A Crash About Heap Corruption

Discussions on NConvert - the command line tool for image conversion and manipulation

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A Crash About Heap Corruption

Post by liyan »

Dear developer:
I got a crash about the nconvert,the specific information is as follows:
1. program: the latest version of the nconvert(command: nconvert.exe -out jpeg -truecolors sample) and xnview(xnconvert.exe)
2. system: windows7-32/64
3. description: The crash occurs when function free() is called. I think the cause of the crash is heap corruption and consequent access violation in the ntdllRtlpCoalesceFreeBlocks call when heap trying to combine two unused bocks into a bigger one.

If necessary I can provide the file that causes the crash.