# CVE-2024-50246: fs/ntfs3: Add rough attr alloc_size check

> A missing attribute allocation size check in the Linux kernel NTFS3 driver can lead to a denial of service.

- **Severity:** High 7.8 (`CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Local or same network only
- **Victim action needed:** A user has to click or open something
- **Fix available:** Yes
- **Published:** 9 Nov 2024
- **Updated:** 15 Oct 2026
- **Also known as:** AZL-53141, BELL-CVE-2024-50246, DEBIAN-CVE-2024-50246, GHSA-r5p5-4qgc-2xcp, ROOT-OS-UBUNTU-2204-CVE-2024-50246, UBUNTU-CVE-2024-50246

## What is CVE-2024-50246?

CVE-2024-50246 is a high-severity denial of service vulnerability in Linux kernel, published on 9 Nov 2024. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

### Official description

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

fs/ntfs3: Add rough attr alloc_size check

## Which versions are affected by CVE-2024-50246?

It affects 1 product.


Products: Linux kernel.

## How do I fix CVE-2024-50246?

Apply the vendor's patch.

## Is CVE-2024-50246 being exploited?

There is no known exploitation of CVE-2024-50246 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-2024-50246 and fix it if it is affected.

What it is: CVE-2024-50246 is a high-severity denial of service vulnerability in Linux kernel, published on 9 Nov 2024. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2024-50246 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-2024-50246/ (Markdown: https://insights.sbomify.com/CVE-2024-50246/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2024-50246
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2024-50246
- OSV: https://osv.dev/vulnerability/CVE-2024-50246

---
From sbomify Insights: https://insights.sbomify.com/CVE-2024-50246/
Summaries are generated and may contain mistakes; the official description above is the record.