# CVE-2024-39485: media: v4l: async: Properly re-initialise notifier entry in unregister

> A use-after-free vulnerability in the Linux kernel's V4L2 async subsystem allows attackers to cause denial of service or potentially execute code.

- **Severity:** Medium 5.5 (`CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/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:** 5 Jul 2024
- **Updated:** 11 May 2026
- **Also known as:** AZL-43261, BELL-CVE-2024-39485, DEBIAN-CVE-2024-39485, GHSA-6gfx-cx3g-jx7c, UBUNTU-CVE-2024-39485

## What is CVE-2024-39485?

CVE-2024-39485 is a medium-severity use after free vulnerability in Linux kernel, published on 5 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:

media: v4l: async: Properly re-initialise notifier entry in unregister

The notifier_entry of a notifier is not re-initialised after unregistering
the notifier. This leads to dangling pointers being left there so use
list_del_init() to return the notifier_entry an empty list.

Weakness: CWE-665 (Improper Initialization)

## Which versions are affected by CVE-2024-39485?

It affects 1 product.


Products: Linux kernel.

## How do I fix CVE-2024-39485?

Apply the vendor's patch.

## Is CVE-2024-39485 being exploited?

There is no known exploitation of CVE-2024-39485 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-2024-39485 and fix it if it is affected.

What it is: CVE-2024-39485 is a medium-severity use after free vulnerability in Linux kernel, published on 5 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-2024-39485 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-2024-39485/ (Markdown: https://insights.sbomify.com/CVE-2024-39485/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2024-39485
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2024-39485
- OSV: https://osv.dev/vulnerability/CVE-2024-39485

---
From sbomify Insights: https://insights.sbomify.com/CVE-2024-39485/
Summaries are generated and may contain mistakes; the official description above is the record.