{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-97516",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-09-24T16:01:01.152Z",
        "datePublished": "2026-09-24T16:05:14.263Z",
        "dateUpdated": "2026-10-03T10:59:10.452Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-10-03T10:59:10.452Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: rtw88: Add NULL check for chip->edcca_th in rtw_fw_adaptivity_result()\n\nIt was recently reported that rtw_fw_adaptivity_result()\nin fw.c dereferences rtwdev->chip->edcca_th without\na NULL check. The issue is that devices with the\n8821CE chip don't define edcca_th in their chip\ninfo. As a result, when rtw_fw_adaptivity_result()\ntries to dereference it, the kernel triggers an oops.\n\nAdd a NULL check for edcca_th before dereferencing\nit in rtw_fw_adaptivity_result() in fw.c. Placing\nthe check at the function entry avoids logging any\ngarbage values.\n\nThis change does not address the root cause for\nthis behavior, but it prevents the NULL dereference\nand the resulting oops while a more permanent solution\nis developed.\n\nTested on a 8822CE chip which defines edcca_th, so\nthis issue is not present on it, but it still uses\nthis driver and I can verify there are no regressions."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/net/wireless/realtek/rtw88/fw.c"
                    ],
                    "versions": [
                        {
                            "version": "fe7bc23a8c5eba8a49061c1d15d0a9d45ef18130",
                            "lessThan": "a8cdb18ef80d67790d8611ba94ae3d81901c9e04",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "fe7bc23a8c5eba8a49061c1d15d0a9d45ef18130",
                            "lessThan": "0b58a5ac9170a6f5e6425f8e1a4b3e1d9c2bf53d",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "fe7bc23a8c5eba8a49061c1d15d0a9d45ef18130",
                            "lessThan": "6fa23cafaf30f4877e357f8eebcff00dff4aa9cb",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "fe7bc23a8c5eba8a49061c1d15d0a9d45ef18130",
                            "lessThan": "1d1f250432cd8704c3c125168887f9724021c81a",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "fe7bc23a8c5eba8a49061c1d15d0a9d45ef18130",
                            "lessThan": "d5e6f353ce1e1c25b8458ea390ed09d2377412c5",
                            "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/net/wireless/realtek/rtw88/fw.c"
                    ],
                    "versions": [
                        {
                            "version": "5.16",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "5.16",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.1.189",
                            "lessThanOrEqual": "6.1.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.6.158",
                            "lessThanOrEqual": "6.6.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.111",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.53",
                            "lessThanOrEqual": "6.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.2",
                            "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": "5.16",
                                    "versionEndExcluding": "6.1.189"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.16",
                                    "versionEndExcluding": "6.6.158"
                                },
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                                    "versionStartIncluding": "5.16",
                                    "versionEndExcluding": "6.12.111"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.16",
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                                },
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                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.16",
                                    "versionEndExcluding": "7.2"
                                }
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                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/a8cdb18ef80d67790d8611ba94ae3d81901c9e04"
                },
                {
                    "url": "https://git.kernel.org/stable/c/0b58a5ac9170a6f5e6425f8e1a4b3e1d9c2bf53d"
                },
                {
                    "url": "https://git.kernel.org/stable/c/6fa23cafaf30f4877e357f8eebcff00dff4aa9cb"
                },
                {
                    "url": "https://git.kernel.org/stable/c/1d1f250432cd8704c3c125168887f9724021c81a"
                },
                {
                    "url": "https://git.kernel.org/stable/c/d5e6f353ce1e1c25b8458ea390ed09d2377412c5"
                }
            ],
            "title": "wifi: rtw88: Add NULL check for chip->edcca_th in rtw_fw_adaptivity_result()",
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