github - ghsa-x52v-qr6m-xx85

GHSA-X52V-QR6M-XX85

Vulnerability from github – Published: 2024-05-21 15:31 – Updated: 2024-12-11 18:30

Details

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

drm/nouveau: avoid a use-after-free when BO init fails

nouveau_bo_init() is backed by ttm_bo_init() and ferries its return code back to the caller. On failures, ttm_bo_init() invokes the provided destructor which should de-initialize and free the memory.

Thus, when nouveau_bo_init() returns an error the gem object has already been released and the memory freed by nouveau_bo_del_ttm().

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-2020-36788"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-416"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-05-21T15:15:11Z",
    "severity": "HIGH"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/nouveau: avoid a use-after-free when BO init fails\n\nnouveau_bo_init() is backed by ttm_bo_init() and ferries its return code\nback to the caller. On failures, ttm_bo_init() invokes the provided\ndestructor which should de-initialize and free the memory.\n\nThus, when nouveau_bo_init() returns an error the gem object has already\nbeen released and the memory freed by nouveau_bo_del_ttm().",
  "id": "GHSA-x52v-qr6m-xx85",
  "modified": "2024-12-11T18:30:36Z",
  "published": "2024-05-21T15:31:38Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-36788"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/548f2ff8ea5e0ce767ae3418d1ec5308990be87d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/bcf34aa5082ee2343574bc3f4d1c126030913e54"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f86e19d918a85492ad1a01fcdc0ad5ecbdac6f96"
    }
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  "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-2020-36788 (GCVE-0-2020-36788)

Vulnerability from cvelistv5 – Published: 2024-05-21 15:03 – Updated: 2025-05-04 06:59

Summary

In the Linux kernel, the following vulnerability has been resolved: drm/nouveau: avoid a use-after-free when BO init fails nouveau_bo_init() is backed by ttm_bo_init() and ferries its return code back to the caller. On failures, ttm_bo_init() invokes the provided destructor which should de-initialize and free the memory. Thus, when nouveau_bo_init() returns an error the gem object has already been released and the memory freed by nouveau_bo_del_ttm().

Severity ?

No CVSS data available.

Assigner

Linux

References

URL

Tags

	https://git.kernel.org/stable/c/f86e19d918a85492a…
	https://git.kernel.org/stable/c/548f2ff8ea5e0ce76…
	https://git.kernel.org/stable/c/bcf34aa5082ee2343…

Impacted products

Vendor

Product

Version

Linux

Affected: 019cbd4a4feb3aa3a917d78e7110e3011bbff6d5 , < f86e19d918a85492ad1a01fcdc0ad5ecbdac6f96 (git)
Affected: 019cbd4a4feb3aa3a917d78e7110e3011bbff6d5 , < 548f2ff8ea5e0ce767ae3418d1ec5308990be87d (git)
Affected: 019cbd4a4feb3aa3a917d78e7110e3011bbff6d5 , < bcf34aa5082ee2343574bc3f4d1c126030913e54 (git)

Linux

Affected: 5.4
Unaffected: 0 , < 5.4 (semver)
Unaffected: 5.10.73 , ≤ 5.10.* (semver)
Unaffected: 5.14.12 , ≤ 5.14.* (semver)
Unaffected: 5.15 , ≤ * (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-X52V-QR6M-XX85

CVE-2020-36788 (GCVE-0-2020-36788)

Tags

Sightings

Nomenclature