==32494== Invalid write of size 1
==32494==   at 0x4027164: memcpy
==32494==   by 0x486C3F4: ??? (in /usr/lib/libXi.so.6.1.0) 
==32494==   by 0x472E7C7:_XCopyEventCookie(in /usr/lib/libX11.so.6.3.0) 
==32494==   by 0x471E481: XPeekEvent (in /usr/lib/libX11.so.6.3.0) 
==32494==   by 0x40D06A4: XPeekEvent (SDL_x11sym.h:94) 
==32494==   by 0x40E119A: X11_PumpEvents (SDL_x11events.c:110) 
==32494==   by 0x405FC83: SDL_PumpEvents (SDL_events.c:309) 
==32494==   by 0x40601B9: SDL_WaitEventTimeout (SDL_events.c:342) 
==32494==   by 0x4060294: SDL_PollEvent (SDL_events.c:324) 
==32494==   by 0x80488E7: main(event.c:22) 
==32494== Address 0x707f29b is 7 bytes after a block of size 60 alloc'd 
==32494==   at 0x402582E: malloc
==32494==   by 0x486C341: ??? (in /usr/lib/libXi.so.6.1.0) 
==32494==   by 0x472E7C7:_XCopyEventCookie(in /usr/lib/libX11.so.6.3.0) 
==32494==   by 0x471E481: XPeekEvent (in /usr/lib/libX11.so.6.3.0) 
==32494==   by 0x40D06A4: XPeekEvent (SDL_x11sym.h:94) 
==32494==   by 0x40E119A: X11_PumpEvents (SDL_x11events.c:110) 
==32494==   by 0x405FC83: SDL_PumpEvents (SDL_events.c:309) 
==32494==   by 0x40601B9: SDL_WaitEventTimeout (SDL_events.c:342) 
==32494==   by 0x4060294: SDL_PollEvent (SDL_events.c:324) 
==32494==   by 0x80488E7: main(event.c:22)