CVE-2022-23085 Potential jail escape vulnerabilities in netmap

A user-provided integer option was passed to nmreqcopyin without checking if it would overflow. This insufficient bounds checking could lead to kernel memory corruption. On systems configured to include netmap in their devfsruleset, a privileged process running in a jail can affect the host...

CVE-2022-23085

The FreeBSD Kernel is vulnerable to a privilege escalation flaw in the netmap component due to a numerical overflow in the nmreq_copyin() function. The issue arises from insufficient bounds checking of user-supplied integer options, which can lead to kernel memory corruption . An attacker who can...