CVE-2023-7122
Linux Debian vulnerability analysis and mitigation

Overview

A slab-use-after-free vulnerability was discovered in the Linux kernel 6.6, specifically in the iommufd driver. The vulnerability is identified as CVE-2023-7122 and involves the iommufd_test call functionality (Red Hat Portal).

Technical details

The vulnerability occurs during the iommufdputobject() operation in the iommufd driver. The issue specifically manifests as a use-after-free condition when invoking the iommufd_test call (Debian Tracker).

Impact

The vulnerability could potentially lead to memory corruption due to the use-after-free condition in the kernel's iommufd driver, which might affect system stability and security (Red Hat Portal).

Mitigation and workarounds

The issue has been addressed in various Linux distributions. Debian has marked it as fixed in multiple versions including bullseye (5.10.234-1), bookworm (6.1.128-1), and sid/trixie (6.12.17-1). A fix was also included in the Linux kernel version 6.7-rc5 (Debian Tracker).

Additional resources


SourceThis report was generated using AI

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