[Webkit-unassigned] [Bug 202077] New: Safari 13 may launch leftover 32-bit plug-in process from Safari 12’s WebKit, which crashes

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=202077

            Bug ID: 202077
           Summary: Safari 13 may launch leftover 32-bit plug-in process
                    from Safari 12’s WebKit, which crashes
           Product: WebKit
           Version: WebKit Local Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Keywords: InRadar
          Severity: Normal
          Priority: P2
         Component: Plug-ins
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: mitz at webkit.org
                CC: sihui_liu at apple.com

rdar://problem/55547063

On macOS High Sierra, if Safari 13 was installed after Safari 12 had been installed, Safari may end up launching the 32-bit plug-in service left behind in the staged WebKit framework, and the service will crash immediately (because as of Safari 13, its dependencies don’t have a 32-bit slice). This can happen, for example, if there is still a 32-bit plug-in in /Library/Internet Plug-Ins, and the user chooses to manage website data.

This is because even though the 32-bit plug-in service has been removed from WebKit, the code paths that launch it haven’t been removed.

Patch forthcoming.

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