On Sat, 28 Oct 2017, Salvatore Bonaccorso wrote:
While testing I was as well not able to reach the NULL pointer dereference but made the same observation as Bob Friesenhahn, that graphicsmagick spends a lot of time convertingthe image crating a huge temporary file, in my case reaching no space left on /tmp and aborting with
The null pointer dereference can be made to happen by applying a pixels resource limit. Normally limits make things safer but in this case it causes an error which results in a null pointer.
The latest version of the code rejects the file supplied as being impossibly small given the pixel dimensions.
Bob -- Bob Friesenhahn bfrie...@simple.dallas.tx.us, http://www.simplesystems.org/users/bfriesen/ GraphicsMagick Maintainer, http://www.GraphicsMagick.org/