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Merge pull request #1785 from lovell/magick-is-a-buffer-min-len

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Ensure magick buffer+file checks use consistent min length guard
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John Cupitt 2020-08-17 12:51:37 +01:00 committed by GitHub
commit 98fdc17d2d
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libvips/foreign/magickload.c
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@ -256,7 +256,7 @@ G_DEFINE_TYPE( VipsForeignLoadMagickBuffer, vips_foreign_load_magick_buffer,
static gboolean
vips_foreign_load_magick_buffer_is_a_buffer( const void *buf, size_t len )
{
return( magick_ismagick( (const unsigned char *) buf, len ) );
return( len > 10 && magick_ismagick( (const unsigned char *) buf, len ) );
}
/* Unfortunately, libMagick does not support header-only reads very well. See