Intravision/reactos
1
0
Fork 0
mirror of https://github.com/reactos/reactos.git synced 2025-04-26 08:30:21 +00:00
Code Issues Projects Releases Packages Wiki Activity

- Acquire the temporary buffer from non paged pool in NtQueryDirectoryObject, because the buffer is accessed at DPC_LEVEL.

Browse source 
- Do always add an empty entry at the end of the buffer

svn path=/trunk/; revision=17789
This commit is contained in:
Hartmut Birr 2005-09-10 22:35:08 +00:00
parent 829763c4d7
commit 3a292fe93d
1 changed files with 6 additions and 5 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

11
reactos/ntoskrnl/ob/dirobj.c
View file

@ -219,14 +219,14 @@ NtQueryDirectoryObject (IN HANDLE DirectoryHandle,
NULL);
if(NT_SUCCESS(Status))
{
PVOID TemporaryBuffer = ExAllocatePool(PagedPool,
PVOID TemporaryBuffer = ExAllocatePool(NonPagedPool,
BufferLength);
if(TemporaryBuffer != NULL)
{
POBJECT_HEADER EntryHeader;
PLIST_ENTRY ListEntry;
KIRQL OldLevel;
ULONG RequiredSize = 0;
ULONG RequiredSize = sizeof(OBJECT_DIRECTORY_INFORMATION);
ULONG nDirectories = 0;
POBJECT_DIRECTORY_INFORMATION DirInfo = (POBJECT_DIRECTORY_INFORMATION)TemporaryBuffer;
@ -315,10 +315,11 @@ NtQueryDirectoryObject (IN HANDLE DirectoryHandle,
if(NT_SUCCESS(Status) && nDirectories > 0)
{
PWSTR strbuf = (PWSTR)((POBJECT_DIRECTORY_INFORMATION)TemporaryBuffer + nDirectories);
PWSTR deststrbuf = (PWSTR)((POBJECT_DIRECTORY_INFORMATION)Buffer + nDirectories);
PWSTR strbuf = (PWSTR)((POBJECT_DIRECTORY_INFORMATION)TemporaryBuffer + nDirectories + 1);
PWSTR deststrbuf = (PWSTR)((POBJECT_DIRECTORY_INFORMATION)Buffer + nDirectories + 1);
memset((POBJECT_DIRECTORY_INFORMATION)TemporaryBuffer + nDirectories, 0, sizeof(OBJECT_DIRECTORY_INFORMATION));
CopyBytes = nDirectories * sizeof(OBJECT_DIRECTORY_INFORMATION);
CopyBytes = (nDirectories + 1) * sizeof(OBJECT_DIRECTORY_INFORMATION);
/* copy the names from the objects and append them to the list of the
objects. copy to the temporary buffer only because the directory