[pull] master from php:master#761
Merged
Merged
Conversation
…eturn gdImageSetStyle freed im->style before checking overflow2(). When the overflow check tripped and the function early-returned, im->style was left dangling. The next gdImageSetStyle, gdImageDestroy, or gdImageSetPixel gdStyled/gdStyledBrushed dispatch then freed or dereferenced it. Move the overflow check above the free to match upstream libgd (libgd/libgd src/gd.c::gdImageSetStyle), which has always had the check first. The original divergence was an oversight in 77ba248 when the overflow check was ported from libgd 2.0.29. Fixes GH-22121 Closes GH-22125
* PHP-8.4: Fix GH-22121: double-free in gdImageSetStyle() after overflow early return
* PHP-8.5: Fix GH-22121: double-free in gdImageSetStyle() after overflow early return
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 subscribe to this conversation on GitHub.
Already have an account?
Sign in.
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Outdated suggestions cannot be applied.This suggestion has been applied or marked resolved.Suggestions cannot be applied from pending reviews.Suggestions cannot be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.
See Commits and Changes for more details.
Created by
pull[bot] (v2.0.0-alpha.4)
Can you help keep this open source service alive? 💖 Please sponsor : )