{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-93163",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-09-17T16:02:15.089Z",
        "datePublished": "2026-09-17T16:11:56.570Z",
        "dateUpdated": "2026-10-21T12:52:06.483Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-10-21T12:52:06.483Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nhwrng: core - fix rng list on registration error\n\nhwrng_register(rng) does the following:\n\n1. Checks if rng has name and read methods set\n2. Checks if the name already exists\n3. Adds rng to global rng_list\n4. May try to set rng to current_rng\n\nIf step 4 fails, it returns an error. However, it does not remove the\nrng from rng_list, causing a dangling reference which can result in\nuse-after-free if the caller frees rng, since registration failed.\n\nAdd a list_del_init() cleanup step."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/char/hw_random/core.c"
                    ],
                    "versions": [
                        {
                            "version": "2bbb6983887fefc8026beab01198d30f47b7bd22",
                            "lessThan": "e37c67f768234e14cd6ea3b081568dd915c5b67e",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "2bbb6983887fefc8026beab01198d30f47b7bd22",
                            "lessThan": "de4f1bcb61a73cc896decdbd27d61a34add93b53",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "2bbb6983887fefc8026beab01198d30f47b7bd22",
                            "lessThan": "cf293c9c7424de0d04b51367d07f40570ce80231",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "2bbb6983887fefc8026beab01198d30f47b7bd22",
                            "lessThan": "bee8d1fcdc8f389b595b0a4cf6fe8440f499458a",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "2bbb6983887fefc8026beab01198d30f47b7bd22",
                            "lessThan": "3a5834db2b1ce25649f330e78efe1ccde78967fd",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "42802952a2725f85f7e36ee3b29593af5fe87197",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "4.9.320",
                            "lessThan": "4.10",
                            "status": "affected",
                            "versionType": "semver"
                        }
                    ]
                },
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "affected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/char/hw_random/core.c"
                    ],
                    "versions": [
                        {
                            "version": "4.14",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "4.14",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.6.160",
                            "lessThanOrEqual": "6.6.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.110",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.52",
                            "lessThanOrEqual": "6.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.2.6",
                            "lessThanOrEqual": "7.2.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.3",
                            "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": "4.14",
                                    "versionEndExcluding": "6.6.160"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "4.14",
                                    "versionEndExcluding": "6.12.110"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "4.14",
                                    "versionEndExcluding": "6.18.52"
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                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "4.14",
                                    "versionEndExcluding": "7.2.6"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "4.14",
                                    "versionEndExcluding": "7.3"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "4.9.320"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/e37c67f768234e14cd6ea3b081568dd915c5b67e"
                },
                {
                    "url": "https://git.kernel.org/stable/c/de4f1bcb61a73cc896decdbd27d61a34add93b53"
                },
                {
                    "url": "https://git.kernel.org/stable/c/cf293c9c7424de0d04b51367d07f40570ce80231"
                },
                {
                    "url": "https://git.kernel.org/stable/c/bee8d1fcdc8f389b595b0a4cf6fe8440f499458a"
                },
                {
                    "url": "https://git.kernel.org/stable/c/3a5834db2b1ce25649f330e78efe1ccde78967fd"
                }
            ],
            "title": "hwrng: core - fix rng list on registration error",
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}