Warning C28751

Banned usage of ExAllocatePool and its variants: ExAllocatePool is a banned API for improved error handling purposes.

This warning indicates the use of ExAllocatePool or one of its variants, which are deprecated. These APIs should be substituted with their more robust and secure replacements ExAllocatePool2/ExAllocatePool3.

The new API should be used even if you are already zero-ing your memory because there is too many ways to misuse the banned APIs. If performance is a concern the new APIs provides a flag (POOl_FLAG_UNINITIALIZED) that can be used to opt-out of zero-ing your memory. If you do so you will need to take the steps necessary to ensure the your memory is correctly initialized.

Remarks

See Updating Deprecated ExAllocatePool Calls to ExAllocatePool2 and ExAllocatePool3 for further information. A list of all banned functions covered by this error and recommended replacements can be found below.

Code analysis name: BANNED_API_USAGE_EXALLOCATEPOOL

Banned Functions

Banned API	Replacement Function(s)
ExAllocatePool	ExAllocatePool2
ExAllocatePoolWithTag	ExAllocatePool2
ExAllocatePoolWithQuota	ExAllocatePool2
ExAllocatePoolWithQuotaTag	ExAllocatePool2
ExAllocatePoolWithTagPriority	ExAllocatePool3