Vulnerability-Lookup

GHSA-WG5X-3J3H-VR62

Vulnerability from github – Published: 2024-08-21 09:31 – Updated: 2024-09-11 18:31

Details

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

drm/virtio: Fix GEM handle creation UAF

Userspace can guess the handle value and try to race GEM object creation with handle close, resulting in a use-after-free if we dereference the object after dropping the handle's reference. For that reason, dropping the handle's reference must be done after we are done dereferencing the object.

Severity

4.7 (Medium)


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

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{
  "affected": [],
  "aliases": [
    "CVE-2022-48899"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-416"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-08-21T07:15:05Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/virtio: Fix GEM handle creation UAF\n\nUserspace can guess the handle value and try to race GEM object creation\nwith handle close, resulting in a use-after-free if we dereference the\nobject after dropping the handle\u0027s reference.  For that reason, dropping\nthe handle\u0027s reference must be done *after* we are done dereferencing\nthe object.",
  "id": "GHSA-wg5x-3j3h-vr62",
  "modified": "2024-09-11T18:31:02Z",
  "published": "2024-08-21T09:31:32Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-48899"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/011ecdbcd520c90c344b872ca6b4821f7783b2f8"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/19ec87d06acfab2313ee82b2a689bf0c154e57ea"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/52531258318ed59a2dc5a43df2eaf0eb1d65438e"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/68bcd063857075d2f9edfed6024387ac377923e2"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/adc48e5e408afbb01d261bd303fd9fbbbaa3e317"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d01d6d2b06c0d8390adf8f3ba08aa60b5642ef73"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2022-48899 (GCVE-0-2022-48899)

Vulnerability from cvelistv5 – Published: 2024-08-21 06:10 – Updated: 2026-08-05 08:52

Title

drm/virtio: Fix GEM handle creation UAF

Summary

In the Linux kernel, the following vulnerability has been resolved: drm/virtio: Fix GEM handle creation UAF Userspace can guess the handle value and try to race GEM object creation with handle close, resulting in a use-after-free if we dereference the object after dropping the handle's reference. For that reason, dropping the handle's reference must be done *after* we are done dereferencing the object.

Severity

7.8 (High)


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

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2024-09-10 16:03 UTC

Assigner

Linux CNA under the mitre root

CNA scorecard D 53/100 over 7018 records in the last 180 days details

References

6 references

URL	Tags
https://git.kernel.org/stable/c/19ec87d06acfab231…
https://git.kernel.org/stable/c/d01d6d2b06c0d8390…
https://git.kernel.org/stable/c/68bcd063857075d2f…
https://git.kernel.org/stable/c/011ecdbcd520c90c3…
https://git.kernel.org/stable/c/adc48e5e408afbb01…
https://git.kernel.org/stable/c/52531258318ed59a2…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 62fb7a5e10962ac6ae2a2d2dbd3aedcb2a3e3257 , < 19ec87d06acfab2313ee82b2a689bf0c154e57ea (git) Affected: 62fb7a5e10962ac6ae2a2d2dbd3aedcb2a3e3257 , < d01d6d2b06c0d8390adf8f3ba08aa60b5642ef73 (git) Affected: 62fb7a5e10962ac6ae2a2d2dbd3aedcb2a3e3257 , < 68bcd063857075d2f9edfed6024387ac377923e2 (git) Affected: 62fb7a5e10962ac6ae2a2d2dbd3aedcb2a3e3257 , < 011ecdbcd520c90c344b872ca6b4821f7783b2f8 (git) Affected: 62fb7a5e10962ac6ae2a2d2dbd3aedcb2a3e3257 , < adc48e5e408afbb01d261bd303fd9fbbbaa3e317 (git) Affected: 62fb7a5e10962ac6ae2a2d2dbd3aedcb2a3e3257 , < 52531258318ed59a2dc5a43df2eaf0eb1d65438e (git)
Linux	Linux	Affected: 4.4 Unaffected: 0 , < 4.4 (semver) Unaffected: 4.19.270 , ≤ 4.19.* (semver) Unaffected: 5.4.229 , ≤ 5.4.* (semver) Unaffected: 5.10.164 , ≤ 5.10.* (semver) Unaffected: 5.15.89 , ≤ 5.15.* (semver) Unaffected: 6.1.7 , ≤ 6.1.* (semver) Unaffected: 6.2 , ≤ * (original_commit_for_fix)

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                "id": "CVE-2022-48899",
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Sightings

Author	Source	Type	Date	Other

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.

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