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-rw-r--r--src/mesa/main/api_validate.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/mesa/main/api_validate.c b/src/mesa/main/api_validate.c
index 80bc826d21..326ad6f909 100644
--- a/src/mesa/main/api_validate.c
+++ b/src/mesa/main/api_validate.c
@@ -147,7 +147,7 @@ check_index_bounds(GLcontext *ctx, GLsizei count, GLenum type,
vbo_get_minmax_index(ctx, &prim, &ib, &min, &max);
- if (min < basevertex ||
+ if (min + basevertex < 0 ||
max + basevertex > ctx->Array.ArrayObj->_MaxElement) {
/* the max element is out of bounds of one or more enabled arrays */
_mesa_warning(ctx, "glDrawElements() index=%u is "