[????-g887014c] distfogtable overflow in gl_GetFogDensity

[Edward-san]

Found this while running gzdoom with the address sanitizer.

Run gzdoom with zdcmp2, open the 'zdcmp2' map and warp to ( -3200, 790).

In that place, if you look around, at a certain point gl_GetFogDensity is called with 'lightlevel' = 256, hence "density=distfogtable[glset.lightmode!=0][lightlevel];" will overflow because distfogtable is of type float[2][256].

[Graf Zahl]

fixed