[webkit-changes] [WebKit/WebKit] 616f42: Fix issue in createFidoAttestationStatementFromU2f...

[Commit Queue]

  Branch: refs/heads/main
  Home:   https://github.com/WebKit/WebKit
  Commit: 616f42b55c00040ed1afa95813b20ef10e5907de
      https://github.com/WebKit/WebKit/commit/616f42b55c00040ed1afa95813b20ef10e5907de
  Author: Pascoe <pascoe at apple.com>
  Date:   2024-05-16 (Thu, 16 May 2024)

  Changed paths:
    M Source/WebCore/Modules/webauthn/fido/U2fResponseConverter.cpp

  Log Message:
  -----------
  Fix issue in createFidoAttestationStatementFromU2fRegisterResponse
https://bugs.webkit.org/show_bug.cgi?id=272698
rdar://125024119

Reviewed by Charlie Wolfe.

Since the x509 length here is user supplied, the addition of the offset
could overflow. We fix this issue by using the CheckedArithmetic header.

Originally-landed-as: 272448.931 at safari-7618-branch (595fc4594d77). rdar://128091513
Canonical link: https://commits.webkit.org/278873@main



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