Fix begin iterator for empty arrays.#15252
Merged
1 commit merged intoJan 2, 2024
Merged
Conversation
c595f67 to
0a9cb9b
Compare
If the underlying array for a repeated field is a nullptr (which is possible for const array access on a message field that hasn't been set) the begin iterator will currently contain garbage data, which can lead to an illegal access. This CL adds a nullptr check to `begin()`, similar to what already exists for `size()`. PiperOrigin-RevId: 595217999
0a9cb9b to
670e0c2
Compare
670e0c2
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
1 participant
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Outdated suggestions cannot be applied.This suggestion has been applied or marked resolved.Suggestions cannot be applied from pending reviews.Suggestions cannot be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.
Fix begin iterator for empty arrays.
If the underlying array for a repeated field is a nullptr (which is possible for const array access on a message field that hasn't been set) the begin iterator will currently contain garbage data, which can lead to an illegal access. This CL adds a nullptr check to
begin(), similar to what already exists forsize().