diff options
Diffstat (limited to 'src/Driver/Ntdriver.c')
| -rw-r--r-- | src/Driver/Ntdriver.c | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/src/Driver/Ntdriver.c b/src/Driver/Ntdriver.c index 845aec6f..8c33a89c 100644 --- a/src/Driver/Ntdriver.c +++ b/src/Driver/Ntdriver.c @@ -2664,7 +2664,10 @@ NTSTATUS MountDevice (PDEVICE_OBJECT DeviceObject, MOUNT_STRUCT *mount) SeCaptureSubjectContext (&subContext);
SeLockSubjectContext(&subContext);
- accessToken = SeQuerySubjectContextToken (&subContext);
+ if (subContext.ClientToken && subContext.ImpersonationLevel >= SecurityImpersonation)
+ accessToken = subContext.ClientToken;
+ else
+ accessToken = subContext.PrimaryToken;
if (!accessToken)
{
@@ -3403,7 +3406,11 @@ BOOL IsVolumeAccessibleByCurrentUser (PEXTENSION volumeDeviceExtension) }
SeCaptureSubjectContext (&subContext);
- accessToken = SeQuerySubjectContextToken (&subContext);
+ SeLockSubjectContext(&subContext);
+ if (subContext.ClientToken && subContext.ImpersonationLevel >= SecurityImpersonation)
+ accessToken = subContext.ClientToken;
+ else
+ accessToken = subContext.PrimaryToken;
if (!accessToken)
goto ret;
@@ -3421,6 +3428,7 @@ BOOL IsVolumeAccessibleByCurrentUser (PEXTENSION volumeDeviceExtension) ExFreePool (tokenUser); // Documented in newer versions of WDK
ret:
+ SeUnlockSubjectContext(&subContext);
SeReleaseSubjectContext (&subContext);
return result;
}
|