[webkit-changes] [WebKit/WebKit] df11c6: [JSC] Fail gracefully when toBase64 result string ...

[Yusuke Suzuki]

  Branch: refs/heads/main
  Home:   https://github.com/WebKit/WebKit
  Commit: df11c6df0e27a4ac300cac175b79ff7ffe502ba0
      https://github.com/WebKit/WebKit/commit/df11c6df0e27a4ac300cac175b79ff7ffe502ba0
  Author: Yusuke Suzuki <ysuzuki at apple.com>
  Date:   2024-08-29 (Thu, 29 Aug 2024)

  Changed paths:
    A JSTests/stress/too-large-base64-string.js
    M Source/JavaScriptCore/runtime/JSGenericTypedArrayViewPrototype.cpp

  Log Message:
  -----------
  [JSC] Fail gracefully when toBase64 result string is too large
https://bugs.webkit.org/show_bug.cgi?id=278899
rdar://134953795

Reviewed by Mark Lam.

toBase64 result can be larger than StringImpl max size. Use base64EncodeToStringReturnNullIfOverflow instead
to handle OOM case gracefully.

* JSTests/stress/too-large-base64-string.js: Added.
(shouldThrow):
* Source/JavaScriptCore/runtime/JSGenericTypedArrayViewPrototype.cpp:
(JSC::JSC_DEFINE_HOST_FUNCTION):

Canonical link: https://commits.webkit.org/282949@main



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