Building for debug in windows causes heap corruption error.
|Status:||Closed||Start date:||23 Dec 2016|
|Assignee:||Robin Mills||% Done:|
|Category:||build||Estimated time:||1.00 hour|
When building in Windows for either cmake/msvc or msvc solution from the msvc folder when creating a debug version has the issue where it will crash with a heap corruption error. Tested using MSVC 2015 CE and Pro versions.
Including image of heap corruption dialog, as well as a test image.
Running "exiv2.exe 661px-Laser_Towards_Milky_Ways_Centre-Edit.tif" from a shell or console and the error pops up.
Building a release version doesn't seem to have the issue.
#3 Updated by Ben Touchette 5 months ago
Thanks and if i find anything else i'll update it. I forgot to add the cmake flags i'd for build exiv2:
-DEXIV2_ENABLE_NLS=OFF -DEXIV2_ENABLE_VIDEO=ON -DEXIV2_ENABLE_SHARED=OFF -DEXIV2_ENABLE_BUILD_SAMPLES=OFF -DEXIV2_ENABLE_WIN_UNICODE=ON
Happy holidays Robin :)
#4 Updated by Ben Touchette 5 months ago
I spent yesterday eliminating all the undefined warnings and messages as possible culprits. It dies in Image::printIFDStructure when destroying a DataBuf it performs a delete on pData_ and dies at that point. Will keep the debugger warm & running and try to see if i understand why.
#5 Updated by Ben Touchette 5 months ago
- File image.diff added
This patch seems to fix my crash.
I haven't determined the why, but the cause was that the buffer created was several bytes too short, the memcpy always expects 4 bytes though so wee were obviously read past allocated memory. The work around for now is to allocate at least 4 bytes to the buffer if smaller than 4 bytes.
#6 Updated by Robin Mills 3 months ago
- Status changed from Assigned to Closed
- % Done changed from 0 to 100
- Estimated time set to 1.00
Fix submitted: r4708 Great team-work between Ben and Robin.
I discovered this tonight while investigating 1272/ReaganLargeTiff.tiff issues. I discovered and thought of the same fix BEFORE I looked at this bug report! Test suite successfully runs in win32/debugdll build, other than known issues concerning ReaganLargeTiff.tiff.