X-Git-Url: https://glassweightruler.freedombox.rocks/gitweb/Ventoy.git/blobdiff_plain/64748308a34b5b78546c5bf5b5c44c02458c474a..fc5cd0a00a6745d7a8ce31bfadd76e8d064e18a1:/EDK2/edk2_mod/edk2-edk2-stable201911/MdeModulePkg/Application/Ventoy/VentoyProtocol.c

diff --git a/EDK2/edk2_mod/edk2-edk2-stable201911/MdeModulePkg/Application/Ventoy/VentoyProtocol.c b/EDK2/edk2_mod/edk2-edk2-stable201911/MdeModulePkg/Application/Ventoy/VentoyProtocol.c
index a6e168e..9866a4a 100644
--- a/EDK2/edk2_mod/edk2-edk2-stable201911/MdeModulePkg/Application/Ventoy/VentoyProtocol.c
+++ b/EDK2/edk2_mod/edk2-edk2-stable201911/MdeModulePkg/Application/Ventoy/VentoyProtocol.c
@@ -474,8 +474,12 @@ EFI_STATUS EFIAPI ventoy_block_io_read
         offset = Lba * 2048;
     }
 
-    VirtSec = g_chain->virt_img_size_in_bytes / 2048;    
-    if (Lba + secNum > VirtSec)
+    VirtSec = g_chain->virt_img_size_in_bytes / 2048;
+    if (Lba >= VirtSec)
+    {
+        return EFI_SUCCESS;
+    }
+    else if (Lba + secNum > VirtSec)
     {
         secNum = VirtSec - Lba;
     }