Branch: refs/heads/main
Home: https://github.com/WebKit/WebKit
Commit: c19a6292aab1bafc47e52b1bfb4341a06472ef75
https://github.com/WebKit/WebKit/commit/c19a6292aab1bafc47e52b1bfb4341a06472ef75
Author: Matthieu Dubet <[email protected]>
Date: 2022-10-28 (Fri, 28 Oct 2022)
Changed paths:
M Source/WebCore/platform/text/TextFlags.cpp
Log Message:
-----------
Fix use-after-free memory error
rdar://101637166
Reviewed by Brent Fulgham.
The previous code was creating a temporary vector
which was passed to Span. Because Span doesn't own
memory, the vector was (potentially) released at
the end of the lambda function.
With this patch, a reference to the vector stored in
the HashMap is given to Span<> (we don't use a temporary anymore),
which is live for at least the whole duration of the
computeFontFeatureSettingsFromVariants function.
* Source/WebCore/platform/text/TextFlags.cpp:
(WebCore::computeFeatureSettingsFromVariants):
Canonical link: https://commits.webkit.org/256089@main
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