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

_mesa_TexParameterf calls set_tex_parameterf, which uses the params
argument as an array.

1 files changed, 7 insertions, 2 deletions

diff --git a/src/mesa/main/texparam.c b/src/mesa/main/texparam.c
index 032c22b252..310d594cd5 100644
--- a/src/mesa/main/texparam.c
+++ b/src/mesa/main/texparam.c
@@ -554,8 +554,13 @@ _mesa_TexParameterf(GLenum target, GLenum pname, GLfloat param)
       }
       break;
    default:
-      /* this will generate an error if pname is illegal */
-      need_update = set_tex_parameterf(ctx, texObj, pname, &param);
+      {
+         /* this will generate an error if pname is illegal */
+         GLfloat p[4];
+         p[0] = param;
+         p[1] = p[2] = p[3] = 0.0F;
+         need_update = set_tex_parameterf(ctx, texObj, pname, p);
+      }
    }
 
    if (ctx->Driver.TexParameter && need_update) {