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Make sure the string is terminated, fixed invalid read in SDL_PrivateParseGamepadConfigString()

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Sylvain 2023-12-23 21:30:09 +01:00 • committed by Sam Lantinga
parent 199f7cc3b1
commit 312f98c2a1
1 changed files with 2 additions and 0 deletions
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2
src/joystick/SDL_gamepad.c
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@ -1282,12 +1282,14 @@ static int SDL_PrivateParseGamepadConfigString(SDL_Gamepad *gamepad, const char
} else if (bGameButton) { } else if (bGameButton) {
if (i >= sizeof(szGameButton)) { if (i >= sizeof(szGameButton)) {
szGameButton[sizeof(szGameButton) - 1] = '\0';
return SDL_SetError("Button name too large: %s", szGameButton); return SDL_SetError("Button name too large: %s", szGameButton);
} }
szGameButton[i] = *pchPos; szGameButton[i] = *pchPos;
i++; i++;
} else { } else {
if (i >= sizeof(szJoystickButton)) { if (i >= sizeof(szJoystickButton)) {
szJoystickButton[sizeof(szJoystickButton) - 1] = '\0';
return SDL_SetError("Joystick button name too large: %s", szJoystickButton); return SDL_SetError("Joystick button name too large: %s", szJoystickButton);
} }
szJoystickButton[i] = *pchPos; szJoystickButton[i] = *pchPos;