CRpgRocket could access freed memory

[SamVanheer]

CRpgRocket could potentially access freed memory under specific circumstances.

If a player launches a rocket using an rpg, and is then stripped of all weapons, that rpg is removed altogether. The rocket will access the rpg when it hits a target to update its rocket counter. Depending on heap allocation behavior the now freed region could still be valid to access.

To fix this, the rpg rocket's pointer to the rpg needs to be changed into an EHANDLE.

Line that needs to be changed:

halflife/dlls/weapons.h

Line 743 in 5d76170

CRpg *m_pLauncher;// pointer back to the launcher that fired me.