mesa: Fix array out-of-bounds access by _mesa_TexGenf.

_mesa_TexGenf calls _mesa_TexGenfv, which uses the params argument
as an array.
(cherry picked from commit ca5a7aadb4361e7d053aea8687372cd44cbd8795)

diff --git a/src/mesa/main/texgen.c b/src/mesa/main/texgen.c
index 13b33745b862314fe1fb18b82a78f608e2524e55..d3ea7b936b3997b791514fa689923bc6a15f6fe2 100644 (file)
--- a/src/mesa/main/texgen.c
+++ b/src/mesa/main/texgen.c
@@ -206,7 +206,10 @@ _mesa_TexGendv(GLenum coord, GLenum pname, const GLdouble *params )
 void GLAPIENTRY
 _mesa_TexGenf( GLenum coord, GLenum pname, GLfloat param )
 {
-   _mesa_TexGenfv(coord, pname, &param);
+   GLfloat p[4];
+   p[0] = param;
+   p[1] = p[2] = p[3] = 0.0F;
+   _mesa_TexGenfv(coord, pname, p);
 }