Vulnerability-Lookup

FKIE_CVE-2022-50454

Vulnerability from fkie_nvd - Published: 2025-10-01 12:15 - Updated: 2026-01-16 19:24

Severity ?

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

Summary

In the Linux kernel, the following vulnerability has been resolved: drm/nouveau: fix a use-after-free in nouveau_gem_prime_import_sg_table() nouveau_bo_init() is backed by ttm_bo_init() and ferries its return code back to the caller. On failures, ttm will call nouveau_bo_del_ttm() and free the memory.Thus, when nouveau_bo_init() returns an error, the gem object has already been released. Then the call to nouveau_bo_ref() will use the freed "nvbo->bo" and lead to a use-after-free bug. We should delete the call to nouveau_bo_ref() to avoid the use-after-free.

References

URL	Tags
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/3aeda2fe6517cc52663d4ce3588dd43f0d4124a7	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/540dfd188ea2940582841c1c220bd035a7db0e51	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/56ee9577915dc06f55309901012a9ef68dbdb5a8	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/5d6093c49c098d86c7b136aba9922df44aeb6944	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/7d80473e9f12548ac05b36af4fb9ce80f2f73509	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/861f085f81fd569b02cc2c11165a9e6cca144424	Patch

Impacted products

Vendor	Product	Version
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*

JSON

To clipboard

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "C86E91CD-1AC4-4C91-8097-B6DD58212EE2",
              "versionEndExcluding": "5.4.220",
              "versionStartIncluding": "5.4",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "C495821C-2A71-4F09-BED8-6A6EB4C9BA27",
              "versionEndExcluding": "5.10.150",
              "versionStartIncluding": "5.5",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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              "matchCriteriaId": "19B4C3A4-E5C3-41DC-BB14-BE72858E7D35",
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              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
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  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/nouveau: fix a use-after-free in nouveau_gem_prime_import_sg_table()\n\nnouveau_bo_init() is backed by ttm_bo_init() and ferries its return code\nback to the caller. On failures, ttm will call nouveau_bo_del_ttm() and\nfree the memory.Thus, when nouveau_bo_init() returns an error, the gem\nobject has already been released. Then the call to nouveau_bo_ref() will\nuse the freed \"nvbo-\u003ebo\" and lead to a use-after-free bug.\n\nWe should delete the call to nouveau_bo_ref() to avoid the use-after-free."
    }
  ],
  "id": "CVE-2022-50454",
  "lastModified": "2026-01-16T19:24:04.770",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 7.8,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 5.9,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2025-10-01T12:15:38.510",
  "references": [
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      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
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    },
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    },
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    },
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      "tags": [
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    },
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    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-416"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}

CVE-2022-50454 (GCVE-0-2022-50454)

Vulnerability from cvelistv5 – Published: 2025-10-01 11:45 – Updated: 2025-10-01 11:45

Title

drm/nouveau: fix a use-after-free in nouveau_gem_prime_import_sg_table()

Summary

Severity ?

No CVSS data available.

Assigner

Linux

References

URL

Tags

	https://git.kernel.org/stable/c/56ee9577915dc06f5…
	https://git.kernel.org/stable/c/5d6093c49c098d86c…
	https://git.kernel.org/stable/c/861f085f81fd569b0…
	https://git.kernel.org/stable/c/3aeda2fe6517cc526…
	https://git.kernel.org/stable/c/7d80473e9f12548ac…
	https://git.kernel.org/stable/c/540dfd188ea294058…

Impacted products

Vendor

Product

Version

Linux

Affected: 019cbd4a4feb3aa3a917d78e7110e3011bbff6d5 , < 56ee9577915dc06f55309901012a9ef68dbdb5a8 (git)
Affected: 019cbd4a4feb3aa3a917d78e7110e3011bbff6d5 , < 5d6093c49c098d86c7b136aba9922df44aeb6944 (git)
Affected: 019cbd4a4feb3aa3a917d78e7110e3011bbff6d5 , < 861f085f81fd569b02cc2c11165a9e6cca144424 (git)
Affected: 019cbd4a4feb3aa3a917d78e7110e3011bbff6d5 , < 3aeda2fe6517cc52663d4ce3588dd43f0d4124a7 (git)
Affected: 019cbd4a4feb3aa3a917d78e7110e3011bbff6d5 , < 7d80473e9f12548ac05b36af4fb9ce80f2f73509 (git)
Affected: 019cbd4a4feb3aa3a917d78e7110e3011bbff6d5 , < 540dfd188ea2940582841c1c220bd035a7db0e51 (git)

Linux

Affected: 5.4
Unaffected: 0 , < 5.4 (semver)
Unaffected: 5.4.220 , ≤ 5.4.* (semver)
Unaffected: 5.10.150 , ≤ 5.10.* (semver)
Unaffected: 5.15.75 , ≤ 5.15.* (semver)
Unaffected: 5.19.17 , ≤ 5.19.* (semver)
Unaffected: 6.0.3 , ≤ 6.0.* (semver)
Unaffected: 6.1 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/gpu/drm/nouveau/nouveau_prime.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
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        }
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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

FKIE_CVE-2022-50454

CVE-2022-50454 (GCVE-0-2022-50454)

Tags

Sightings

Nomenclature