# CVE-2023-2008: linux: A flaw was found in the Linux kernel's udmabuf device driver, within a fault handler

CVE-2023-2008 is fixed in 39 products on 1 platform, first by RHSA-2022:8267, released November 15, 2022. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2023-2008
- Priority: High
- CVSS: 8.2 (high)
- EPSS: 0.0101
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Nov 15, 2022

## Description

A flaw was found in the Linux kernel's udmabuf device driver, within a fault handler. This issue occurs due to the lack of proper validation of user-supplied data, which can result in memory access past the end of an array. This may allow an attacker to escalate privileges and execute arbitrary code in the context of the kernel.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | bpftool RHEL 9 | 0:5.14.0-162.6.1.el9_1 | [RHSA-2022:8267](https://patchblox.com/security/data/fix/linux/rhsa-2022-8267.md) | Nov 15, 2022 |
| Linux | kernel RHEL 9 | 0:5.14.0-162.6.1.el9_1 | [RHSA-2022:8267](https://patchblox.com/security/data/fix/linux/rhsa-2022-8267.md) | Nov 15, 2022 |
| Linux | kernel-abi-stablelists RHEL 9 | 0:5.14.0-162.6.1.el9_1 | [RHSA-2022:8267](https://patchblox.com/security/data/fix/linux/rhsa-2022-8267.md) | Nov 15, 2022 |
| Linux | kernel-core RHEL 9 | 0:5.14.0-162.6.1.el9_1 | [RHSA-2022:8267](https://patchblox.com/security/data/fix/linux/rhsa-2022-8267.md) | Nov 15, 2022 |
| Linux | kernel-debug RHEL 9 | 0:5.14.0-162.6.1.el9_1 | [RHSA-2022:8267](https://patchblox.com/security/data/fix/linux/rhsa-2022-8267.md) | Nov 15, 2022 |
| Linux | kernel-debug-core RHEL 9 | 0:5.14.0-162.6.1.el9_1 | [RHSA-2022:8267](https://patchblox.com/security/data/fix/linux/rhsa-2022-8267.md) | Nov 15, 2022 |
| Linux | kernel-debug-devel RHEL 9 | 0:5.14.0-162.6.1.el9_1 | [RHSA-2022:8267](https://patchblox.com/security/data/fix/linux/rhsa-2022-8267.md) | Nov 15, 2022 |
| Linux | kernel-debug-devel-matched RHEL 9 | 0:5.14.0-162.6.1.el9_1 | [RHSA-2022:8267](https://patchblox.com/security/data/fix/linux/rhsa-2022-8267.md) | Nov 15, 2022 |
| Linux | kernel-debug-modules RHEL 9 | 0:5.14.0-162.6.1.el9_1 | [RHSA-2022:8267](https://patchblox.com/security/data/fix/linux/rhsa-2022-8267.md) | Nov 15, 2022 |
| Linux | kernel-debug-modules-extra RHEL 9 | 0:5.14.0-162.6.1.el9_1 | [RHSA-2022:8267](https://patchblox.com/security/data/fix/linux/rhsa-2022-8267.md) | Nov 15, 2022 |
| Linux | kernel-devel RHEL 9 | 0:5.14.0-162.6.1.el9_1 | [RHSA-2022:8267](https://patchblox.com/security/data/fix/linux/rhsa-2022-8267.md) | Nov 15, 2022 |
| Linux | kernel-devel-matched RHEL 9 | 0:5.14.0-162.6.1.el9_1 | [RHSA-2022:8267](https://patchblox.com/security/data/fix/linux/rhsa-2022-8267.md) | Nov 15, 2022 |
| Linux | kernel-doc RHEL 9 | 0:5.14.0-162.6.1.el9_1 | [RHSA-2022:8267](https://patchblox.com/security/data/fix/linux/rhsa-2022-8267.md) | Nov 15, 2022 |
| Linux | kernel-modules RHEL 9 | 0:5.14.0-162.6.1.el9_1 | [RHSA-2022:8267](https://patchblox.com/security/data/fix/linux/rhsa-2022-8267.md) | Nov 15, 2022 |
| Linux | kernel-modules-extra RHEL 9 | 0:5.14.0-162.6.1.el9_1 | [RHSA-2022:8267](https://patchblox.com/security/data/fix/linux/rhsa-2022-8267.md) | Nov 15, 2022 |
| Linux | kernel-rt RHEL 9 | 0:5.14.0-162.6.1.rt21.168.el9_1 | [RHSA-2022:7933](https://patchblox.com/security/data/fix/linux/rhsa-2022-7933.md) | Nov 15, 2022 |
| Linux | kernel-rt-core RHEL 9 | 0:5.14.0-162.6.1.rt21.168.el9_1 | [RHSA-2022:7933](https://patchblox.com/security/data/fix/linux/rhsa-2022-7933.md) | Nov 15, 2022 |
| Linux | kernel-rt-debug RHEL 9 | 0:5.14.0-162.6.1.rt21.168.el9_1 | [RHSA-2022:7933](https://patchblox.com/security/data/fix/linux/rhsa-2022-7933.md) | Nov 15, 2022 |
| Linux | kernel-rt-debug-core RHEL 9 | 0:5.14.0-162.6.1.rt21.168.el9_1 | [RHSA-2022:7933](https://patchblox.com/security/data/fix/linux/rhsa-2022-7933.md) | Nov 15, 2022 |
| Linux | kernel-rt-debug-devel RHEL 9 | 0:5.14.0-162.6.1.rt21.168.el9_1 | [RHSA-2022:7933](https://patchblox.com/security/data/fix/linux/rhsa-2022-7933.md) | Nov 15, 2022 |
| Linux | kernel-rt-debug-kvm RHEL 9 | 0:5.14.0-162.6.1.rt21.168.el9_1 | [RHSA-2022:7933](https://patchblox.com/security/data/fix/linux/rhsa-2022-7933.md) | Nov 15, 2022 |
| Linux | kernel-rt-debug-modules RHEL 9 | 0:5.14.0-162.6.1.rt21.168.el9_1 | [RHSA-2022:7933](https://patchblox.com/security/data/fix/linux/rhsa-2022-7933.md) | Nov 15, 2022 |
| Linux | kernel-rt-debug-modules-extra RHEL 9 | 0:5.14.0-162.6.1.rt21.168.el9_1 | [RHSA-2022:7933](https://patchblox.com/security/data/fix/linux/rhsa-2022-7933.md) | Nov 15, 2022 |
| Linux | kernel-rt-devel RHEL 9 | 0:5.14.0-162.6.1.rt21.168.el9_1 | [RHSA-2022:7933](https://patchblox.com/security/data/fix/linux/rhsa-2022-7933.md) | Nov 15, 2022 |
| Linux | kernel-rt-kvm RHEL 9 | 0:5.14.0-162.6.1.rt21.168.el9_1 | [RHSA-2022:7933](https://patchblox.com/security/data/fix/linux/rhsa-2022-7933.md) | Nov 15, 2022 |
| Linux | kernel-rt-modules RHEL 9 | 0:5.14.0-162.6.1.rt21.168.el9_1 | [RHSA-2022:7933](https://patchblox.com/security/data/fix/linux/rhsa-2022-7933.md) | Nov 15, 2022 |
| Linux | kernel-rt-modules-extra RHEL 9 | 0:5.14.0-162.6.1.rt21.168.el9_1 | [RHSA-2022:7933](https://patchblox.com/security/data/fix/linux/rhsa-2022-7933.md) | Nov 15, 2022 |
| Linux | kernel-tools RHEL 9 | 0:5.14.0-162.6.1.el9_1 | [RHSA-2022:8267](https://patchblox.com/security/data/fix/linux/rhsa-2022-8267.md) | Nov 15, 2022 |
| Linux | kernel-tools-libs RHEL 9 | 0:5.14.0-162.6.1.el9_1 | [RHSA-2022:8267](https://patchblox.com/security/data/fix/linux/rhsa-2022-8267.md) | Nov 15, 2022 |
| Linux | kernel-tools-libs-devel RHEL 9 | 0:5.14.0-162.6.1.el9_1 | [RHSA-2022:8267](https://patchblox.com/security/data/fix/linux/rhsa-2022-8267.md) | Nov 15, 2022 |
| Linux | kernel-zfcpdump RHEL 9 | 0:5.14.0-162.6.1.el9_1 | [RHSA-2022:8267](https://patchblox.com/security/data/fix/linux/rhsa-2022-8267.md) | Nov 15, 2022 |
| Linux | kernel-zfcpdump-core RHEL 9 | 0:5.14.0-162.6.1.el9_1 | [RHSA-2022:8267](https://patchblox.com/security/data/fix/linux/rhsa-2022-8267.md) | Nov 15, 2022 |
| Linux | kernel-zfcpdump-devel RHEL 9 | 0:5.14.0-162.6.1.el9_1 | [RHSA-2022:8267](https://patchblox.com/security/data/fix/linux/rhsa-2022-8267.md) | Nov 15, 2022 |
| Linux | kernel-zfcpdump-devel-matched RHEL 9 | 0:5.14.0-162.6.1.el9_1 | [RHSA-2022:8267](https://patchblox.com/security/data/fix/linux/rhsa-2022-8267.md) | Nov 15, 2022 |
| Linux | kernel-zfcpdump-modules RHEL 9 | 0:5.14.0-162.6.1.el9_1 | [RHSA-2022:8267](https://patchblox.com/security/data/fix/linux/rhsa-2022-8267.md) | Nov 15, 2022 |
| Linux | kernel-zfcpdump-modules-extra RHEL 9 | 0:5.14.0-162.6.1.el9_1 | [RHSA-2022:8267](https://patchblox.com/security/data/fix/linux/rhsa-2022-8267.md) | Nov 15, 2022 |
| Linux | linux Debian 12.15 (bookworm) | 5.18.14-1 | [DEBIAN-CVE-2023-2008](https://patchblox.com/security/data/fix/linux/debian-cve-2023-2008.md) | Apr 14, 2023 |
| Linux | linux Debian 13.5 (trixie) | 5.18.14-1 | [DEBIAN-CVE-2023-2008](https://patchblox.com/security/data/fix/linux/debian-cve-2023-2008.md) | Apr 14, 2023 |
| Linux | linux Debian 14 | 5.18.14-1 | [DEBIAN-CVE-2023-2008](https://patchblox.com/security/data/fix/linux/debian-cve-2023-2008.md) | Apr 14, 2023 |
| Linux | perf RHEL 9 | 0:5.14.0-162.6.1.el9_1 | [RHSA-2022:8267](https://patchblox.com/security/data/fix/linux/rhsa-2022-8267.md) | Nov 15, 2022 |
| Linux | python3-perf RHEL 9 | 0:5.14.0-162.6.1.el9_1 | [RHSA-2022:8267](https://patchblox.com/security/data/fix/linux/rhsa-2022-8267.md) | Nov 15, 2022 |

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Data as of 2026-11-07T12:40:37Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo