From: Stefan Hajnoczi <[email protected]> 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 <[email protected]> Signed-off-by: Stefan Hajnoczi <[email protected]> Message-Id: <[email protected]> Reviewed-by: Michael S. Tsirkin <[email protected]> Signed-off-by: Michael S. Tsirkin <[email protected]> --- block/export/vhost-user-blk-server.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/block/export/vhost-user-blk-server.c b/block/export/vhost-user-blk-server.c index a3d95ca012..ab2c4d44c4 100644 --- a/block/export/vhost-user-blk-server.c +++ b/block/export/vhost-user-blk-server.c @@ -267,7 +267,9 @@ vu_blk_get_config(VuDev *vu_dev, uint8_t *config, uint32_t len) VuServer *server = container_of(vu_dev, VuServer, vu_dev); VuBlkExport *vexp = container_of(server, VuBlkExport, vu_server); - g_return_val_if_fail(len <= sizeof(struct virtio_blk_config), -1); + if (len > sizeof(struct virtio_blk_config)) { + return -1; + } memcpy(config, &vexp->blkcfg, len); return 0; -- MST
