[webkit-changes] [WebKit/WebKit] da2348: REGRESSION(276827 at main): Prevent BitmapImageSource...

[Said Abou-Hallawa]

  Branch: refs/heads/main
  Home:   https://github.com/WebKit/WebKit
  Commit: da23487493c641fe1aaa8404321875beae95b65f
      https://github.com/WebKit/WebKit/commit/da23487493c641fe1aaa8404321875beae95b65f
  Author: Said Abou-Hallawa <said at apple.com>
  Date:   2024-07-01 (Mon, 01 Jul 2024)

  Changed paths:
    M Source/WebCore/platform/graphics/BitmapImageSource.cpp

  Log Message:
  -----------
  REGRESSION(276827 at main): Prevent BitmapImageSource from accessing a null ImageDecoder
https://bugs.webkit.org/show_bug.cgi?id=275999
rdar://129791964

Reviewed by Simon Fraser.

Make BitmapImageSource more robust by checking m_decoder before accessing it.
This was the behavior of the old BitmapImage/ImageSource code.

* Source/WebCore/platform/graphics/BitmapImageSource.cpp:
(WebCore::BitmapImageSource::encodedDataStatusChanged):
(WebCore::BitmapImageSource::cacheMetadataAtIndex):
(WebCore::BitmapImageSource::nativeImageAtIndexCacheIfNeeded):
(WebCore::BitmapImageSource::nativeImageAtIndexRequestIfNeeded):

Canonical link: https://commits.webkit.org/280540@main



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