# CVE-2024-46705: drm/xe: reset mmio mappings with devm

> A null pointer dereference in the Linux kernel's Xe driver can cause a system crash if MMIO mappings are accessed after device removal.

- **Severity:** High 7.8 (`CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 13 Sep 2024
- **Updated:** 5 Aug 2026
- **Also known as:** AZL-49321, AZL-49344, BELL-CVE-2024-46705, DEBIAN-CVE-2024-46705, GHSA-qfxc-fjvg-2qgm, ROOT-OS-UBUNTU-2204-CVE-2024-46705, UBUNTU-CVE-2024-46705

## What is CVE-2024-46705?

CVE-2024-46705 is a high-severity vulnerability in Linux kernel, published on 13 Sep 2024. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

In the Linux kernel, the following vulnerability has been resolved:

drm/xe: reset mmio mappings with devm

Set our various mmio mappings to NULL. This should make it easier to
catch something rogue trying to mess with mmio after device removal. For
example, we might unmap everything and then start hitting some mmio
address which has already been unmamped by us and then remapped by
something else, causing all kinds of carnage.

Weakness: CWE-476 (NULL Pointer Dereference)

## Which versions are affected by CVE-2024-46705?

It affects 1 product.


Products: Linux kernel.

## How do I fix CVE-2024-46705?

Apply the vendor's patch.

## Is CVE-2024-46705 being exploited?

There is no known exploitation of CVE-2024-46705 in the wild and no public exploit code.

## Other vulnerabilities in Linux kernel

- [CVE-2026-53266](https://insights.sbomify.com/CVE-2026-53266/): Linux Kernel Out-of-Bounds Write (high 8.8, exploited in the wild)
- [CVE-2013-6282](https://insights.sbomify.com/CVE-2013-6282/): Linux Kernel Improper Input Validation (high 8.8, exploited in the wild)
- [CVE-2022-0185](https://insights.sbomify.com/CVE-2022-0185/): Linux Kernel Heap-Based Buffer Overflow (high 8.4, exploited in the wild)
- [CVE-2013-2094](https://insights.sbomify.com/CVE-2013-2094/): Linux Kernel Privilege Escalation (high 8.4, exploited in the wild)
- [CVE-2026-53362](https://insights.sbomify.com/CVE-2026-53362/): Linux Kernel Unspecified (high 7.8, exploited in the wild)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2024-46705 and fix it if it is affected.

What it is: CVE-2024-46705 is a high-severity vulnerability in Linux kernel, published on 13 Sep 2024. It can only be exploited from the same machine or local network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2024-46705 in the wild and no public exploit code.

Affected product: Linux kernel. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2024-46705/ (Markdown: https://insights.sbomify.com/CVE-2024-46705/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2024-46705
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2024-46705
- OSV: https://osv.dev/vulnerability/CVE-2024-46705

---
From sbomify Insights: https://insights.sbomify.com/CVE-2024-46705/
Summaries are generated and may contain mistakes; the official description above is the record.