Repository navigation
Conversation
…attribute php_libxml_node_free_resource() freed a detached ID attribute's children before xmlFreeProp() called xmlRemoveID(), which reads the ID value from those children, so the entry was not found and the document's ID table kept pointing at the freed attribute. Remove the ID before freeing the children, as php_libxml_node_free_list() already does. This also covers removeAttribute() while a reference to the attribute node is still held.
Member
Author
|
One of the 2 PRs mentioned in slack |
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Outdated suggestions cannot be applied.This suggestion has been applied or marked resolved.Suggestions cannot be applied from pending reviews.Suggestions cannot be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.
Freeing a detached ID attribute, for example after removeAttributeNode() and unset(), left the document's ID table pointing at it, so a later
getElementById()for that ID read freed memory. php_libxml_node_free_resource() freed the attribute's children before xmlFreeProp() called xmlRemoveID(), which needs those children to find the entry. Remove the ID first, as php_libxml_node_free_list() already does.