{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-98482",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-09-25T10:25:14.352Z",
        "datePublished": "2026-10-18T15:15:56.227Z",
        "dateUpdated": "2026-10-19T09:20:19.712Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-10-19T09:20:19.712Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnfc: llcp: drop truncated I/RR/RNR PDUs in nfc_llcp_recv_hdlc()\n\nnfc_llcp_recv_hdlc() reads the sequence byte skb->data[2], via\nnfc_llcp_ns()/nfc_llcp_nr(), before any length check. The receive path\nonly guarantees the two-byte LLCP header -- __nfc_llcp_recv() checks it\nwith pskb_may_pull() and nfc_llcp_recv_agf() admits two-byte inner PDUs\n-- so a two-byte I, RR or RNR PDU reads one byte of uninitialised skb\ntailroom. The byte becomes N(R)/N(S); a peer can already set those with\na well-formed PDU, so this is acting on uninitialised memory, not new\npeer control.\n\nGuard the read with pskb_may_pull(), as commit 95674f506c63 (\"nfc: llcp:\nreject PDUs shorter than the LLCP header\") did for the two-byte header,\nso the sequence byte is present and linear before it is read. RR and RNR\nPDUs are LLCP_HEADER_SIZE + LLCP_SEQUENCE_SIZE bytes and an I PDU is\nlonger, so no valid frame is rejected; a truncated PDU is malformed, so\nreturn without a DM reply."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "net/nfc/llcp_core.c"
                    ],
                    "versions": [
                        {
                            "version": "d646960f7986fefb460a2b062d5ccc8ccfeacc3a",
                            "lessThan": "3afdbebfee2ef7e9510880868cfb482cbffe6836",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "d646960f7986fefb460a2b062d5ccc8ccfeacc3a",
                            "lessThan": "9b4086eb67a9a3b1ce69fef1b6793827363703ce",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "d646960f7986fefb460a2b062d5ccc8ccfeacc3a",
                            "lessThan": "51b6d73373589abb9de4d84767b0db1bc8d395d9",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "d646960f7986fefb460a2b062d5ccc8ccfeacc3a",
                            "lessThan": "066205553a0106565bcede934f5721c25ebd6e4e",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "d646960f7986fefb460a2b062d5ccc8ccfeacc3a",
                            "lessThan": "18f60ee882403d5b48097f5f6ae45f794e4cc643",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "d646960f7986fefb460a2b062d5ccc8ccfeacc3a",
                            "lessThan": "810f204ef8f61f0c930cf6b3280050b3ee6a8ae7",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "d646960f7986fefb460a2b062d5ccc8ccfeacc3a",
                            "lessThan": "744e61bd06188d8bb068c26a461c252f242b05c9",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "d646960f7986fefb460a2b062d5ccc8ccfeacc3a",
                            "lessThan": "273f9d667cde649f8de9d72b1303cc2f4b658c50",
                            "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/nfc/llcp_core.c"
                    ],
                    "versions": [
                        {
                            "version": "3.3",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "3.3",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.10.271",
                            "lessThanOrEqual": "5.10.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.15.222",
                            "lessThanOrEqual": "5.15.*",
                            "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": "6.12.112",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.55",
                            "lessThanOrEqual": "6.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.2.9",
                            "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": "3.3",
                                    "versionEndExcluding": "5.10.271"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "3.3",
                                    "versionEndExcluding": "5.15.222"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "3.3",
                                    "versionEndExcluding": "6.1.189"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "3.3",
                                    "versionEndExcluding": "6.6.158"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "3.3",
                                    "versionEndExcluding": "6.12.112"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "3.3",
                                    "versionEndExcluding": "6.18.55"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "3.3",
                                    "versionEndExcluding": "7.2.9"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "3.3",
                                    "versionEndExcluding": "7.3"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/3afdbebfee2ef7e9510880868cfb482cbffe6836"
                },
                {
                    "url": "https://git.kernel.org/stable/c/9b4086eb67a9a3b1ce69fef1b6793827363703ce"
                },
                {
                    "url": "https://git.kernel.org/stable/c/51b6d73373589abb9de4d84767b0db1bc8d395d9"
                },
                {
                    "url": "https://git.kernel.org/stable/c/066205553a0106565bcede934f5721c25ebd6e4e"
                },
                {
                    "url": "https://git.kernel.org/stable/c/18f60ee882403d5b48097f5f6ae45f794e4cc643"
                },
                {
                    "url": "https://git.kernel.org/stable/c/810f204ef8f61f0c930cf6b3280050b3ee6a8ae7"
                },
                {
                    "url": "https://git.kernel.org/stable/c/744e61bd06188d8bb068c26a461c252f242b05c9"
                },
                {
                    "url": "https://git.kernel.org/stable/c/273f9d667cde649f8de9d72b1303cc2f4b658c50"
                }
            ],
            "title": "nfc: llcp: drop truncated I/RR/RNR PDUs in nfc_llcp_recv_hdlc()",
            "x_generator": {
                "engine": "bippy-1.2.0"
            }
        }
    }
}