot k8s-ci-robot added the needs-priority Indicates a PR lacks a `priority/foo` label and requires one. label Jun 17, 2025
@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 Jun 18, 2025
Copy link
Member

@SergeyKanzhelev SergeyKanzhelev left a comment

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

/lgtm

@k8s-ci-robot k8s-ci-robot added the lgtm "Looks good to me", indicates that a PR is ready to be merged. label Jun 18, 2025
@k8s-ci-robot
Copy link
Contributor

LGTM label has been added.

Git tree hash: 61b492cd82fa3640b6126cd7fd32fae22639eab8

@k8s-ci-robot
Copy link
Contributor

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: mohiuddin-khan-shiam, SergeyKanzhelev
Once this PR has been reviewed and has the lgtm label, please assign dims for approval. For more information see the Code Review Process.

The full list of commands accepted by this bot can be found here.

Needs approval from an approver in each of these files:

Approvers can indicate their approval by writing /approve in a comment
Approvers can cancel approval by writing /approve cancel in a comment

@SergeyKanzhelev
Copy link
Member

/release-notes-node
/sig node
/kind bug

@k8s-ci-robot k8s-ci-robot added sig/node Categorizes an issue or PR as relevant to SIG Node. kind/bug Categorizes issue or PR as related to a bug. and removed do-not-merge/needs-sig Indicates an issue or PR lacks a `sig/foo` label and requires one. do-not-merge/needs-kind Indicates a PR lacks a `kind/foo` label and requires one. labels Jun 18, 2025
@SergeyKanzhelev
Copy link
Member

/release-note-none
/release-notes-none

not sure which one is right

@k8s-ci-robot k8s-ci-robot added release-note-none Denotes a PR that doesn't merit a release note. and removed do-not-merge/release-note-label-needed Indicates that a PR should not merge because it's missing one of the release note labels. labels Jun 18, 2025
@SergeyKanzhelev
Copy link
Member

/assign @dims

as per bot recommendation

Copy link
Contributor

@Octopusjust Octopusjust left a comment

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

/ok-to-test

@k8s-ci-robot k8s-ci-robot added ok-to-test Indicates a non-member PR verified by an org member that is safe to test. and removed needs-ok-to-test Indicates a PR that requires an org member to verify it is safe to test. labels Jun 19, 2025
@bart0sh bart0sh moved this from Triage to Needs Approver in SIG Node: code and documentation PRs Jun 24, 2025
@bart0sh
Copy link
Contributor

bart0sh commented Jun 24, 2025

/retest

Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
Labels
cncf-cla: yes Indicates the PR's author has signed the CNCF CLA. kind/bug Categorizes issue or PR as related to a bug. lgtm "Looks good to me", indicates that a PR is ready to be merged. needs-priority Indicates a PR lacks a `priority/foo` label and requires one. needs-triage Indicates an issue or PR lacks a `triage/foo` label and requires one. ok-to-test Indicates a non-member PR verified by an org member that is safe to test. release-note-none Denotes a PR that doesn't merit a release note. sig/node Categorizes an issue or PR as relevant to SIG Node. size/S Denotes a PR that changes 10-29 lines, ignoring generated files.
Projects
Development

Successfully merging this pull request may close these issues.

6 participants