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Bug 2956

Summary: De-reference videodata without NULL check in X11_DispatchEvent(_THIS) function
Product: SDL Reporter: Nitz <nitin.j4>
Component: videoAssignee: Sam Lantinga <slouken>
Status: RESOLVED FIXED QA Contact: Sam Lantinga <slouken>
Severity: major    
Priority: P2    
Version: 2.0.3   
Hardware: x86   
OS: Linux   
Attachments: Patch for videodata NULL check

Description Nitz 2015-04-23 05:53:37 UTC 
Created attachment 2129 [details]
Patch for videodata NULL check

In X11_DispatchEvent(_THIS) function 

SDL_VideoData *videodata = (SDL_VideoData *) _this->driverdata;

Here videodata can be NULL, So we should apply NULL check before de-reference

Patch is attached.
Comment 1 Sam Lantinga 2016-10-08 00:26:56 UTC 
Fixed, thanks!
https://hg.libsdl.org/SDL/rev/5cf8c66c9c66

When did you see this happen? This should never happen in practice.