Method for secure function execution by calling address...

Details Method for secure function execution by calling address... Method for secure function execution by calling address...

G - Physics

06

F

G06F 11/30 (2006.01) G06F 1/00 (2006.01) G06F 9/40 (2006.01) G06F 12/14 (2006.01) G06F 21/00 (2006.01)

Patent

CA 2390862

A method of secure function execution is performed in a computer system (100) running an operating system platform having an operating systenm including a kernel space (114) and a process space (112) including a user application running in the process space (112). A system call is intercepted (190) and examined for validity (196) by comparing the intercepted system call originating address with a range of process valid addresses associated with a process (194). Notification is provided as to the validity of the intercepted system call (166). The intercepted system call can be terminated when found to be invalid (180).

L'invention concerne un procédé permettant d'exécuter de façon sûre une fonction dans un système informatique (100) opérant une plate-forme de système d'exploitation, ce dernier étant doté d'un espace noyau (114) et d'un espace traitement (112). L'espace traitement (112) comprend une application utilisateur exécutée dans cet espace traitement (112). Un appel système est intercepté (190) et sa validité (196) examinée par comparaison de l'adresse d'origine de l'appel système intercepté avec une gamme d'adresses de traitement valides associées à un traitement (194). Notification est faite quant à la validité de l'appel système intercepté (166). Il peut être mis fin à ce dernier s'il s'avère invalide (180).

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