[webkit-changes] [WebKit/WebKit] 69db44: [libpas] PGM Crash Testing: Align allocation to pa...

[Brandon Stewart]

  Branch: refs/heads/main
  Home:   https://github.com/WebKit/WebKit
  Commit: 69db44623766e6e27c87f20d7cb5add5220d59e9
      https://github.com/WebKit/WebKit/commit/69db44623766e6e27c87f20d7cb5add5220d59e9
  Author: Brandon Stewart <brandonstewart at apple.com>
  Date:   2024-07-10 (Wed, 10 Jul 2024)

  Changed paths:
    M Source/JavaScriptCore/jsc.cpp

  Log Message:
  -----------
  [libpas] PGM Crash Testing: Align allocation to page size
https://bugs.webkit.org/show_bug.cgi?id=276181
rdar://problem/131064444

Reviewed by David Kilzer.

PGM will align pages left or right, so by allocating the entire length of the page
it will give the same result whether left or right aligned. This will make testing guard pages reliable again.

* Source/JavaScriptCore/jsc.cpp:
(crashPGMUAF):
(crashPGMUpperGuardPage):
(crashPGMLowerGuardPage):

Canonical link: https://commits.webkit.org/280836@main



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