# CVE-2024-26776: spi: hisi-sfc-v3xx: Return IRQ_NONE if no interrupts were detected

> A null pointer dereference in the Hisi SFC v3xx SPI driver causes a kernel crash when an empty interrupt is received, leading to denial of service.

- **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:** 3 Apr 2024
- **Updated:** 11 May 2026
- **Also known as:** BELL-CVE-2024-26776, DEBIAN-CVE-2024-26776, GHSA-3jw4-rrq4-7g22, UBUNTU-CVE-2024-26776

## What is CVE-2024-26776?

CVE-2024-26776 is a medium-severity vulnerability in Debian Debian Linux, published on 3 Apr 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:

spi: hisi-sfc-v3xx: Return IRQ_NONE if no interrupts were detected

Return IRQ_NONE from the interrupt handler when no interrupt was
detected. Because an empty interrupt will cause a null pointer error:

    Unable to handle kernel NULL pointer dereference at virtual
  address 0000000000000008
    Call trace:
        complete+0x54/0x100
        hisi_sfc_v3xx_isr+0x2c/0x40 [spi_hisi_sfc_v3xx]
        __handle_irq_event_percpu+0x64/0x1e0
        handle_irq_event+0x7c/0x1cc

Weakness: CWE-476 (NULL Pointer Dereference)

## Which versions are affected by CVE-2024-26776?

It affects 2 products.


Products: Debian Debian Linux, Linux kernel.

## How do I fix CVE-2024-26776?

Apply the vendor's patch.

## Is CVE-2024-26776 being exploited?

There is no known exploitation of CVE-2024-26776 in the wild and no public exploit code.

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- [CVE-2025-39682](https://insights.sbomify.com/CVE-2025-39682/): Linux Kernel Improper Check for Unusual or Exceptional Conditions (critical 9.8, exploited in the wild)
- [CVE-2024-9680](https://insights.sbomify.com/CVE-2024-9680/): Mozilla Firefox Use-After-Free (critical 9.8, exploited in the wild)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2024-26776 and fix it if it is affected.

What it is: CVE-2024-26776 is a medium-severity vulnerability in Debian Debian Linux, published on 3 Apr 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-2024-26776 in the wild and no public exploit code.

Affected product: Debian Debian Linux. 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-2024-26776/ (Markdown: https://insights.sbomify.com/CVE-2024-26776/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2024-26776
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2024-26776
- OSV: https://osv.dev/vulnerability/CVE-2024-26776

---
From sbomify Insights: https://insights.sbomify.com/CVE-2024-26776/
Summaries are generated and may contain mistakes; the official description above is the record.