[webkit-changes] [WebKit/WebKit] 6dd6fa: WTF::Vector cross-container overflow ASAN support

[Abigail Fox]

  Branch: refs/heads/main
  Home:   https://github.com/WebKit/WebKit
  Commit: 6dd6fa04c07391d5a6b79a861750117d4c700aec
      https://github.com/WebKit/WebKit/commit/6dd6fa04c07391d5a6b79a861750117d4c700aec
  Author: Abigail Fox <abigail_fox at apple.com>
  Date:   2023-11-07 (Tue, 07 Nov 2023)

  Changed paths:
    M Source/WTF/wtf/Vector.h

  Log Message:
  -----------
  WTF::Vector cross-container overflow ASAN support
https://bugs.webkit.org/show_bug.cgi?id=261220
rdar://113692853

Reviewed by David Kilzer.

Added check in ASAN builds for container overflow

* Source/WTF/wtf/Vector.h:
(WTF::Malloc>::asanBufferSizeWillChangeTo):
(WTF::Malloc>::uncheckedAppend):
* Tools/TestWebKitAPI/Tests/WTF/Vector.cpp:
(TestWebKitAPI::TEST):

Originally-landed-as: 1393b618ad01. rdar://117808918
Canonical link: https://commits.webkit.org/270346@main