{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2025-68362",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2025-12-16T14:48:05.307Z",
        "datePublished": "2025-12-24T10:32:50.492Z",
        "dateUpdated": "2026-05-11T21:51:44.272Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-05-11T21:51:44.272Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: rtl818x: rtl8187: Fix potential buffer underflow in rtl8187_rx_cb()\n\nThe rtl8187_rx_cb() calculates the rx descriptor header address\nby subtracting its size from the skb tail pointer.\nHowever, it does not validate if the received packet\n(skb->len from urb->actual_length) is large enough to contain this\nheader.\n\nIf a truncated packet is received, this will lead to a buffer\nunderflow, reading memory before the start of the skb data area,\nand causing a kernel panic.\n\nAdd length checks for both rtl8187 and rtl8187b descriptor headers\nbefore attempting to access them, dropping the packet cleanly if the\ncheck fails."
                }
            ],
            "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/rtl818x/rtl8187/dev.c"
                    ],
                    "versions": [
                        {
                            "version": "6f7853f3cbe457067e9fe05461f56c7ea4ac488c",
                            "lessThan": "118e12bf3e4288cf845cd3759bd9d4c99f91aab5",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "6f7853f3cbe457067e9fe05461f56c7ea4ac488c",
                            "lessThan": "6a96bd0d94305fd04a6ac64446ec113bae289384",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "6f7853f3cbe457067e9fe05461f56c7ea4ac488c",
                            "lessThan": "e2f3ea15e804607e0a4a34a2f6c331c8750b68bc",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "6f7853f3cbe457067e9fe05461f56c7ea4ac488c",
                            "lessThan": "dc153401fb26c1640a2b279c47b65e1c416af276",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "6f7853f3cbe457067e9fe05461f56c7ea4ac488c",
                            "lessThan": "4758770a673c60d8f615809304d72e1432fa6355",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "6f7853f3cbe457067e9fe05461f56c7ea4ac488c",
                            "lessThan": "638d4148e166d114a4cd7becaae992ce1a815ed8",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "6f7853f3cbe457067e9fe05461f56c7ea4ac488c",
                            "lessThan": "5ebf0fe7eaef9f6173a4c6ea77c5353e21645d15",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "6f7853f3cbe457067e9fe05461f56c7ea4ac488c",
                            "lessThan": "b647d2574e4583c2e3b0ab35568f60c88e910840",
                            "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/rtl818x/rtl8187/dev.c"
                    ],
                    "versions": [
                        {
                            "version": "2.6.27",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "2.6.27",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.10.248",
                            "lessThanOrEqual": "5.10.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.15.198",
                            "lessThanOrEqual": "5.15.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.1.160",
                            "lessThanOrEqual": "6.1.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.6.120",
                            "lessThanOrEqual": "6.6.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.63",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.17.13",
                            "lessThanOrEqual": "6.17.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.2",
                            "lessThanOrEqual": "6.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.19",
                            "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": "2.6.27",
                                    "versionEndExcluding": "5.10.248"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "2.6.27",
                                    "versionEndExcluding": "5.15.198"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "2.6.27",
                                    "versionEndExcluding": "6.1.160"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "2.6.27",
                                    "versionEndExcluding": "6.6.120"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "2.6.27",
                                    "versionEndExcluding": "6.12.63"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "2.6.27",
                                    "versionEndExcluding": "6.17.13"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "2.6.27",
                                    "versionEndExcluding": "6.18.2"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "2.6.27",
                                    "versionEndExcluding": "6.19"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/118e12bf3e4288cf845cd3759bd9d4c99f91aab5"
                },
                {
                    "url": "https://git.kernel.org/stable/c/6a96bd0d94305fd04a6ac64446ec113bae289384"
                },
                {
                    "url": "https://git.kernel.org/stable/c/e2f3ea15e804607e0a4a34a2f6c331c8750b68bc"
                },
                {
                    "url": "https://git.kernel.org/stable/c/dc153401fb26c1640a2b279c47b65e1c416af276"
                },
                {
                    "url": "https://git.kernel.org/stable/c/4758770a673c60d8f615809304d72e1432fa6355"
                },
                {
                    "url": "https://git.kernel.org/stable/c/638d4148e166d114a4cd7becaae992ce1a815ed8"
                },
                {
                    "url": "https://git.kernel.org/stable/c/5ebf0fe7eaef9f6173a4c6ea77c5353e21645d15"
                },
                {
                    "url": "https://git.kernel.org/stable/c/b647d2574e4583c2e3b0ab35568f60c88e910840"
                }
            ],
            "title": "wifi: rtl818x: rtl8187: Fix potential buffer underflow in rtl8187_rx_cb()",
            "x_generator": {
                "engine": "bippy-1.2.0"
            }
        }
    }
}