Description

In the Linux kernel, the following vulnerability has been resolved: kvm: s390: Reject memory region operations for ucontrol VMs This change rejects the KVM_SET_USER_MEMORY_REGION and KVM_SET_USER_MEMORY_REGION2 ioctls when called on a ucontrol VM. This is necessary since ucontrol VMs have kvm->arch.gmap set to 0 and would thus result in a null pointer dereference further in. Memory management needs to be performed in userspace and using the ioctls KVM_S390_UCAS_MAP and KVM_S390_UCAS_UNMAP. Also improve s390 specific documentation for KVM_SET_USER_MEMORY_REGION and KVM_SET_USER_MEMORY_REGION2. [[email protected]: commit message spelling fix, subject prefix fix]

INFO

Published Date :

2024-08-17T09:21:40.994Z

Last Modified :

2025-05-04T09:26:58.133Z

Source :

Linux
AFFECTED PRODUCTS

The following products are affected by CVE-2024-43819 vulnerability.

Vendors Products
Linux
  • Linux Kernel

CVSS Vulnerability Scoring System

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