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sys: write: FspFsvolWriteCached

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- double-check that WriteEndOffset is within file bounds
This commit is contained in:
Bill Zissimopoulos 2019-02-28 11:00:47 -08:00
parent d2de5e996c
commit 70dd54e114
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GPG Key ID: 3D4F95D52C7B3EA3
1 changed files with 7 additions and 0 deletions
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src/sys/write.c
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@ -219,6 +219,13 @@ static NTSTATUS FspFsvolWriteCached(
}
}
/* double-check that the end offset is <= than the file size and fail if not */
if (WriteEndOffset > (UINT64)CcGetFileSizePointer(FileObject)->QuadPart)
{
FspFileNodeRelease(FileNode, Main);
return STATUS_INTERNAL_ERROR;
}
/*
* From this point forward we must jump to the CLEANUP label on failure.
*/