# CVE-2024-42123: drm/amdgpu: fix double free err_addr pointer warnings

> A double free vulnerability in the AMD GPU driver allows attackers to cause a denial of service via specific polling timeout conditions.

- **Severity:** High 7.0 (`CVSS:3.1/AV:L/AC:H/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:** 30 Jul 2024
- **Updated:** 21 Oct 2026
- **Also known as:** AZL-48111, AZL-48120, BELL-CVE-2024-42123, DEBIAN-CVE-2024-42123, GHSA-5j3v-wvv7-9rvc, ROOT-OS-DEBIAN-11-CVE-2024-42123, ROOT-OS-DEBIAN-12-CVE-2024-42123, UBUNTU-CVE-2024-42123

## What is CVE-2024-42123?

CVE-2024-42123 is a high-severity use after free vulnerability in Linux kernel, published on 30 Jul 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/amdgpu: fix double free err_addr pointer warnings

In amdgpu_umc_bad_page_polling_timeout, the amdgpu_umc_handle_bad_pages
will be run many times so that double free err_addr in some special case.
So set the err_addr to NULL to avoid the warnings.

Weakness: CWE-415 (Double Free)

## Which versions are affected by CVE-2024-42123?

It affects 1 product.


Products: Linux kernel.

## How do I fix CVE-2024-42123?

Apply the vendor's patch.

## Is CVE-2024-42123 being exploited?

There is no known exploitation of CVE-2024-42123 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-2024-42123 and fix it if it is affected.

What it is: CVE-2024-42123 is a high-severity use after free vulnerability in Linux kernel, published on 30 Jul 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-2024-42123 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-2024-42123/ (Markdown: https://insights.sbomify.com/CVE-2024-42123/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2024-42123
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2024-42123
- OSV: https://osv.dev/vulnerability/CVE-2024-42123

---
From sbomify Insights: https://insights.sbomify.com/CVE-2024-42123/
Summaries are generated and may contain mistakes; the official description above is the record.