# CVE-2024-49865: drm/xe/vm: move xa_alloc to prevent UAF

> A local attacker can trigger a use-after-free in the Linux kernel's Xe driver by racing VM creation and destruction, potentially leading to code execution or privilege escalation.

- **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:** 21 Oct 2024
- **Updated:** 5 Aug 2026
- **Also known as:** BELL-CVE-2024-49865, DEBIAN-CVE-2024-49865, GHSA-533j-v9v8-3c94, UBUNTU-CVE-2024-49865

## What is CVE-2024-49865?

CVE-2024-49865 is a high-severity use after free vulnerability in Linux kernel, published on 21 Oct 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/vm: move xa_alloc to prevent UAF

Evil user can guess the next id of the vm before the ioctl completes and
then call vm destroy ioctl to trigger UAF since create ioctl is still
referencing the same vm. Move the xa_alloc all the way to the end to
prevent this.

v2:
 - Rebase

(cherry picked from commit dcfd3971327f3ee92765154baebbaece833d3ca9)

Weakness: CWE-416 (Use After Free)

## Which versions are affected by CVE-2024-49865?

It affects 1 product.


Products: Linux kernel.

## How do I fix CVE-2024-49865?

Apply the vendor's patch.

## Is CVE-2024-49865 being exploited?

There is no known exploitation of CVE-2024-49865 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-2024-49865 and fix it if it is affected.

What it is: CVE-2024-49865 is a high-severity use after free vulnerability in Linux kernel, published on 21 Oct 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-2024-49865 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-2024-49865/ (Markdown: https://insights.sbomify.com/CVE-2024-49865/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2024-49865
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2024-49865
- OSV: https://osv.dev/vulnerability/CVE-2024-49865

---
From sbomify Insights: https://insights.sbomify.com/CVE-2024-49865/
Summaries are generated and may contain mistakes; the official description above is the record.