mesa: Fix off-by-one error in Parse_TextureImageId.

Fixes out-of-bounds write defect reported by Coverity.

Signed-off-by: Vinson Lee <vlee@freedesktop.org>
Reviewed-by: Brian Paul <brianp@vmware.com>
This commit is contained in:
Vinson Lee 2012-08-03 23:51:34 -07:00
parent 3e7b3a04bf
commit 61b62c007a

View file

@ -582,7 +582,7 @@ Parse_TextureImageId(struct parse_state *parseState,
RETURN_ERROR1("Expected TEX# source");
}
unit = atoi((const char *) imageSrc + 3);
if ((unit < 0 || unit > MAX_TEXTURE_IMAGE_UNITS) ||
if ((unit < 0 || unit >= MAX_TEXTURE_IMAGE_UNITS) ||
(unit == 0 && (imageSrc[3] != '0' || imageSrc[4] != 0))) {
RETURN_ERROR1("Invalied TEX# source index");
}