[Poppler-bugs] [Bug 104581] New: Abort while parsing GfxFunctionShading

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=104581

            Bug ID: 104581
           Summary: Abort while parsing GfxFunctionShading
           Product: poppler
           Version: unspecified
          Hardware: Other
                OS: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: general
          Assignee: poppler-bugs at lists.freedesktop.org
          Reporter: legarrec.vincent at gmail.com

Created attachment 136661
  --> https://bugs.freedesktop.org/attachment.cgi?id=136661&action=edit
GfxFunctionShading.pdf

Abort similar with #104354

I think that with time, the fuzzer will find documents that crash on every call
of getNum, getBool, etc...

backtrace:
#0  __GI_raise (sig=sig at entry=6) at ../sysdeps/unix/sysv/linux/raise.c:51
#1  0x00007ffff6d5ecaf in __GI_abort () at abort.c:90
#2  0x00007ffff77f798c in Object::getNum (this=<optimized out>) at
/home/legarrec/info/programmation/poppler/poppler/Object.h:230
#3  GfxFunctionShading::parse (res=res at entry=0x5555557d64b0,
dict=dict at entry=0x5555557d99b0, out=out at entry=0x5555557d6670,
state=state at entry=0x5555557da510)
    at /home/legarrec/info/programmation/poppler/poppler/GfxState.cc:3763
#4  0x00007ffff78081f3 in GfxShading::parse (res=res at entry=0x5555557d64b0,
obj=obj at entry=0x7fffffffd0c0, out=out at entry=0x5555557d6670,
    state=state at entry=0x5555557da510) at
/home/legarrec/info/programmation/poppler/poppler/GfxState.cc:3576
#5  0x00007ffff772b3b5 in GfxResources::lookupShading (this=<optimized out>,
name=0x5555557da860 "Sh0", out=0x5555557d6670, state=0x5555557da510)
    at /home/legarrec/info/programmation/poppler/poppler/Gfx.cc:479
#6  0x00007ffff775210d in Gfx::opShFill (this=0x5555557d9740, args=<optimized
out>, numArgs=<optimized out>)
    at /home/legarrec/info/programmation/poppler/poppler/Gfx.cc:2400
#7  0x00007ffff774e8e1 in Gfx::go (this=this at entry=0x5555557d9740,
topLevel=topLevel at entry=true)
    at /home/legarrec/info/programmation/poppler/poppler/Gfx.cc:738
#8  0x00007ffff7750834 in Gfx::display (this=this at entry=0x5555557d9740,
obj=obj at entry=0x7fffffffd4d0, topLevel=topLevel at entry=true)
    at /home/legarrec/info/programmation/poppler/poppler/Gfx.cc:700
#9  0x00007ffff78a8281 in Page::displaySlice (this=0x5555557d9670,
out=0x5555557d6670, hDPI=108, vDPI=108, rotate=0, useMediaBox=<optimized out>,
    crop=<optimized out>, sliceX=sliceX at entry=-1, sliceY=-1, sliceW=-1,
sliceH=-1, printing=false, abortCheckCbk=0x0, abortCheckCbkData=0x0,
    annotDisplayDecideCbk=0x0, annotDisplayDecideCbkData=0x0, copyXRef=false)
at /home/legarrec/info/programmation/poppler/poppler/Page.cc:560
#10 0x00007ffff78a8aef in Page::display (this=<optimized out>, out=<optimized
out>, hDPI=<optimized out>, vDPI=<optimized out>, rotate=<optimized out>,
    useMediaBox=<optimized out>, crop=<optimized out>, printing=<optimized
out>, abortCheckCbk=0x0, abortCheckCbkData=0x0, annotDisplayDecideCbk=0x0,
    annotDisplayDecideCbkData=0x0, copyXRef=false) at
/home/legarrec/info/programmation/poppler/poppler/Page.cc:481
#11 0x00007ffff78be705 in PDFDoc::displayPages (this=0x5555557d5700,
out=0x5555557d6670, firstPage=<optimized out>, lastPage=1, hDPI=108, vDPI=108,
rotate=0,
    useMediaBox=true, crop=false, printing=false, abortCheckCbk=0x0,
abortCheckCbkData=0x0, annotDisplayDecideCbk=0x0,
annotDisplayDecideCbkData=0x0)
    at /home/legarrec/info/programmation/poppler/poppler/PDFDoc.cc:527
#12 0x00005555555612e8 in main (argc=<optimized out>, argv=<optimized out>) at
/home/legarrec/info/programmation/poppler/utils/pdftohtml.cc:392

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