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sys: fix filename length check during query directory operations

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This commit is contained in:
Bill Zissimopoulos
2017-12-01 17:01:59 -08:00
parent 2ca33665ef
commit c87ff75b8f
4 changed files with 100 additions and 6 deletions
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2
src/sys/file.c
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@ -2166,7 +2166,7 @@ NTSTATUS FspFileDescSetDirectoryMarker(FSP_FILE_DESC *FileDesc,
FspFsvolDeviceExtension(FileDesc->FileNode->FsvolDeviceObject);
UNICODE_STRING DirectoryMarker;
if (FsvolDeviceExtension->VolumeParams.MaxComponentLength < FileName->Length)
if (FsvolDeviceExtension->VolumeParams.MaxComponentLength * sizeof(WCHAR) < FileName->Length)
return STATUS_OBJECT_NAME_INVALID;
DirectoryMarker.Length = DirectoryMarker.MaximumLength = FileName->Length;