[Bug 1496643] [NEW] Infinite loop in ClonePixelCacheRepository (MagickCore/cache.c:677)

[Moshe Kaplan]

Public bug reported:

Imagemagick from github.

Stack trace:

#0  0x0837347f in WritePixelCacheRegion (cache_info=<optimized out>, cache_info=<optimized out>, offset=<optimized out>, length=<optimized out>, buffer=<optimized out>) at ../ImageMagick_git/MagickCore/cache.c:3266
#1  WritePixelCachePixels (cache_info=0x8858ff8, nexus_info=0x884e070, exception=<optimized out>) at ../ImageMagick_git/MagickCore/cache.c:5281
#2  0x083701e1 in ClonePixelCacheRepository (clone_info=0x8858ff8, cache_info=0xbffed320, exception=<optimized out>) at ../ImageMagick_git/MagickCore/cache.c:677
#3  0x0836f820 in OpenPixelCache (image=0x8855d08, mode=<optimized out>, exception=<optimized out>) at ../ImageMagick_git/MagickCore/cache.c:3590
#4  0x0837165c in GetImagePixelCache (image=0x8855d08, clone=<optimized out>, exception=0x88321d8) at ../ImageMagick_git/MagickCore/cache.c:1579
#5  0x083748fc in SyncImagePixelCache (image=0xb696f040, exception=0xbfcc4) at ../ImageMagick_git/MagickCore/cache.c:5002
#6  0x08066777 in SetImageExtent (image=0xb696f040, columns=<optimized out>, rows=<optimized out>, exception=0xbfcc4) at ../ImageMagick_git/MagickCore/image.c:2445
#7  0x08214ce8 in ReadPCXImage (image_info=<optimized out>, exception=0x88321d8) at ../ImageMagick_git/coders/pcx.c:382
#8  0x083a63fd in ReadImage (image_info=<optimized out>, exception=0x88321d8) at ../ImageMagick_git/MagickCore/constitute.c:494
#9  0x083a825f in ReadImages (image_info=<optimized out>, filename=<optimized out>, exception=<optimized out>) at ../ImageMagick_git/MagickCore/constitute.c:847
#10 0x08653324 in CLINoImageOperator (cli_wand=0x0, option=<optimized out>, arg1n=<optimized out>, arg2n=0x0) at ../ImageMagick_git/MagickWand/operation.c:4656
#11 0x086553e6 in CLIOption (cli_wand=0x8837bf0, option=0x868c621 "-read") at ../ImageMagick_git/MagickWand/operation.c:5150
#12 0x0859fe2c in ProcessCommandOptions (cli_wand=<optimized out>, argc=<optimized out>, argv=<optimized out>, index=<optimized out>) at ../ImageMagick_git/MagickWand/magick-cli.c:474
#13 0x085a0c55 in MagickImageCommand (image_info=<optimized out>, argc=0x3, argv=0xbffff0f4, metadata=<optimized out>, exception=<optimized out>) at ../ImageMagick_git/MagickWand/magick-cli.c:786
#14 0x085d06f3 in MagickCommandGenesis (image_info=<optimized out>, command=<optimized out>, argc=<optimized out>, argv=<optimized out>, metadata=0x0, exception=0x88321d8) at ../ImageMagick_git/MagickWand/mogrify.c:172
#15 0x08052897 in MagickMain (argc=<optimized out>, argv=0xbffff0f4) at ../ImageMagick_git/utilities/magick.c:76
#16 main (argc=<optimized out>, argv=0xbffff0f4) at ../ImageMagick_git/utilities/magick.c:89

** Affects: imagemagick (Ubuntu)
     Importance: Undecided
         Status: New

** Attachment added: "ClonePixelCacheRepository_infinite_loop"
   https://bugs.launchpad.net/bugs/1496643/+attachment/4466459/+files/ClonePixelCacheRepository_infinite_loop

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https://bugs.launchpad.net/bugs/1496643

Title:
  Infinite loop in ClonePixelCacheRepository (MagickCore/cache.c:677)

Status in imagemagick package in Ubuntu:
  New

Bug description:
  Imagemagick from github.

  Stack trace:

  #0  0x0837347f in WritePixelCacheRegion (cache_info=<optimized out>, cache_info=<optimized out>, offset=<optimized out>, length=<optimized out>, buffer=<optimized out>) at ../ImageMagick_git/MagickCore/cache.c:3266
  #1  WritePixelCachePixels (cache_info=0x8858ff8, nexus_info=0x884e070, exception=<optimized out>) at ../ImageMagick_git/MagickCore/cache.c:5281
  #2  0x083701e1 in ClonePixelCacheRepository (clone_info=0x8858ff8, cache_info=0xbffed320, exception=<optimized out>) at ../ImageMagick_git/MagickCore/cache.c:677
  #3  0x0836f820 in OpenPixelCache (image=0x8855d08, mode=<optimized out>, exception=<optimized out>) at ../ImageMagick_git/MagickCore/cache.c:3590
  #4  0x0837165c in GetImagePixelCache (image=0x8855d08, clone=<optimized out>, exception=0x88321d8) at ../ImageMagick_git/MagickCore/cache.c:1579
  #5  0x083748fc in SyncImagePixelCache (image=0xb696f040, exception=0xbfcc4) at ../ImageMagick_git/MagickCore/cache.c:5002
  #6  0x08066777 in SetImageExtent (image=0xb696f040, columns=<optimized out>, rows=<optimized out>, exception=0xbfcc4) at ../ImageMagick_git/MagickCore/image.c:2445
  #7  0x08214ce8 in ReadPCXImage (image_info=<optimized out>, exception=0x88321d8) at ../ImageMagick_git/coders/pcx.c:382
  #8  0x083a63fd in ReadImage (image_info=<optimized out>, exception=0x88321d8) at ../ImageMagick_git/MagickCore/constitute.c:494
  #9  0x083a825f in ReadImages (image_info=<optimized out>, filename=<optimized out>, exception=<optimized out>) at ../ImageMagick_git/MagickCore/constitute.c:847
  #10 0x08653324 in CLINoImageOperator (cli_wand=0x0, option=<optimized out>, arg1n=<optimized out>, arg2n=0x0) at ../ImageMagick_git/MagickWand/operation.c:4656
  #11 0x086553e6 in CLIOption (cli_wand=0x8837bf0, option=0x868c621 "-read") at ../ImageMagick_git/MagickWand/operation.c:5150
  #12 0x0859fe2c in ProcessCommandOptions (cli_wand=<optimized out>, argc=<optimized out>, argv=<optimized out>, index=<optimized out>) at ../ImageMagick_git/MagickWand/magick-cli.c:474
  #13 0x085a0c55 in MagickImageCommand (image_info=<optimized out>, argc=0x3, argv=0xbffff0f4, metadata=<optimized out>, exception=<optimized out>) at ../ImageMagick_git/MagickWand/magick-cli.c:786
  #14 0x085d06f3 in MagickCommandGenesis (image_info=<optimized out>, command=<optimized out>, argc=<optimized out>, argv=<optimized out>, metadata=0x0, exception=0x88321d8) at ../ImageMagick_git/MagickWand/mogrify.c:172
  #15 0x08052897 in MagickMain (argc=<optimized out>, argv=0xbffff0f4) at ../ImageMagick_git/utilities/magick.c:76
  #16 main (argc=<optimized out>, argv=0xbffff0f4) at ../ImageMagick_git/utilities/magick.c:89

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