title: AIO credential reference count leak
description: The aio_aqueue function, used by the lio_listio system call, fails to release a reference to a credential in an error case.
An attacker may cause the reference count to overflow, leading to a use after free (UAF).
affected:
{
defaultStatus: unknown
modules: kernel
product: FreeBSD
vendor: FreeBSD
versions:
lessThan: p1, status: affected, version: 13.1-RELEASE, versionType: release
lessThan: p12, status: affected, version: 13.0-RELEASE, versionType: release
lessThan: p6, status: affected, version: 12.3-RELEASE, versionType: release
}