Alexandre Julliard : ntdll: Make sure we send valid object attributes in NtCreateUserProcess().

[Alexandre Julliard]

Module: wine
Branch: master
Commit: d0a1bddea0f618c199e2b7d9930ab06df6c61935
URL:    https://source.winehq.org/git/wine.git/?a=commit;h=d0a1bddea0f618c199e2b7d99...

Author: Alexandre Julliard 
Date:   Thu Mar  4 13:04:42 2021 +0100

ntdll: Make sure we send valid object attributes in NtCreateUserProcess().

Signed-off-by: Alexandre Julliard

---

dlls/ntdll/unix/process.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/dlls/ntdll/unix/process.c b/dlls/ntdll/unix/process.c
index 083a3a82a1d..ca9951dfa03 100644
--- a/dlls/ntdll/unix/process.c
+++ b/dlls/ntdll/unix/process.c
@@ -861,6 +861,7 @@ NTSTATUS WINAPI NtCreateUserProcess( HANDLE *process_handle_ptr, HANDLE *thread_
     CLIENT_ID id;
     HANDLE parent = 0, debug = 0, token = 0;
     UNICODE_STRING path = {0};
+    OBJECT_ATTRIBUTES empty_attr = { sizeof(empty_attr) };
     SIZE_T i, attr_count = (attr->TotalLength - sizeof(attr->TotalLength)) / sizeof(PS_ATTRIBUTE);
     const PS_ATTRIBUTE *handles_attr = NULL;
     data_size_t handles_size;
@@ -893,6 +894,7 @@ NTSTATUS WINAPI NtCreateUserProcess( HANDLE *process_handle_ptr, HANDLE *thread_
             break;
         }
     }
+    if (!process_attr) process_attr = &empty_attr;

TRACE( "%s image %s cmdline %s parent %p\n", debugstr_us( &path ),
            debugstr_us( &params->ImagePathName ), debugstr_us( &params->CommandLine ), parent );