fkie_nvd - fkie_cve-2021-4460

FKIE_CVE-2021-4460

Vulnerability from fkie_nvd - Published: 2025-10-01 12:15 - Updated: 2025-12-10 16:58

Severity ?

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

Summary

In the Linux kernel, the following vulnerability has been resolved: drm/amdkfd: Fix UBSAN shift-out-of-bounds warning If get_num_sdma_queues or get_num_xgmi_sdma_queues is 0, we end up doing a shift operation where the number of bits shifted equals number of bits in the operand. This behaviour is undefined. Set num_sdma_queues or num_xgmi_sdma_queues to ULLONG_MAX, if the count is >= number of bits in the operand. Bug: https://gitlab.freedesktop.org/drm/amd/-/issues/1472

References

URL	Tags
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/0c0356ef2498c1a250fe3846f30293f828737309	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/1874b0ef1426b873de94c61861e38f29a8df714c	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/3fdc5182700910a685d23df57d65166e8556a266	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/50e2fc36e72d4ad672032ebf646cecb48656efe0	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/9069b1b542de8f3bbffef868aff41521b21485cf	Patch

Impacted products

Vendor	Product	Version
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": "C5CD9030-BC07-4E5E-97CA-F7AC8E17FB90",
              "versionEndExcluding": "5.4.118",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "003E22D0-CA29-4338-8B35-0754C740074F",
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              "versionStartIncluding": "5.5",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "EEC03413-9760-46D4-AC1D-EB084A1D4111",
              "versionEndExcluding": "5.11.20",
              "versionStartIncluding": "5.11",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "F9D6B2DE-7E4A-4B3B-9AEE-3A2C5F23DA32",
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              "vulnerable": true
            }
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          "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/amdkfd: Fix UBSAN shift-out-of-bounds warning\n\nIf get_num_sdma_queues or get_num_xgmi_sdma_queues is 0, we end up\ndoing a shift operation where the number of bits shifted equals\nnumber of bits in the operand. This behaviour is undefined.\n\nSet num_sdma_queues or num_xgmi_sdma_queues to ULLONG_MAX, if the\ncount is \u003e= number of bits in the operand.\n\nBug: https://gitlab.freedesktop.org/drm/amd/-/issues/1472"
    }
  ],
  "id": "CVE-2021-4460",
  "lastModified": "2025-12-10T16:58:01.687",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 7.1,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 5.2,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2025-10-01T12:15:31.850",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
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    },
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    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-125"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}

CVE-2021-4460 (GCVE-0-2021-4460)

Vulnerability from cvelistv5 – Published: 2025-10-01 11:45 – Updated: 2025-12-20 08:50

Title

drm/amdkfd: Fix UBSAN shift-out-of-bounds warning

Summary

Severity ?

No CVSS data available.

Assigner

Linux

References

URL

Tags

	https://git.kernel.org/stable/c/0c0356ef2498c1a25…
	https://git.kernel.org/stable/c/1874b0ef1426b873d…
	https://git.kernel.org/stable/c/3fdc5182700910a68…
	https://git.kernel.org/stable/c/9069b1b542de8f3bb…
	https://git.kernel.org/stable/c/50e2fc36e72d4ad67…

Impacted products

Vendor

Product

Version

Linux

Affected: 4a488a7ad71401169cecee75dc94bcce642e2c53 , < 0c0356ef2498c1a250fe3846f30293f828737309 (git)
Affected: 4a488a7ad71401169cecee75dc94bcce642e2c53 , < 1874b0ef1426b873de94c61861e38f29a8df714c (git)
Affected: 4a488a7ad71401169cecee75dc94bcce642e2c53 , < 3fdc5182700910a685d23df57d65166e8556a266 (git)
Affected: 4a488a7ad71401169cecee75dc94bcce642e2c53 , < 9069b1b542de8f3bbffef868aff41521b21485cf (git)
Affected: 4a488a7ad71401169cecee75dc94bcce642e2c53 , < 50e2fc36e72d4ad672032ebf646cecb48656efe0 (git)

Linux

Affected: 3.19
Unaffected: 0 , < 3.19 (semver)
Unaffected: 5.4.118 , ≤ 5.4.* (semver)
Unaffected: 5.10.36 , ≤ 5.10.* (semver)
Unaffected: 5.11.20 , ≤ 5.11.* (semver)
Unaffected: 5.12.3 , ≤ 5.12.* (semver)
Unaffected: 5.13 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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            },
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          ]
        },
        {
          "defaultStatus": "affected",
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          "programFiles": [
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          ],
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          "versions": [
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            },
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              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
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              "versionType": "semver"
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              "versionType": "semver"
            },
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              "version": "5.11.20",
              "versionType": "semver"
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              "status": "unaffected",
              "version": "5.12.3",
              "versionType": "semver"
            },
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              "status": "unaffected",
              "version": "5.13",
              "versionType": "original_commit_for_fix"
            }
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        }
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      "cpeApplicability": [
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    "datePublished": "2025-10-01T11:45:19.050Z",
    "dateReserved": "2025-10-01T11:38:13.842Z",
    "dateUpdated": "2025-12-20T08:50:43.244Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

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-2021-4460

CVE-2021-4460 (GCVE-0-2021-4460)

Tags

Sightings

Nomenclature