github - ghsa-4hhg-35c9-5c3m

GHSA-4HHG-35C9-5C3M

Vulnerability from github – Published: 2024-08-21 09:31 – Updated: 2025-09-26 21:30

Details

In the Linux kernel, the following vulnerability has been resolved:

net/mlx5e: IPoIB, Block PKEY interfaces with less rx queues than parent

A user is able to configure an arbitrary number of rx queues when creating an interface via netlink. This doesn't work for child PKEY interfaces because the child interface uses the parent receive channels.

Although the child shares the parent's receive channels, the number of rx queues is important for the channel_stats array: the parent's rx channel index is used to access the child's channel_stats. So the array has to be at least as large as the parent's rx queue size for the counting to work correctly and to prevent out of bound accesses.

This patch checks for the mentioned scenario and returns an error when trying to create the interface. The error is propagated to the user.

Severity ?

7.8 (High)


                  
                    CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

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{
  "affected": [],
  "aliases": [
    "CVE-2022-48883"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-129"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-08-21T07:15:04Z",
    "severity": "HIGH"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet/mlx5e: IPoIB, Block PKEY interfaces with less rx queues than parent\n\nA user is able to configure an arbitrary number of rx queues when\ncreating an interface via netlink. This doesn\u0027t work for child PKEY\ninterfaces because the child interface uses the parent receive channels.\n\nAlthough the child shares the parent\u0027s receive channels, the number of\nrx queues is important for the channel_stats array: the parent\u0027s rx\nchannel index is used to access the child\u0027s channel_stats. So the array\nhas to be at least as large as the parent\u0027s rx queue size for the\ncounting to work correctly and to prevent out of bound accesses.\n\nThis patch checks for the mentioned scenario and returns an error when\ntrying to create the interface. The error is propagated to the user.",
  "id": "GHSA-4hhg-35c9-5c3m",
  "modified": "2025-09-26T21:30:26Z",
  "published": "2024-08-21T09:31:31Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-48883"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/31c70bfe58ef09fe36327ddcced9143a16e9e83d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/5844a46f09f768da866d6b0ffbf1a9073266bf24"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2022-48883 (GCVE-0-2022-48883)

Vulnerability from cvelistv5 – Published: 2024-08-21 06:10 – Updated: 2025-05-04 08:25

Summary

In the Linux kernel, the following vulnerability has been resolved: net/mlx5e: IPoIB, Block PKEY interfaces with less rx queues than parent A user is able to configure an arbitrary number of rx queues when creating an interface via netlink. This doesn't work for child PKEY interfaces because the child interface uses the parent receive channels. Although the child shares the parent's receive channels, the number of rx queues is important for the channel_stats array: the parent's rx channel index is used to access the child's channel_stats. So the array has to be at least as large as the parent's rx queue size for the counting to work correctly and to prevent out of bound accesses. This patch checks for the mentioned scenario and returns an error when trying to create the interface. The error is propagated to the user.

Severity ?

No CVSS data available.

Assigner

Linux

References

URL

Tags

	https://git.kernel.org/stable/c/5844a46f09f768da8…
	https://git.kernel.org/stable/c/31c70bfe58ef09fe3…

Impacted products

Vendor

Product

Version

Linux

Affected: be98737a4faa3a0dc1781ced5bbf5c47865e29d7 , < 5844a46f09f768da866d6b0ffbf1a9073266bf24 (git)
Affected: be98737a4faa3a0dc1781ced5bbf5c47865e29d7 , < 31c70bfe58ef09fe36327ddcced9143a16e9e83d (git)

Linux

Affected: 5.17
Unaffected: 0 , < 5.17 (semver)
Unaffected: 6.1.7 , ≤ 6.1.* (semver)
Unaffected: 6.2 , ≤ * (original_commit_for_fix)

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Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

GHSA-4HHG-35C9-5C3M

CVE-2022-48883 (GCVE-0-2022-48883)

Tags

Sightings

Nomenclature