IrqlApcLte rule (wdm)

The IrqlApcLte rule specifies that the driver calls ObGetObjectSecurity and ObReleaseObjectSecurity only when it is executing at IRQL <= APC_LEVEL.

Driver model: WDM

Bug check(s) found with this rule: Bug Check 0xA: IRQL_NOT_LESS_OR_EQUAL, Bug Check 0xC4: DRIVER_VERIFIER_DETECTED_VIOLATION (0x00020002)

How to test

At compile time
Run Static Driver Verifier and specify the IrqlApcLte rule. Use the following steps to run an analysis of your code: Prepare your code (use role type declarations). Run Static Driver Verifier. View and analyze the results. For more information, see Using Static Driver Verifier to Find Defects in Drivers.

At run time
Run Driver Verifier and select the DDI compliance checking option.

Applies to

ObGetObjectSecurity ObReleaseObjectSecurity

See also

Managing Hardware Priorities Preventing Errors and Deadlocks While Using Spin Locks