Bug 213807

Summary: [macOS] Stop blocking two audio-related user client classes
Product: WebKit Reporter: Brent Fulgham <bfulgham>
Component: WebKit Misc.Assignee: Brent Fulgham <bfulgham>
Status: RESOLVED FIXED    
Severity: Normal CC: bfulgham, eric.carlson, jer.noble, pvollan, webkit-bug-importer
Priority: P2 Keywords: InRadar
Version: WebKit Nightly Build   
Hardware: Unspecified   
OS: Unspecified   
Attachments:
Description Flags
Patch none

Description Brent Fulgham 2020-06-30 12:01:23 PDT 
Now that we have more widespread telemetry on our revised sandboxes, we can see that some audio playback flows are triggering violations for two IOKit classes:

IOAudioControlUserClient
IOAudioEngineUserClient

This patch restores them to the macOS sandbox.
Comment 1 Brent Fulgham 2020-06-30 12:05:27 PDT 
<rdar://problem/64874902>
Comment 2 Brent Fulgham 2020-06-30 12:07:06 PDT 
Created attachment 403218 [details]
Patch
Comment 3 Per Arne Vollan 2020-06-30 12:14:52 PDT 
Comment on attachment 403218 [details]
Patch

R=me. Would it be possible to issue extensions for these, or is there no user interaction before encountering the use of these classes in the WebContent process?
Comment 4 EWS 2020-06-30 12:52:36 PDT 
Committed r263765: <https://trac.webkit.org/changeset/263765>

All reviewed patches have been landed. Closing bug and clearing flags on attachment 403218 [details].