[Webkit-unassigned] [Bug 197390] New: Add assertion to check whether shm files have maximum FileProtection of CompleteUnlessOpen

bugzilla-daemon at webkit.org bugzilla-daemon at webkit.org
Mon Apr 29 15:11:27 PDT 2019


https://bugs.webkit.org/show_bug.cgi?id=197390

            Bug ID: 197390
           Summary: Add assertion to check whether shm files have maximum
                    FileProtection of CompleteUnlessOpen
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: New Bugs
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: sihui_liu at apple.com

We have seen crashes where process gets killed because it tries accessing shm file after device is locked. We are suspecting this is because database protection class of shm file is set to be Complete by apps after it's created with lower protection level.

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