From 0cb1bd0fff0aa76e0af481858e8272ee3b4377a9 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Marc-Andr=C3=A9=20Lureau?= <marcandre.lureau@redhat.com>
Date: Mon, 18 Jan 2016 23:05:31 +0100
Subject: [PATCH] renderer: do not accept invalid format
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That would later crash in util_format_description() or others

Fix found thanks to american fuzzy lop.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
---
 src/vrend_renderer.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/vrend_renderer.c b/src/vrend_renderer.c
index c24b94d..df76637 100644
--- a/src/vrend_renderer.c
+++ b/src/vrend_renderer.c
@@ -1058,6 +1058,10 @@ int vrend_create_surface(struct vrend_context *ctx,
    struct vrend_resource *res;
    uint32_t ret_handle;
 
+   if (format >= PIPE_FORMAT_COUNT) {
+      return EINVAL;
+   }
+
    res = vrend_renderer_ctx_res_lookup(ctx, res_handle);
    if (!res) {
       report_context_error(ctx, VIRGL_ERROR_CTX_ILLEGAL_RESOURCE, res_handle);