8362884: [GCC static analyzer] unix NetworkInterface.c addif leak on early returns

[fthevenet]

Hi all,

This pull request contains a backport of commit a2da75a6 from the openjdk/jdk repository.

The commit being backported was authored by Volkan Yazici on 29 Aug 2025 and was reviewed by Daniel Fuchs and Matthias Baesken.

Thanks!

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Progress

• Change must not contain extraneous whitespace
• Commit message must refer to an issue
• JDK-8362884 needs maintainer approval

Issue

• JDK-8362884: [GCC static analyzer] unix NetworkInterface.c addif leak on early returns (Bug - P4 - Requested)

Reviewing

Using git

Checkout this PR locally:
$ git fetch https://git.openjdk.org/jdk25u-dev.git pull/579/head:pull/579
$ git checkout pull/579

Update a local copy of the PR:
$ git checkout pull/579
$ git pull https://git.openjdk.org/jdk25u-dev.git pull/579/head

Using Skara CLI tools

Checkout this PR locally:
$ git pr checkout 579

View PR using the GUI difftool:
$ git pr show -t 579

Using diff file

Download this PR as a diff file:
https://git.openjdk.org/jdk25u-dev/pull/579.diff

Using Webrev

Link to Webrev Comment

[bridgekeeper]

👋 Welcome back fthevenet! A progress list of the required criteria for merging this PR into master will be added to the body of your pull request. There are additional pull request commands available for use with this pull request.

[openjdk]

❗ This change is not yet ready to be integrated.
See the Progress checklist in the description for automated requirements.

[openjdk]

This backport pull request has now been updated with issue from the original commit.

[openjdk]

⚠️ @fthevenet This change is now ready for you to apply for maintainer approval. This can be done directly in each associated issue or by using the /approval command.

[mlbridge]

Webrevs

• 00: Full (ba984e8c)

[fthevenet]

/approval request I'd like to backport this to JDK 25.

Motivation: This fixes a small memory leak in the event of an early returns where memory allocated by the CHECKED_MALLOC3 may never be freed.
Besides this, another motivation is that this allow for a functionally clean backport of JDK-8378180

[openjdk]

@fthevenet
8362884: The approval request has been created successfully.