[Poppler-bugs] [Bug 91240] New: PDF with nested softmasks causes crashes

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=91240

            Bug ID: 91240
           Summary: PDF with nested softmasks causes crashes
           Product: poppler
           Version: unspecified
          Hardware: Other
                OS: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: splash backend
          Assignee: poppler-bugs at lists.freedesktop.org
          Reporter: Thomas.Freitag at alfa.de

In SplashOutputDev::unsetSoftMaskFromImageMask the maskBitmap is reset to NULL.
So if a PDF has nested softmasks, the inner one resets it and the outer one
uses then the null pointer which results in a crash.

My sample bitmap is to huge and not public, therefore is send it in private.

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