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[NTOS:IO] Validate input parameters in NtQueryDirectoryFile

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It turns out this is not the job of the FS driver
This commit is contained in:
Jérôme Gardou 2020-12-10 11:30:01 +01:00
parent 1d1dba51db
commit ef4c7ae978
1 changed files with 20 additions and 0 deletions
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20
ntoskrnl/io/iomgr/iofunc.c
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@ -2052,6 +2052,26 @@ NtQueryDirectoryFile(IN HANDLE FileHandle,
_SEH2_END; _SEH2_END;
} }
/* Check input parameters */
switch (FileInformationClass)
{
#define CHECK_LENGTH(class, struct) \
case class: \
if (Length < sizeof(struct)) \
return STATUS_INFO_LENGTH_MISMATCH; \
break
CHECK_LENGTH(FileDirectoryInformation, FILE_DIRECTORY_INFORMATION);
CHECK_LENGTH(FileFullDirectoryInformation, FILE_FULL_DIR_INFORMATION);
CHECK_LENGTH(FileIdFullDirectoryInformation, FILE_ID_FULL_DIR_INFORMATION);
CHECK_LENGTH(FileNamesInformation, FILE_NAMES_INFORMATION);
CHECK_LENGTH(FileBothDirectoryInformation, FILE_BOTH_DIR_INFORMATION);
CHECK_LENGTH(FileIdBothDirectoryInformation, FILE_ID_BOTH_DIR_INFORMATION);
default:
break;
#undef CHECK_LENGTH
}
/* Get File Object */ /* Get File Object */
Status = ObReferenceObjectByHandle(FileHandle, Status = ObReferenceObjectByHandle(FileHandle,
FILE_LIST_DIRECTORY, FILE_LIST_DIRECTORY,