The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Sep. 20, 2016

Filed:

Nov. 03, 2015
Applicant:

International Business Machines Corporation, Armonk, NY (US);

Inventors:

David J. Harman, Chandler's Ford, GB;

Gary O. Whittingham, Romsey, GB;

Mark A. Woolley, Winchester, GB;

Andrew Wright, Chandler's Ford, GB;

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G06F 7/04 (2006.01); G06F 21/62 (2013.01); G06F 21/60 (2013.01);
U.S. Cl.
CPC ...
G06F 21/6218 (2013.01); G06F 21/602 (2013.01);
Abstract

Method and system are provided for protecting state data of computer system code. The computer system code may be operating system code, subsystem code or application code and the item of state data is not expected to change within the execution of the computer system code. The method includes: creating or modifying an item of state data having a field value and being stored in memory for access by computer system code; registering an item of state data for protection; preserving the field value of the item of state data in a form inaccessible to third party software; validating the field value of the item of state data by comparing a current field value with the preserved field value to determine if the field value has been modified; and, if the field value has been modified, taking appropriate action.


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