{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2023-54214",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2025-12-30T12:06:44.500Z",
        "datePublished": "2025-12-30T12:11:11.383Z",
        "dateUpdated": "2026-05-11T19:57:39.407Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-05-11T19:57:39.407Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: L2CAP: Fix potential user-after-free\n\nThis fixes all instances of which requires to allocate a buffer calling\nalloc_skb which may release the chan lock and reacquire later which\nmakes it possible that the chan is disconnected in the meantime."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "net/bluetooth/l2cap_core.c",
                        "net/bluetooth/l2cap_sock.c"
                    ],
                    "versions": [
                        {
                            "version": "a6a5568c03c4805d4d250f6bd9d468eeeb4ea059",
                            "lessThan": "b2fde8cb2a25125111f2144604e0e7c0ebcc4bba",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "a6a5568c03c4805d4d250f6bd9d468eeeb4ea059",
                            "lessThan": "a6a7d1541fefddf7ca0cfb34c1bff63ff809cc49",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "a6a5568c03c4805d4d250f6bd9d468eeeb4ea059",
                            "lessThan": "60aaccf16d1e099c16bebfb96428ae762cb528f7",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "a6a5568c03c4805d4d250f6bd9d468eeeb4ea059",
                            "lessThan": "b8ed41cc04fb74005aa51d17865ca3d022760335",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "a6a5568c03c4805d4d250f6bd9d468eeeb4ea059",
                            "lessThan": "31a288a4df7f6a28e65da22a4ab2add4a963738e",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "a6a5568c03c4805d4d250f6bd9d468eeeb4ea059",
                            "lessThan": "64e28ecf44e46de9f01915a4146706a21c3469d2",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "a6a5568c03c4805d4d250f6bd9d468eeeb4ea059",
                            "lessThan": "994e3e18908f5c4a12d07b44018e6aa85f071048",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "a6a5568c03c4805d4d250f6bd9d468eeeb4ea059",
                            "lessThan": "df5703348813235874d851934e957c3723d71644",
                            "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/bluetooth/l2cap_core.c",
                        "net/bluetooth/l2cap_sock.c"
                    ],
                    "versions": [
                        {
                            "version": "3.5",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "3.5",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "4.14.308",
                            "lessThanOrEqual": "4.14.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "4.19.276",
                            "lessThanOrEqual": "4.19.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.4.235",
                            "lessThanOrEqual": "5.4.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.10.173",
                            "lessThanOrEqual": "5.10.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.15.99",
                            "lessThanOrEqual": "5.15.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.1.16",
                            "lessThanOrEqual": "6.1.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.2.3",
                            "lessThanOrEqual": "6.2.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.3",
                            "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": "3.5",
                                    "versionEndExcluding": "4.14.308"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "3.5",
                                    "versionEndExcluding": "4.19.276"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "3.5",
                                    "versionEndExcluding": "5.4.235"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "3.5",
                                    "versionEndExcluding": "5.10.173"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "3.5",
                                    "versionEndExcluding": "5.15.99"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "3.5",
                                    "versionEndExcluding": "6.1.16"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "3.5",
                                    "versionEndExcluding": "6.2.3"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "3.5",
                                    "versionEndExcluding": "6.3"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/b2fde8cb2a25125111f2144604e0e7c0ebcc4bba"
                },
                {
                    "url": "https://git.kernel.org/stable/c/a6a7d1541fefddf7ca0cfb34c1bff63ff809cc49"
                },
                {
                    "url": "https://git.kernel.org/stable/c/60aaccf16d1e099c16bebfb96428ae762cb528f7"
                },
                {
                    "url": "https://git.kernel.org/stable/c/b8ed41cc04fb74005aa51d17865ca3d022760335"
                },
                {
                    "url": "https://git.kernel.org/stable/c/31a288a4df7f6a28e65da22a4ab2add4a963738e"
                },
                {
                    "url": "https://git.kernel.org/stable/c/64e28ecf44e46de9f01915a4146706a21c3469d2"
                },
                {
                    "url": "https://git.kernel.org/stable/c/994e3e18908f5c4a12d07b44018e6aa85f071048"
                },
                {
                    "url": "https://git.kernel.org/stable/c/df5703348813235874d851934e957c3723d71644"
                }
            ],
            "title": "Bluetooth: L2CAP: Fix potential user-after-free",
            "x_generator": {
                "engine": "bippy-1.2.0"
            }
        }
    }
}