github - ghsa-cp7f-67pj-cxg3

GHSA-CP7F-67PJ-CXG3

Vulnerability from github – Published: 2024-09-13 09:30 – Updated: 2024-09-19 15:30

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.

Severity ?

5.5 (Medium)


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

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  "affected": [],
  "aliases": [
    "CVE-2024-46712"
  ],
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    "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"
    },
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      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c45558414b8f2e0b9dc34eb8f9d4e8359b887681"
    },
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  "severity": [
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      "type": "CVSS_V3"
    }
  ]
}

CVE-2024-46712 (GCVE-0-2024-46712)

Vulnerability from cvelistv5 – Published: 2024-09-13 06:44 – Updated: 2025-05-04 09:32

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.

Severity ?

No CVSS data available.

Assigner

Linux

References

URL

Tags

	https://git.kernel.org/stable/c/c45558414b8f2e0b9…
	https://git.kernel.org/stable/c/e9fd436bb8fb9b9d3…

Impacted products

Vendor

Product

Version

Linux

Affected: af6441e6f3d41e95bfc5bfc11960c259bb4f0f11 , < c45558414b8f2e0b9dc34eb8f9d4e8359b887681 (git)
Affected: d6667f0ddf46c671d379cd5fe66ce0a54d2a743a , < e9fd436bb8fb9b9d31fdf07bbcdba6d30290c5e4 (git)

Linux

Affected: 6.10.4 , < 6.10.8 (semver)

Show details on NVD website

JSON

To clipboard

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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-CP7F-67PJ-CXG3

CVE-2024-46712 (GCVE-0-2024-46712)

Tags

Sightings

Nomenclature