Fix memory leak regression in openssl_pbkdf2()#21039
Closed
ndossche wants to merge 1 commit intophp:PHP-8.5from
Closed
Fix memory leak regression in openssl_pbkdf2()#21039ndossche wants to merge 1 commit intophp:PHP-8.5from
ndossche wants to merge 1 commit intophp:PHP-8.5from
Conversation
We're fetching the digest using the new method, but if an alias is used, the method is fetched via EVP_MD_fetch() which requires lifetime management. This is observable when using "sha-256" instead of "sha256" as an algorithm name. This is a regression in comparison to PHP 8.4.
bukka
approved these changes
Apr 3, 2026
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
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Outdated suggestions cannot be applied.This suggestion has been applied or marked resolved.Suggestions cannot be applied from pending reviews.Suggestions cannot be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.
We're fetching the digest using the new method, but if an alias is used, the method is fetched via EVP_MD_fetch() which requires lifetime management. This is observable when using "sha-256" instead of "sha256" as an algorithm name. This is a regression in comparison to PHP 8.4.
This was found by a hybrid static-dynamic analyser that looks for inconsistent handling of error checks in bindings.