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convert hang until 100% CPU 100% mem #1408

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@yanxxd

Description

@yanxxd

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  • I have written a descriptive issue title
  • I have verified that I am using the latest version of ImageMagick
  • I have searched open and closed issues to ensure it has not already been reported

Description

I found a problem that will cause the program hang, and the CPU and memory will be exhausted.
If limit memory, it will crash.

Steps to Reproduce

  1. Download and unzip POC1.zip
  2. Run magick convert POC1 /dev/null
  3. When I limit width and height, it's still hanged.
 <policy domain="resource" name="width" value="1KP"/>
 <policy domain="resource" name="height" value="1KP"/>
  1. When I limit memory use ulimit -Sv 200000, it crash quickly.
    Here is part of the information that ASan output:
        ......
        0xf4e00000-0xf4f00000
        0xf5000000-0xf5100000
        0xf519b000-0xf51b3000
        0xf51b3000-0xf51b4000   /usr/lib/locale/locale-archive
        0xf51b4000-0xf6397000
        0xf6397000-0xf6547000   /lib/i386-linux-gnu/libc-2.23.so
        0xf6547000-0xf6549000   /lib/i386-linux-gnu/libc-2.23.so
        0xf6549000-0xf654a000   /lib/i386-linux-gnu/libc-2.23.so
        0xf654a000-0xf654e000
        0xf654e000-0xf656a000   /lib/i386-linux-gnu/libgcc_s.so.1
        0xf656a000-0xf656b000   /lib/i386-linux-gnu/libgcc_s.so.1
        0xf656b000-0xf656e000   /lib/i386-linux-gnu/libdl-2.23.so
        0xf656e000-0xf656f000   /lib/i386-linux-gnu/libdl-2.23.so
        0xf656f000-0xf6570000   /lib/i386-linux-gnu/libdl-2.23.so
        0xf6570000-0xf6577000   /lib/i386-linux-gnu/librt-2.23.so
        0xf6577000-0xf6578000   /lib/i386-linux-gnu/librt-2.23.so
        0xf6578000-0xf6579000   /lib/i386-linux-gnu/librt-2.23.so
        0xf6579000-0xf6592000   /lib/i386-linux-gnu/libpthread-2.23.so
        0xf6592000-0xf6593000   /lib/i386-linux-gnu/libpthread-2.23.so
        0xf6593000-0xf6594000   /lib/i386-linux-gnu/libpthread-2.23.so
        0xf6594000-0xf6596000
        0xf6596000-0xf65e9000   /lib/i386-linux-gnu/libm-2.23.so
        0xf65e9000-0xf65ea000   /lib/i386-linux-gnu/libm-2.23.so
        0xf65ea000-0xf65eb000   /lib/i386-linux-gnu/libm-2.23.so
        0xf65eb000-0xf65ec000
        0xf65ec000-0xf660e000   /usr/lib/i386-linux-gnu/libgomp.so.1.0.0
        0xf660e000-0xf660f000   /usr/lib/i386-linux-gnu/libgomp.so.1.0.0
        0xf660f000-0xf6610000   /usr/lib/i386-linux-gnu/libgomp.so.1.0.0
        0xf6610000-0xf6629000   /lib/i386-linux-gnu/libz.so.1.2.8
        0xf6629000-0xf662a000   /lib/i386-linux-gnu/libz.so.1.2.8
        0xf662a000-0xf662b000   /lib/i386-linux-gnu/libz.so.1.2.8
        0xf662b000-0xf6646000
        0xf6646000-0xf6c47000   /usr/local/lib/libMagickWand-7.Q16HDRI.so.6.0.0
        0xf6c47000-0xf6c48000   /usr/local/lib/libMagickWand-7.Q16HDRI.so.6.0.0
        0xf6c48000-0xf6c5c000   /usr/local/lib/libMagickWand-7.Q16HDRI.so.6.0.0
        0xf6c5c000-0xf6c7e000   /usr/local/lib/libMagickWand-7.Q16HDRI.so.6.0.0
        0xf6c7e000-0xf7d8a000   /usr/local/lib/libMagickCore-7.Q16HDRI.so.6.0.0
        0xf7d8a000-0xf7e7a000   /usr/local/lib/libMagickCore-7.Q16HDRI.so.6.0.0
        0xf7e7a000-0xf7ee9000   /usr/local/lib/libMagickCore-7.Q16HDRI.so.6.0.0
        0xf7ee9000-0xf7eed000
        0xf7eed000-0xf7ef0000   [vvar]
        0xf7ef0000-0xf7ef2000   [vdso]
        0xf7ef2000-0xf7f15000   /lib/i386-linux-gnu/ld-2.23.so
        0xf7f15000-0xf7f16000   /lib/i386-linux-gnu/ld-2.23.so
        0xf7f16000-0xf7f17000   /lib/i386-linux-gnu/ld-2.23.so
        0xffd0c000-0xffd2d000   [stack]
==22437==End of process memory map.
==22437==AddressSanitizer CHECK failed:   sanitizer_common.cc:183 "((0 && "unable to mmap")) != (0)" (0x0, 0x0)
ERROR: Failed to mmap

System Configuration

  • ImageMagick version: ImageMagick 7.0.8-16 Q16 x86_64
  • Environment (Operating system, version and so on): Ubuntu 16.04.4 LTS
  • Additional information: git commit 38dd0db

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