vrend: fix boundary check for SSBO state update

(PIPE_MAX_SHADER_BUFFERS - num_ssbo) can underflow. Signed-off-by: Chia-I Wu <olvaffe@gmail.com> Reviewed-by: Yiwei Zhang <zzyiwei@chromium.org>
3 years ago · 673f4d0c1d
parent 029303e9fd
commit 673f4d0c1d
1 changed files with 1 additions and 1 deletions
--- a/src/vrend_decode.c
+++ b/src/vrend_decode.c
@ -1208,7 +1208,7 @@ static int vrend_decode_set_shader_buffers(struct vrend_context *ctx, const uint
      return 0;
   if (start_slot > PIPE_MAX_SHADER_BUFFERS ||
-       start_slot > PIPE_MAX_SHADER_BUFFERS - num_ssbo)
+       num_ssbo > PIPE_MAX_SHADER_BUFFERS - start_slot)
      return EINVAL;
   for (uint32_t i = 0; i < num_ssbo; i++) {