]> git.karo-electronics.de Git - linux-beck.git/commitdiff
drm: Avoid oops in GEM execbuffers with bad arguments.
authorEric Anholt <eric@anholt.net>
Wed, 10 Sep 2008 21:22:49 +0000 (14:22 -0700)
committerDave Airlie <airlied@linux.ie>
Fri, 17 Oct 2008 21:10:52 +0000 (07:10 +1000)
Signed-off-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Dave Airlie <airlied@redhat.com>
drivers/gpu/drm/i915/i915_gem.c

index 5fe50343de11910ba30f64477c52ac31710c0b63..29d9d21e9413f65cf11ae88ecf618777046b1b8f 100644 (file)
@@ -1763,6 +1763,10 @@ i915_gem_execbuffer(struct drm_device *dev, void *data,
                  (int) args->buffers_ptr, args->buffer_count, args->batch_len);
 #endif
 
+       if (args->buffer_count < 1) {
+               DRM_ERROR("execbuf with %d buffers\n", args->buffer_count);
+               return -EINVAL;
+       }
        /* Copy in the exec list from userland */
        exec_list = drm_calloc(sizeof(*exec_list), args->buffer_count,
                               DRM_MEM_DRIVER);