src/video/SDL_blit_slow.h
author Cameron Gutman <aicommander@gmail.com>
Sun, 28 Apr 2019 17:37:49 -0700
changeset 12746 132a2af7edac
parent 12503 806492103856
permissions -rw-r--r--
Fix use-after-free when pumping the event loop after SDL_DestroyWindow()

Closing the window is asynchronous, but we free the window data immediately,
so we can get an updateLayer callback before the window is really destroyed which
will cause us to access the freed memory.

Clearing the content view will cause it to be immediately released, so no further
updateLayer callbacks will occur.
     1 /*
     2   Simple DirectMedia Layer
     3   Copyright (C) 1997-2019 Sam Lantinga <slouken@libsdl.org>
     4 
     5   This software is provided 'as-is', without any express or implied
     6   warranty.  In no event will the authors be held liable for any damages
     7   arising from the use of this software.
     8 
     9   Permission is granted to anyone to use this software for any purpose,
    10   including commercial applications, and to alter it and redistribute it
    11   freely, subject to the following restrictions:
    12 
    13   1. The origin of this software must not be misrepresented; you must not
    14      claim that you wrote the original software. If you use this software
    15      in a product, an acknowledgment in the product documentation would be
    16      appreciated but is not required.
    17   2. Altered source versions must be plainly marked as such, and must not be
    18      misrepresented as being the original software.
    19   3. This notice may not be removed or altered from any source distribution.
    20 */
    21 
    22 #ifndef SDL_blit_slow_h_
    23 #define SDL_blit_slow_h_
    24 
    25 #include "../SDL_internal.h"
    26 
    27 extern void SDL_Blit_Slow(SDL_BlitInfo * info);
    28 
    29 #endif /* SDL_blit_slow_h_ */
    30 
    31 /* vi: set ts=4 sw=4 expandtab: */