Bug 241560

Summary:	Avoid using hardware JPEG decoding in the WebContent process
Product:	WebKit	Reporter:	Brent Fulgham <bfulgham>
Component:	Images	Assignee:	Brent Fulgham <bfulgham>
Status:	RESOLVED FIXED
Severity:	Normal	CC:	sabouhallawa, webkit-bug-importer
Priority:	P2	Keywords:	InRadar
Version:	WebKit Nightly Build
Hardware:	Unspecified
OS:	Unspecified

Description Brent Fulgham 2022-06-13 11:39:02 PDT

We disable hardware JPEG decoding so that we can block IOSurface uses in the WebContent process. We missed a scenario where using a file picker might need to create an image thumbnail/icon, which now triggers a sandbox violation potentially crashing the WCP.

This patch instructs CoreGraphics to use the software path, similar to how we fixed Bug 238489.

Comment 1 Brent Fulgham 2022-06-13 11:39:15 PDT

<rdar://88717577>

Comment 2 Brent Fulgham 2022-06-13 11:45:04 PDT

Pull request: https://github.com/WebKit/WebKit/pull/1475

Comment 3 EWS 2022-06-17 16:48:41 PDT

Committed r295648 (251653@main): <https://commits.webkit.org/251653@main>

Reviewed commits have been landed. Closing PR #1475 and removing active labels.

Comment 4 Radar WebKit Bug Importer 2022-06-17 16:49:14 PDT

<rdar://problem/95422790>