{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2025-39937",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2025-04-16T07:20:57.148Z",
        "datePublished": "2025-10-04T07:31:00.879Z",
        "dateUpdated": "2026-05-11T21:39:18.519Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-05-11T21:39:18.519Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: rfkill: gpio: Fix crash due to dereferencering uninitialized pointer\n\nSince commit 7d5e9737efda (\"net: rfkill: gpio: get the name and type from\ndevice property\") rfkill_find_type() gets called with the possibly\nuninitialized \"const char *type_name;\" local variable.\n\nOn x86 systems when rfkill-gpio binds to a \"BCM4752\" or \"LNV4752\"\nacpi_device, the rfkill->type is set based on the ACPI acpi_device_id:\n\n        rfkill->type = (unsigned)id->driver_data;\n\nand there is no \"type\" property so device_property_read_string() will fail\nand leave type_name uninitialized, leading to a potential crash.\n\nrfkill_find_type() does accept a NULL pointer, fix the potential crash\nby initializing type_name to NULL.\n\nNote likely sofar this has not been caught because:\n\n1. Not many x86 machines actually have a \"BCM4752\"/\"LNV4752\" acpi_device\n2. The stack happened to contain NULL where type_name is stored"
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "net/rfkill/rfkill-gpio.c"
                    ],
                    "versions": [
                        {
                            "version": "7d5e9737efda16535e5b54bd627ef4881d11d31f",
                            "lessThan": "184f608a68f96794e8fe58cd5535014d53622cde",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "7d5e9737efda16535e5b54bd627ef4881d11d31f",
                            "lessThan": "8793e7a8e1b60131a825457174ed6398111daeb7",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "7d5e9737efda16535e5b54bd627ef4881d11d31f",
                            "lessThan": "ada2282259243387e6b6e89239aeb4897e62f051",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "7d5e9737efda16535e5b54bd627ef4881d11d31f",
                            "lessThan": "47ade5f9d70b23a119ec20b1c6504864b2543a79",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "7d5e9737efda16535e5b54bd627ef4881d11d31f",
                            "lessThan": "689aee35ce671aab752f159e5c8e66d7685e6887",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "7d5e9737efda16535e5b54bd627ef4881d11d31f",
                            "lessThan": "21ba85d9d508422ca9e6698463ff9357c928c22d",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "7d5e9737efda16535e5b54bd627ef4881d11d31f",
                            "lessThan": "21a39b958b4bcf44f7674bfbbe1bbb8cad0d842d",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "7d5e9737efda16535e5b54bd627ef4881d11d31f",
                            "lessThan": "b6f56a44e4c1014b08859dcf04ed246500e310e5",
                            "status": "affected",
                            "versionType": "git"
                        }
                    ]
                },
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "affected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "net/rfkill/rfkill-gpio.c"
                    ],
                    "versions": [
                        {
                            "version": "4.6",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "4.6",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.4.300",
                            "lessThanOrEqual": "5.4.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.10.245",
                            "lessThanOrEqual": "5.10.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.15.194",
                            "lessThanOrEqual": "5.15.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.1.154",
                            "lessThanOrEqual": "6.1.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.6.108",
                            "lessThanOrEqual": "6.6.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.49",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.16.9",
                            "lessThanOrEqual": "6.16.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.17",
                            "lessThanOrEqual": "*",
                            "status": "unaffected",
                            "versionType": "original_commit_for_fix"
                        }
                    ]
                }
            ],
            "cpeApplicability": [
                {
                    "nodes": [
                        {
                            "operator": "OR",
                            "negate": false,
                            "cpeMatch": [
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "4.6",
                                    "versionEndExcluding": "5.4.300"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "4.6",
                                    "versionEndExcluding": "5.10.245"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "4.6",
                                    "versionEndExcluding": "5.15.194"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "4.6",
                                    "versionEndExcluding": "6.1.154"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "4.6",
                                    "versionEndExcluding": "6.6.108"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "4.6",
                                    "versionEndExcluding": "6.12.49"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "4.6",
                                    "versionEndExcluding": "6.16.9"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "4.6",
                                    "versionEndExcluding": "6.17"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/184f608a68f96794e8fe58cd5535014d53622cde"
                },
                {
                    "url": "https://git.kernel.org/stable/c/8793e7a8e1b60131a825457174ed6398111daeb7"
                },
                {
                    "url": "https://git.kernel.org/stable/c/ada2282259243387e6b6e89239aeb4897e62f051"
                },
                {
                    "url": "https://git.kernel.org/stable/c/47ade5f9d70b23a119ec20b1c6504864b2543a79"
                },
                {
                    "url": "https://git.kernel.org/stable/c/689aee35ce671aab752f159e5c8e66d7685e6887"
                },
                {
                    "url": "https://git.kernel.org/stable/c/21ba85d9d508422ca9e6698463ff9357c928c22d"
                },
                {
                    "url": "https://git.kernel.org/stable/c/21a39b958b4bcf44f7674bfbbe1bbb8cad0d842d"
                },
                {
                    "url": "https://git.kernel.org/stable/c/b6f56a44e4c1014b08859dcf04ed246500e310e5"
                }
            ],
            "title": "net: rfkill: gpio: Fix crash due to dereferencering uninitialized pointer",
            "x_generator": {
                "engine": "bippy-1.2.0"
            }
        }
    }
}