Public bug reported:

Malformed png files can make nautilus try to eat all my memory when it
tries to preview them.

the png is here:
http://www.filehosting.org/file/details/605623/xkcd1608.png

Version of Nautilus: 1:3.18.4.is.3.14.3-0ubuntu5
Version of Ubuntu : Ubuntu 16.04.1 LTS

What I expected to happen: When I open Nautilus, some sort of preview or
a generic icon appears for the image.

What happens: Nautilus will take over more and more ram and swap until
the entire system crashes, or nautilus is closed from the shell.

Note this behavior doesn't occur when the downloads folder is opened in
any file dialog.

Additionally, similar behavior occurs when I try to open the file in
GIMP, but GIMP has the dignity of crashing before consuming too much
ram. Other ways of opening the file, like Firefox, simply report it as
having malformed content.

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

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https://bugs.launchpad.net/bugs/1629362

Title:
  Invalid Preview

Status in nautilus package in Ubuntu:
  New

Bug description:
  Malformed png files can make nautilus try to eat all my memory when it
  tries to preview them.

  the png is here:
  http://www.filehosting.org/file/details/605623/xkcd1608.png

  Version of Nautilus: 1:3.18.4.is.3.14.3-0ubuntu5
  Version of Ubuntu : Ubuntu 16.04.1 LTS

  What I expected to happen: When I open Nautilus, some sort of preview
  or a generic icon appears for the image.

  What happens: Nautilus will take over more and more ram and swap until
  the entire system crashes, or nautilus is closed from the shell.

  Note this behavior doesn't occur when the downloads folder is opened
  in any file dialog.

  Additionally, similar behavior occurs when I try to open the file in
  GIMP, but GIMP has the dignity of crashing before consuming too much
  ram. Other ways of opening the file, like Firefox, simply report it as
  having malformed content.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/nautilus/+bug/1629362/+subscriptions

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