{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.1",
    "cveMetadata": {
        "cveId": "CVE-2021-47386",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2024-05-21T14:58:30.813Z",
        "datePublished": "2024-05-21T15:03:46.274Z",
        "dateUpdated": "2024-08-04T05:39:59.316Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2024-05-29T05:07:03.076Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nhwmon: (w83791d) Fix NULL pointer dereference by removing unnecessary structure field\n\nIf driver read val value sufficient for\n(val & 0x08) && (!(val & 0x80)) && ((val & 0x7) == ((val >> 4) & 0x7))\nfrom device then Null pointer dereference occurs.\n(It is possible if tmp = 0b0xyz1xyz, where same literals mean same numbers)\nAlso lm75[] does not serve a purpose anymore after switching to\ndevm_i2c_new_dummy_device() in w83791d_detect_subclients().\n\nThe patch fixes possible NULL pointer dereference by removing lm75[].\n\nFound by Linux Driver Verification project (linuxtesting.org).\n\n[groeck: Dropped unnecessary continuation lines, fixed multi-line alignment]"
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/hwmon/w83791d.c"
                    ],
                    "versions": [
                        {
                            "version": "1da177e4c3f4",
                            "lessThan": "44d3c480e4e2",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "1da177e4c3f4",
                            "lessThan": "516d90550390",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "1da177e4c3f4",
                            "lessThan": "16887ae4e3de",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "1da177e4c3f4",
                            "lessThan": "943c15ac1b84",
                            "status": "affected",
                            "versionType": "git"
                        }
                    ]
                },
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "affected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/hwmon/w83791d.c"
                    ],
                    "versions": [
                        {
                            "version": "5.4.151",
                            "lessThanOrEqual": "5.4.*",
                            "status": "unaffected",
                            "versionType": "custom"
                        },
                        {
                            "version": "5.10.71",
                            "lessThanOrEqual": "5.10.*",
                            "status": "unaffected",
                            "versionType": "custom"
                        },
                        {
                            "version": "5.14.10",
                            "lessThanOrEqual": "5.14.*",
                            "status": "unaffected",
                            "versionType": "custom"
                        },
                        {
                            "version": "5.15",
                            "lessThanOrEqual": "*",
                            "status": "unaffected",
                            "versionType": "original_commit_for_fix"
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/44d3c480e4e2a75bf6296a18b4356157991ccd80"
                },
                {
                    "url": "https://git.kernel.org/stable/c/516d9055039017a20a698103be2b556b4c976bb8"
                },
                {
                    "url": "https://git.kernel.org/stable/c/16887ae4e3defd2c4e7913b6c539f33eaf4eac5c"
                },
                {
                    "url": "https://git.kernel.org/stable/c/943c15ac1b84d378da26bba41c83c67e16499ac4"
                }
            ],
            "title": "hwmon: (w83791d) Fix NULL pointer dereference by removing unnecessary structure field",
            "x_generator": {
                "engine": "bippy-a5840b7849dd"
            }
        },
        "adp": [
            {
                "title": "CISA ADP Vulnrichment",
                "metrics": [
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "id": "CVE-2021-47386",
                                "role": "CISA Coordinator",
                                "options": [
                                    {
                                        "Exploitation": "none"
                                    },
                                    {
                                        "Automatable": "no"
                                    },
                                    {
                                        "Technical Impact": "partial"
                                    }
                                ],
                                "version": "2.0.3",
                                "timestamp": "2024-05-28T18:28:32.870309Z"
                            }
                        }
                    }
                ],
                "providerMetadata": {
                    "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
                    "shortName": "CISA-ADP",
                    "dateUpdated": "2024-06-04T17:14:50.477Z"
                }
            },
            {
                "providerMetadata": {
                    "orgId": "af854a3a-2127-422b-91ae-364da2661108",
                    "shortName": "CVE",
                    "dateUpdated": "2024-08-04T05:39:59.316Z"
                },
                "title": "CVE Program Container",
                "references": [
                    {
                        "url": "https://git.kernel.org/stable/c/44d3c480e4e2a75bf6296a18b4356157991ccd80",
                        "tags": [
                            "x_transferred"
                        ]
                    },
                    {
                        "url": "https://git.kernel.org/stable/c/516d9055039017a20a698103be2b556b4c976bb8",
                        "tags": [
                            "x_transferred"
                        ]
                    },
                    {
                        "url": "https://git.kernel.org/stable/c/16887ae4e3defd2c4e7913b6c539f33eaf4eac5c",
                        "tags": [
                            "x_transferred"
                        ]
                    },
                    {
                        "url": "https://git.kernel.org/stable/c/943c15ac1b84d378da26bba41c83c67e16499ac4",
                        "tags": [
                            "x_transferred"
                        ]
                    }
                ]
            }
        ]
    }
}