Fuzz CONNECT_AUTHORIZATION hook in netebpfext_fuzzer#5297
Open
mikeagun wants to merge 1 commit into
Open
Conversation
Invoke test_cgroup_inet4_connect_authorization and test_cgroup_inet6_connect_authorization from the BPF_PROG_TYPE_CGROUP_SOCK_ADDR arm of the netebpfext libfuzzer harness. The helpers were added when the CONNECT_AUTHORIZATION readonly context test landed (PR microsoft#5230) but the fuzzer dispatch was not updated, leaving the new classify path and its filter context lifecycle uncovered by fault-injection fuzzing. Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Alan-Jowett
approved these changes
May 20, 2026
Alan-Jowett
approved these changes
May 20, 2026
Member
Alan-Jowett
left a comment
There was a problem hiding this comment.
Looks good — straightforward addition following the existing pattern.
dthaler
approved these changes
May 21, 2026
Collaborator
There was a problem hiding this comment.
Thanks for catching this. We should try to ensure that the next time a hook is added, we don't miss this again, since it should really have been in the same PR where the hook was added. Not sure if there is a good way to catch this automatically. Maybe a line in copilot-instructions.md?
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
3 participants
Add this suggestion to a batch that can be applied as a single commit.This suggestion is invalid because no changes were made to the code.Suggestions cannot be applied while the pull request is closed.Suggestions cannot be applied while viewing a subset of changes.Only one suggestion per line can be applied in a batch.Add this suggestion to a batch that can be applied as a single commit.Applying suggestions on deleted lines is not supported.You must change the existing code in this line in order to create a valid suggestion.Outdated suggestions cannot be applied.This suggestion has been applied or marked resolved.Suggestions cannot be applied from pending reviews.Suggestions cannot be applied on multi-line comments.Suggestions cannot be applied while the pull request is queued to merge.Suggestion cannot be applied right now. Please check back later.
Description
Closes #5298
Add netebpfext fuzzer support for connect_authorization hooks (IPv4 & IPv6).
Invokes test_cgroup_inet4_connect_authorization and test_cgroup_inet6_connect_authorization from the BPF_PROG_TYPE_CGROUP_SOCK_ADDR arm of the netebpfext libfuzzer harness.
Testing
Just adds connect auth (user-mode) fuzzing tests.
If new tests were added:
Documentation
N/A
Installation
N/A