chore: cherry-pick eed5a4de2c40 from chromium #36679
Merged
Conversation
This file contains 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
ppontes
added
21-x-y
backport-check-skip
electron-cation
bot
added
new-pr 🌱
nornagon
approved these changes
Dec 19, 2022
|
Release Notes Persisted
|
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Outdated suggestions cannot be applied.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.
Fix UaF in ui::DropTargetEvent::DropTargetEvent.
There is an async operation in WebContentsViewAura that uses a ui::DropTargetEvent. DropTargetEvent has a pointer to OSExchangeData which gets destroyed before the async operation is called. This triggers the UaF because the operation attempts to reference a freed object (OSExchangeData).
Fix is for WebContentsViewAura::DragUpdatedCallback to use a DropMetadata struct instead of a ui::DropTargetEvent. This is the same pattern used by other callbacks in WebContentsViewAura.
(cherry picked from commit 9f4b5761c546a118b7187c0c7ddcb9ee5756f32c)
Bug: 1392661
Change-Id: I3c62a7473ef9b6cdd223f75fbda50671f539f9eb
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/4070787
Reviewed-by: Avi Drissman avi@chromium.org
Commit-Queue: David Yeung dayeung@chromium.org
Cr-Original-Commit-Position: refs/heads/main@{#1078218}
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/4085256
Cr-Commit-Position: refs/branch-heads/5359@{#1125}
Cr-Branched-From: 27d3765d341b09369006d030f83f582a29eb57ae-refs/heads/main@{#1058933}
Ref electron/security#262
Notes: Security: backported fix for CVE-2022-4439.