From 7d2a210b35fbb6d638ca710329ee5792287034ca Mon Sep 17 00:00:00 2001
From: Owen Rudge <orudge@codeweavers.com>
Date: Fri, 20 Sep 2024 09:49:24 +0100
Subject: [PATCH] ntdll: Set correct MaximumLength when current directory path
 is longer than MAX_PATH.

---
 dlls/ntdll/env.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/dlls/ntdll/env.c b/dlls/ntdll/env.c
index 720597dcaf9..e0fd75762ec 100644
--- a/dlls/ntdll/env.c
+++ b/dlls/ntdll/env.c
@@ -614,7 +614,7 @@ NTSTATUS WINAPI RtlCreateProcessParametersEx( RTL_USER_PROCESS_PARAMETERS **resu
             curdir = cur_params->CurrentDirectory.DosPath;
     }
     else curdir = *CurrentDirectoryName;
-    curdir.MaximumLength = MAX_PATH * sizeof(WCHAR);
+    curdir.MaximumLength = max(curdir.Length, MAX_PATH * sizeof(WCHAR));
 
     if (!CommandLine) CommandLine = ImagePathName;
     if (!Environment && cur_params) Environment = cur_params->Environment;