Unexpected hang on a crafted Cineon image

Swiss army knife of image processing

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#571 Unexpected hang on a crafted Cineon image

Milestone: v1.0_(example)

Status: closed-fixed

Owner: Bob Friesenhahn

Labels: None

Priority: 5

Updated: 2018-07-24

Created: 2018-07-23

Creator: Hongxu Chen

Private: No

When using gm to convert a cineon image to other formats, it hangs there. A sample file is attached.

1 Attachments

hang_1.cin

Discussion

Bob Friesenhahn - 2018-07-23

assigned_to: Bob Friesenhahn

private: No --> Yes
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Bob Friesenhahn - 2018-07-23

The reason for the hang is that the file claims to have dimensions of 16768256x17279, which results in the creation of a 2.2TB temporary file to read the pixels into.

Adding the option '-limit pixels 10mp' avoids the hang.

It is obvious that code should be added to reject the irrational request based on input image size.

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Bob Friesenhahn - 2018-07-24

status: open --> closed-fixed

private: Yes --> No
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Bob Friesenhahn - 2018-07-24

This issue is fixed by Mercurial Changeset 15744:4a8fc48e6aed. Thank you very much for bringing this issue to our attention.

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