# CVE-2024-56698: usb: dwc3: gadget: Fix looping of queued SG entries

> A null pointer dereference in the Linux kernel DWC3 USB gadget driver can cause a system crash when handling partially completed requests.

- **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:** 28 Dec 2024
- **Updated:** 11 May 2026
- **Also known as:** AZL-56169, BELL-CVE-2024-56698, DEBIAN-CVE-2024-56698, GHSA-wh76-6j96-82w8, UBUNTU-CVE-2024-56698

## What is CVE-2024-56698?

CVE-2024-56698 is a medium-severity vulnerability in Linux kernel, published on 28 Dec 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:

usb: dwc3: gadget: Fix looping of queued SG entries

The dwc3_request->num_queued_sgs is decremented on completion. If a
partially completed request is handled, then the
dwc3_request->num_queued_sgs no longer reflects the total number of
num_queued_sgs (it would be cleared).

Correctly check the number of request SG entries remained to be prepare
and queued. Failure to do this may cause null pointer dereference when
accessing non-existent SG entry.

Weakness: CWE-476 (NULL Pointer Dereference)

## Which versions are affected by CVE-2024-56698?

It affects 1 product.


Products: Linux kernel.

## How do I fix CVE-2024-56698?

Apply the vendor's patch.

## Is CVE-2024-56698 being exploited?

There is no known exploitation of CVE-2024-56698 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-2024-56698 and fix it if it is affected.

What it is: CVE-2024-56698 is a medium-severity vulnerability in Linux kernel, published on 28 Dec 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-2024-56698 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-2024-56698/ (Markdown: https://insights.sbomify.com/CVE-2024-56698/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2024-56698
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2024-56698
- OSV: https://osv.dev/vulnerability/CVE-2024-56698

---
From sbomify Insights: https://insights.sbomify.com/CVE-2024-56698/
Summaries are generated and may contain mistakes; the official description above is the record.