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munmap_chunk() invalid pointer problem, in cvStartFindContours_Impl() #14105

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fcyella opened this issue Mar 19, 2019 · 1 comment
Open

munmap_chunk() invalid pointer problem, in cvStartFindContours_Impl() #14105

fcyella opened this issue Mar 19, 2019 · 1 comment
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bug category: imgproc needs reproducer Provide complete minimal reproducer with input data

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@fcyella
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fcyella commented Mar 19, 2019

  • OpenCV => 4.0.1
  • Operating System / Platform => ARM64
  • Compiler => GCC 7.3
    -->

at line 307, modules/imgproc/src/contours.cpp, in cvStartFindContours_Impl(), the src and dst ptr is the same one for cvThreshold, but cvThreshold requires a const src pointer, that will cause memory crash for some cases.
@alalek
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alalek commented Mar 19, 2019

Please provide complete minimal reproducer.

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bug category: imgproc needs reproducer Provide complete minimal reproducer with input data
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@alalek @fcyella