1.0.10 release

[Ventoy.git] / GRUB2 / grub-2.04 / grub-core / ventoy / ventoy_windows.c

diff --git a/GRUB2/grub-2.04/grub-core/ventoy/ventoy_windows.c b/GRUB2/grub-2.04/grub-core/ventoy/ventoy_windows.c
index e2b4eed9de2c1ad65a5f8b0ddd8a93aed1ee33b5..529d30864b2630dee3b2285016061492e8f78e3c 100644 (file)
--- a/GRUB2/grub-2.04/grub-core/ventoy/ventoy_windows.c
+++ b/GRUB2/grub-2.04/grub-core/ventoy/ventoy_windows.c
@@ -401,7 +401,7 @@ static int ventoy_update_all_hash(void *meta_data, wim_directory_entry *dir)
         return 0;
     }
 
-    if (dir->len == 0)
+    if (dir->len < sizeof(wim_directory_entry))
     {
         return 0;
     }
@@ -420,7 +420,7 @@ static int ventoy_update_all_hash(void *meta_data, wim_directory_entry *dir)
         }
     
         dir = (wim_directory_entry *)((char *)dir + dir->len);
-    } while (dir->len);
+    } while (dir->len >= sizeof(wim_directory_entry));
 
     return 0;
 }
@@ -957,4 +957,3 @@ grub_err_t ventoy_cmd_windows_chain_data(grub_extcmd_context_t ctxt, int argc, c
     VENTOY_CMD_RETURN(GRUB_ERR_NONE);
 }
 
-