From a606169aca0f086d3835996ca74e2b7b87cd9df5 Mon Sep 17 00:00:00 2001 From: Stefan Hajnoczi Date: Wed, 18 Nov 2020 09:16:43 +0000 Subject: [PATCH] contrib/vhost-user-input: avoid g_return_val_if() input validation Do not validate input with g_return_val_if(). This API is intended for checking programming errors and is compiled out with -DG_DISABLE_CHECKS. Use an explicit if statement for input validation so it cannot accidentally be compiled out. Suggested-by: Markus Armbruster Signed-off-by: Stefan Hajnoczi Message-Id: <20201118091644.199527-4-stefanha@redhat.com> Reviewed-by: Michael S. Tsirkin Signed-off-by: Michael S. Tsirkin --- contrib/vhost-user-input/main.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/contrib/vhost-user-input/main.c b/contrib/vhost-user-input/main.c index 3ea840cf44..d2de47cee7 100644 --- a/contrib/vhost-user-input/main.c +++ b/contrib/vhost-user-input/main.c @@ -211,7 +211,9 @@ static int vi_get_config(VuDev *dev, uint8_t *config, uint32_t len) { VuInput *vi = container_of(dev, VuInput, dev.parent); - g_return_val_if_fail(len <= sizeof(*vi->sel_config), -1); + if (len > sizeof(*vi->sel_config)) { + return -1; + } if (vi->sel_config) { memcpy(config, vi->sel_config, len);