GCVE Workshop - 22 September 2026 (14:00-18:00), Luxembourg Before The Vulnopticon Conference - Registration

CVE-2021-47447 (GCVE-0-2021-47447)

Vulnerability from cvelistv5 – Published: 2024-05-22 06:19 – Updated: 2026-08-05 08:47
VLAI
Title
drm/msm/a3xx: fix error handling in a3xx_gpu_init()
Summary
In the Linux kernel, the following vulnerability has been resolved: drm/msm/a3xx: fix error handling in a3xx_gpu_init() These error paths returned 1 on failure, instead of a negative error code. This would lead to an Oops in the caller. A second problem is that the check for "if (ret != -ENODATA)" did not work because "ret" was set to 1.
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 2024-05-22 15:54 UTC
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 5785dd7a8ef0de8049f40a1a109de6a1bf17b479 , < d59e44e7821a8f2bb6f2e846b9167397a5f01608 (git)
Affected: 5785dd7a8ef0de8049f40a1a109de6a1bf17b479 , < 3eda901995371d390ef82d0b6462f4ea8efbcfdf (git)
guessed Create a notification for this product.
Linux Linux Affected: 5.11
Unaffected: 0 , < 5.11 (semver)
Unaffected: 5.14.14 , ≤ 5.14.* (semver)
Unaffected: 5.15 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2021-47447",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-05-22T15:54:08.510506Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2024-06-04T17:14:50.049Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      },
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-04T05:39:59.478Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/d59e44e7821a8f2bb6f2e846b9167397a5f01608"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/3eda901995371d390ef82d0b6462f4ea8efbcfdf"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/gpu/drm/msm/adreno/a3xx_gpu.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "d59e44e7821a8f2bb6f2e846b9167397a5f01608",
              "status": "affected",
              "version": "5785dd7a8ef0de8049f40a1a109de6a1bf17b479",
              "versionType": "git"
            },
            {
              "lessThan": "3eda901995371d390ef82d0b6462f4ea8efbcfdf",
              "status": "affected",
              "version": "5785dd7a8ef0de8049f40a1a109de6a1bf17b479",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/gpu/drm/msm/adreno/a3xx_gpu.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.11"
            },
            {
              "lessThan": "5.11",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.14.*",
              "status": "unaffected",
              "version": "5.14.14",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "5.15",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.14.14",
                  "versionStartIncluding": "5.11",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15",
                  "versionStartIncluding": "5.11",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/msm/a3xx: fix error handling in a3xx_gpu_init()\n\nThese error paths returned 1 on failure, instead of a negative error\ncode.  This would lead to an Oops in the caller.  A second problem is\nthat the check for \"if (ret != -ENODATA)\" did not work because \"ret\" was\nset to 1."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 7.8,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "scenarios": [
            {
              "lang": "en",
              "value": "AV:L - The bug is in the MSM Adreno a3xx GPU bind/init path (adreno_bind\u2192a3xx_gpu_init) and is later exercised via local DRM open (msm_open\u2192adreno_load_gpu) or local PM/unbind callbacks on Qualcomm a3xx devices, not via network or adjacent-link protocols.\nAC:L - On affected configurations where of_icc_get fails (including the explicitly optional ocmem -ENODATA case), the wrong IS_ERR\u2192ERR_PTR(1) path is deterministic: bind incorrectly succeeds after destroying the GPU, and a subsequent DRM open reliably hits the dangling drvdata with no attacker-uncontrollable race.\nPR:L - Triggering the use path only requires opening the local DRM device (/dev/dri/renderD* or card node), which is available to an ordinary unprivileged user or Android app in the video/render group; per guidance, choose PR:L over PR:H.\nUI:N - The attacker opens the DRM device (or otherwise exercises the GPU path) themselves; no separate victim interaction is required.\nS:U - Impact is confined to the host kernel (oops or local privilege-escalation class memory unsafety) and does not cross a VM, IOMMU, or other security-authority boundary.\nC:H - a3xx_destroy frees the msm_gpu while platform drvdata still points at it (msm_gpu_cleanup did not clear drvdata in the vulnerable window), yielding a UAF; reclaiming that object enables arbitrary kernel read primitives, so Confidentiality is High.\nI:H - The UAF\u0027d msm_gpu contains function pointers (gpu-\u003efuncs) used by adreno_load_gpu/msm_gpu_hw_init and related paths; heap spraying the freed object provides a control-flow hijack / arbitrary write primitive, so Integrity is High.\nA:H - Using the dangling GPU pointer causes a kernel oops/panic (as described in the fix), which is a full availability impact under CVSS kernel guidance."
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-05T08:47:50.874Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/d59e44e7821a8f2bb6f2e846b9167397a5f01608"
        },
        {
          "url": "https://git.kernel.org/stable/c/3eda901995371d390ef82d0b6462f4ea8efbcfdf"
        }
      ],
      "title": "drm/msm/a3xx: fix error handling in a3xx_gpu_init()",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2021-47447",
    "datePublished": "2024-05-22T06:19:39.506Z",
    "dateReserved": "2024-05-21T14:58:30.832Z",
    "dateUpdated": "2026-08-05T08:47:50.874Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2021-47447",
      "date": "2026-09-20",
      "epss": "0.00206",
      "percentile": "0.11052"
    },
    "fkie_nvd": {
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/msm/a3xx: fix error handling in a3xx_gpu_init()\n\nThese error paths returned 1 on failure, instead of a negative error\ncode.  This would lead to an Oops in the caller.  A second problem is\nthat the check for \"if (ret != -ENODATA)\" did not work because \"ret\" was\nset to 1."
        },
        {
          "lang": "es",
          "value": "En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: drm/msm/a3xx: corrige el manejo de errores en a3xx_gpu_init() Estas rutas de error devolvieron 1 en caso de falla, en lugar de un c\u00f3digo de error negativo. Esto provocar\u00eda un Ups en la persona que llama. Un segundo problema es que la verificaci\u00f3n de \"if (ret! = -ENODATA)\" no funcion\u00f3 porque \"ret\" estaba establecido en 1."
        }
      ],
      "id": "CVE-2021-47447",
      "lastModified": "2024-11-21T06:36:09.950",
      "published": "2024-05-22T07:15:09.897",
      "references": [
        {
          "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
          "url": "https://git.kernel.org/stable/c/3eda901995371d390ef82d0b6462f4ea8efbcfdf"
        },
        {
          "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
          "url": "https://git.kernel.org/stable/c/d59e44e7821a8f2bb6f2e846b9167397a5f01608"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "url": "https://git.kernel.org/stable/c/3eda901995371d390ef82d0b6462f4ea8efbcfdf"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "url": "https://git.kernel.org/stable/c/d59e44e7821a8f2bb6f2e846b9167397a5f01608"
        }
      ],
      "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "vulnStatus": "Awaiting Analysis"
    },
    "nvd": {
      "cve": {
        "affected": [
          {
            "affectedData": [
              {
                "defaultStatus": "unaffected",
                "product": "Linux",
                "programFiles": [
                  "drivers/gpu/drm/msm/adreno/a3xx_gpu.c"
                ],
                "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                "vendor": "Linux",
                "versions": [
                  {
                    "lessThan": "d59e44e7821a8f2bb6f2e846b9167397a5f01608",
                    "status": "affected",
                    "version": "5785dd7a8ef0de8049f40a1a109de6a1bf17b479",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "3eda901995371d390ef82d0b6462f4ea8efbcfdf",
                    "status": "affected",
                    "version": "5785dd7a8ef0de8049f40a1a109de6a1bf17b479",
                    "versionType": "git"
                  }
                ]
              },
              {
                "defaultStatus": "affected",
                "product": "Linux",
                "programFiles": [
                  "drivers/gpu/drm/msm/adreno/a3xx_gpu.c"
                ],
                "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                "vendor": "Linux",
                "versions": [
                  {
                    "status": "affected",
                    "version": "5.11"
                  },
                  {
                    "lessThan": "5.11",
                    "status": "unaffected",
                    "version": "0",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "5.14.*",
                    "status": "unaffected",
                    "version": "5.14.14",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "*",
                    "status": "unaffected",
                    "version": "5.15",
                    "versionType": "original_commit_for_fix"
                  }
                ]
              }
            ],
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
          }
        ],
        "configurations": [
          {
            "nodes": [
              {
                "cpeMatch": [
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "BF43A331-D430-4B9D-A612-E63C62AE4A86",
                    "versionEndExcluding": "5.14.14",
                    "versionStartIncluding": "5.11",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:5.15:rc1:*:*:*:*:*:*",
                    "matchCriteriaId": "E46C74C6-B76B-4C94-A6A4-FD2FFF62D644",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:5.15:rc2:*:*:*:*:*:*",
                    "matchCriteriaId": "60134C3A-06E4-48C1-B04F-2903732A4E56",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:5.15:rc3:*:*:*:*:*:*",
                    "matchCriteriaId": "0460DA88-8FE1-46A2-9DDA-1F1ABA552E71",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:5.15:rc4:*:*:*:*:*:*",
                    "matchCriteriaId": "AF55383D-4DF2-45DC-93F7-571F4F978EAB",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:5.15:rc5:*:*:*:*:*:*",
                    "matchCriteriaId": "9E9481B2-8AA6-4CBD-B5D3-C10F51FF6D01",
                    "vulnerable": true
                  }
                ],
                "negate": false,
                "operator": "OR"
              }
            ]
          }
        ],
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/msm/a3xx: fix error handling in a3xx_gpu_init()\n\nThese error paths returned 1 on failure, instead of a negative error\ncode.  This would lead to an Oops in the caller.  A second problem is\nthat the check for \"if (ret != -ENODATA)\" did not work because \"ret\" was\nset to 1."
          },
          {
            "lang": "es",
            "value": "En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: drm/msm/a3xx: corrige el manejo de errores en a3xx_gpu_init() Estas rutas de error devolvieron 1 en caso de falla, en lugar de un c\u00f3digo de error negativo. Esto provocar\u00eda un Ups en la persona que llama. Un segundo problema es que la verificaci\u00f3n de \"if (ret! = -ENODATA)\" no funcion\u00f3 porque \"ret\" estaba establecido en 1."
          }
        ],
        "id": "CVE-2021-47447",
        "lastModified": "2026-08-04T10:17:03.647",
        "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": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
              "type": "Secondary"
            },
            {
              "cvssData": {
                "attackComplexity": "LOW",
                "attackVector": "LOCAL",
                "availabilityImpact": "HIGH",
                "baseScore": 5.5,
                "baseSeverity": "MEDIUM",
                "confidentialityImpact": "NONE",
                "integrityImpact": "NONE",
                "privilegesRequired": "LOW",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
                "version": "3.1"
              },
              "exploitabilityScore": 1.8,
              "impactScore": 3.6,
              "source": "nvd@nist.gov",
              "type": "Primary"
            }
          ],
          "ssvcV203": [
            {
              "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "ssvcData": {
                "id": "CVE-2021-47447",
                "options": [
                  {
                    "exploitation": "none"
                  },
                  {
                    "automatable": "no"
                  },
                  {
                    "technicalImpact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-05-22T15:54:08.510506Z",
                "version": "2.0.3"
              }
            }
          ]
        },
        "published": "2024-05-22T07:15:09.897",
        "references": [
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/3eda901995371d390ef82d0b6462f4ea8efbcfdf"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/d59e44e7821a8f2bb6f2e846b9167397a5f01608"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/3eda901995371d390ef82d0b6462f4ea8efbcfdf"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/d59e44e7821a8f2bb6f2e846b9167397a5f01608"
          }
        ],
        "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "vulnStatus": "Modified",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "NVD-CWE-Other"
              }
            ],
            "source": "nvd@nist.gov",
            "type": "Primary"
          }
        ]
      }
    },
    "redhat_vex": {
      "aggregate_severity": "Low",
      "current_release_date": "2026-08-04T23:03:07+00:00",
      "cve": "CVE-2021-47447",
      "id": "CVE-2021-47447",
      "initial_release_date": "2021-01-01T00:00:00+00:00",
      "product_status:known_not_affected": "198",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: drm/msm/a3xx: fix error handling in a3xx_gpu_init()",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2021/cve-2021-47447.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-09-11T16:58:28Z",
      "cve": "CVE-2021-47447",
      "id": "CVE-2021-47447",
      "initial_release_date": "2024-05-25T03:34:10Z",
      "product_status:known_affected": "275",
      "product_status:known_not_affected": "266",
      "product_status:recommended": "452",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2021-47447",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2021-47447.json",
      "version": "56"
    },
    "vulnrichment": {
      "containers": {
        "adp": [
          {
            "providerMetadata": {
              "dateUpdated": "2024-08-04T05:39:59.478Z",
              "orgId": "af854a3a-2127-422b-91ae-364da2661108",
              "shortName": "CVE"
            },
            "references": [
              {
                "tags": [
                  "x_transferred"
                ],
                "url": "https://git.kernel.org/stable/c/d59e44e7821a8f2bb6f2e846b9167397a5f01608"
              },
              {
                "tags": [
                  "x_transferred"
                ],
                "url": "https://git.kernel.org/stable/c/3eda901995371d390ef82d0b6462f4ea8efbcfdf"
              }
            ],
            "title": "CVE Program Container"
          },
          {
            "metrics": [
              {
                "other": {
                  "content": {
                    "id": "CVE-2021-47447",
                    "options": [
                      {
                        "Exploitation": "none"
                      },
                      {
                        "Automatable": "no"
                      },
                      {
                        "Technical Impact": "partial"
                      }
                    ],
                    "role": "CISA Coordinator",
                    "timestamp": "2024-05-22T15:54:08.510506Z",
                    "version": "2.0.3"
                  },
                  "type": "ssvc"
                }
              }
            ],
            "providerMetadata": {
              "dateUpdated": "2024-05-23T19:01:25.578Z",
              "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "shortName": "CISA-ADP"
            },
            "title": "CISA ADP Vulnrichment"
          }
        ],
        "cna": {
          "affected": [
            {
              "defaultStatus": "unaffected",
              "product": "Linux",
              "programFiles": [
                "drivers/gpu/drm/msm/adreno/a3xx_gpu.c"
              ],
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "vendor": "Linux",
              "versions": [
                {
                  "lessThan": "d59e44e7821a8f2bb6f2e846b9167397a5f01608",
                  "status": "affected",
                  "version": "5785dd7a8ef0de8049f40a1a109de6a1bf17b479",
                  "versionType": "git"
                },
                {
                  "lessThan": "3eda901995371d390ef82d0b6462f4ea8efbcfdf",
                  "status": "affected",
                  "version": "5785dd7a8ef0de8049f40a1a109de6a1bf17b479",
                  "versionType": "git"
                }
              ]
            },
            {
              "defaultStatus": "affected",
              "product": "Linux",
              "programFiles": [
                "drivers/gpu/drm/msm/adreno/a3xx_gpu.c"
              ],
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "vendor": "Linux",
              "versions": [
                {
                  "status": "affected",
                  "version": "5.11"
                },
                {
                  "lessThan": "5.11",
                  "status": "unaffected",
                  "version": "0",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "5.14.*",
                  "status": "unaffected",
                  "version": "5.14.14",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "*",
                  "status": "unaffected",
                  "version": "5.15",
                  "versionType": "original_commit_for_fix"
                }
              ]
            }
          ],
          "cpeApplicability": [
            {
              "nodes": [
                {
                  "cpeMatch": [
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "5.14.14",
                      "versionStartIncluding": "5.11",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "5.15",
                      "versionStartIncluding": "5.11",
                      "vulnerable": true
                    }
                  ],
                  "negate": false,
                  "operator": "OR"
                }
              ]
            }
          ],
          "descriptions": [
            {
              "lang": "en",
              "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/msm/a3xx: fix error handling in a3xx_gpu_init()\n\nThese error paths returned 1 on failure, instead of a negative error\ncode.  This would lead to an Oops in the caller.  A second problem is\nthat the check for \"if (ret != -ENODATA)\" did not work because \"ret\" was\nset to 1."
            }
          ],
          "metrics": [
            {
              "cvssV3_1": {
                "baseScore": 7.8,
                "baseSeverity": "HIGH",
                "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                "version": "3.1"
              },
              "scenarios": [
                {
                  "lang": "en",
                  "value": "AV:L - The bug is in the MSM Adreno a3xx GPU bind/init path (adreno_bind\u2192a3xx_gpu_init) and is later exercised via local DRM open (msm_open\u2192adreno_load_gpu) or local PM/unbind callbacks on Qualcomm a3xx devices, not via network or adjacent-link protocols.\nAC:L - On affected configurations where of_icc_get fails (including the explicitly optional ocmem -ENODATA case), the wrong IS_ERR\u2192ERR_PTR(1) path is deterministic: bind incorrectly succeeds after destroying the GPU, and a subsequent DRM open reliably hits the dangling drvdata with no attacker-uncontrollable race.\nPR:L - Triggering the use path only requires opening the local DRM device (/dev/dri/renderD* or card node), which is available to an ordinary unprivileged user or Android app in the video/render group; per guidance, choose PR:L over PR:H.\nUI:N - The attacker opens the DRM device (or otherwise exercises the GPU path) themselves; no separate victim interaction is required.\nS:U - Impact is confined to the host kernel (oops or local privilege-escalation class memory unsafety) and does not cross a VM, IOMMU, or other security-authority boundary.\nC:H - a3xx_destroy frees the msm_gpu while platform drvdata still points at it (msm_gpu_cleanup did not clear drvdata in the vulnerable window), yielding a UAF; reclaiming that object enables arbitrary kernel read primitives, so Confidentiality is High.\nI:H - The UAF\u0027d msm_gpu contains function pointers (gpu-\u003efuncs) used by adreno_load_gpu/msm_gpu_hw_init and related paths; heap spraying the freed object provides a control-flow hijack / arbitrary write primitive, so Integrity is High.\nA:H - Using the dangling GPU pointer causes a kernel oops/panic (as described in the fix), which is a full availability impact under CVSS kernel guidance."
                }
              ]
            }
          ],
          "providerMetadata": {
            "dateUpdated": "2026-08-05T08:47:50.874Z",
            "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "shortName": "Linux"
          },
          "references": [
            {
              "url": "https://git.kernel.org/stable/c/d59e44e7821a8f2bb6f2e846b9167397a5f01608"
            },
            {
              "url": "https://git.kernel.org/stable/c/3eda901995371d390ef82d0b6462f4ea8efbcfdf"
            }
          ],
          "title": "drm/msm/a3xx: fix error handling in a3xx_gpu_init()",
          "x_generator": {
            "engine": "bippy-1.2.0"
          }
        }
      },
      "cveMetadata": {
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "assignerShortName": "Linux",
        "cveId": "CVE-2021-47447",
        "datePublished": "2024-05-22T06:19:39.506Z",
        "dateReserved": "2024-05-21T14:58:30.832Z",
        "dateUpdated": "2026-08-05T08:47:50.874Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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.


Detection rules are retrieved from Rulezet.


Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.