github - ghsa-cp7f-67pj-cxg3

ghsa-cp7f-67pj-cxg3

Vulnerability from github

Published

2024-09-13 09:30

Modified

2024-09-19 15:30

Severity ?

5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Details

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

drm/vmwgfx: Disable coherent dumb buffers without 3d

Coherent surfaces make only sense if the host renders to them using accelerated apis. Without 3d the entire content of dumb buffers stays in the guest making all of the extra work they're doing to synchronize between guest and host useless.

Configurations without 3d also tend to run with very low graphics memory limits. The pinned console fb, mob cursors and graphical login manager tend to run out of 16MB graphics memory that those guests use.

Fix it by making sure the coherent dumb buffers are only used on configs with 3d enabled.

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{
  "affected": [],
  "aliases": [
    "CVE-2024-46712"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-09-13T07:15:06Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/vmwgfx: Disable coherent dumb buffers without 3d\n\nCoherent surfaces make only sense if the host renders to them using\naccelerated apis. Without 3d the entire content of dumb buffers stays\nin the guest making all of the extra work they\u0027re doing to synchronize\nbetween guest and host useless.\n\nConfigurations without 3d also tend to run with very low graphics\nmemory limits. The pinned console fb, mob cursors and graphical login\nmanager tend to run out of 16MB graphics memory that those guests use.\n\nFix it by making sure the coherent dumb buffers are only used on\nconfigs with 3d enabled.",
  "id": "GHSA-cp7f-67pj-cxg3",
  "modified": "2024-09-19T15:30:49Z",
  "published": "2024-09-13T09:30:32Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-46712"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c45558414b8f2e0b9dc34eb8f9d4e8359b887681"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e9fd436bb8fb9b9d31fdf07bbcdba6d30290c5e4"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

cve-2024-46712

Vulnerability from cvelistv5

Published

2024-09-13 06:44

Modified

2024-12-19 09:21

Severity ?

Summary

In the Linux kernel, the following vulnerability has been resolved: drm/vmwgfx: Disable coherent dumb buffers without 3d Coherent surfaces make only sense if the host renders to them using accelerated apis. Without 3d the entire content of dumb buffers stays in the guest making all of the extra work they're doing to synchronize between guest and host useless. Configurations without 3d also tend to run with very low graphics memory limits. The pinned console fb, mob cursors and graphical login manager tend to run out of 16MB graphics memory that those guests use. Fix it by making sure the coherent dumb buffers are only used on configs with 3d enabled.

References

▼	URL	Tags
	https://git.kernel.org/stable/c/c45558414b8f2e0b9dc34eb8f9d4e8359b887681
	https://git.kernel.org/stable/c/e9fd436bb8fb9b9d31fdf07bbcdba6d30290c5e4

Impacted products

Vendor

Product

Version

▼

Linux

Version: af6441e6f3d41e95bfc5bfc11960c259bb4f0f11
Version: d6667f0ddf46c671d379cd5fe66ce0a54d2a743a

Linux

Version: 6.10.4 ≤

Show details on NVD website

JSON

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                "id": "CVE-2024-46712",
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                  },
                  {
                    "Technical Impact": "partial"
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                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-09-29T14:59:14.613769Z",
                "version": "2.0.3"
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              "type": "ssvc"
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        ],
        "providerMetadata": {
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          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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          "vendor": "Linux",
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        }
      ],
      "providerMetadata": {
        "dateUpdated": "2024-12-19T09:21:30.460Z",
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    "dateReserved": "2024-09-11T15:12:18.254Z",
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}

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
Confirmed: The vulnerability is confirmed from an analyst perspective.
Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
Patched: This vulnerability was successfully patched by the user reporting the sighting.
Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
Not confirmed: The user expresses doubt about the veracity of the vulnerability.
Not patched: This vulnerability was not successfully patched by the user reporting the sighting.

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