{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-72238",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-08-09T03:40:39.914Z",
        "datePublished": "2026-08-15T05:54:27.424Z",
        "dateUpdated": "2026-08-17T05:10:56.018Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-08-17T05:10:56.018Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nx86/boot: Validate console=uart8250 baud rate to fix early boot hang\n\nWhen the baud rate is empty, 0, invalid, or overflows to 0 when stored\nas an int, the system will hang during early boot because of a division\nby zero in early_serial_init().\n\nFall back to DEFAULT_BAUD when the resulting baud rate is 0 to prevent\nan early system hang."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "arch/x86/boot/early_serial_console.c"
                    ],
                    "versions": [
                        {
                            "version": "ce0aa5dd20e44372f9617dd67c984f41fcdbed88",
                            "lessThan": "c1a276a731d02cbb728d0530f327a68728f2d8b0",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "ce0aa5dd20e44372f9617dd67c984f41fcdbed88",
                            "lessThan": "24fbed0a2a45f5f379ef2b53bd2abe58be1142ad",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "ce0aa5dd20e44372f9617dd67c984f41fcdbed88",
                            "lessThan": "efa96a22613b86e05cd81229ce0be411c1a4a79a",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "ce0aa5dd20e44372f9617dd67c984f41fcdbed88",
                            "lessThan": "9a77a7639dfdc3eca417cd37620ce64da79c80c4",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "ce0aa5dd20e44372f9617dd67c984f41fcdbed88",
                            "lessThan": "b4d05032e9af7137eab8f3af2855073f896ca843",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "ce0aa5dd20e44372f9617dd67c984f41fcdbed88",
                            "lessThan": "f7c67c97b37c11f2a95c204092fb8159f2779e8f",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "ce0aa5dd20e44372f9617dd67c984f41fcdbed88",
                            "lessThan": "4dad7e870c7e5178f71b5e1e4f67934b9e8cc207",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "ce0aa5dd20e44372f9617dd67c984f41fcdbed88",
                            "lessThan": "ffa0aa5b625fe0bed7463ac613f8b06676ff4542",
                            "status": "affected",
                            "versionType": "git"
                        }
                    ]
                },
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "affected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "arch/x86/boot/early_serial_console.c"
                    ],
                    "versions": [
                        {
                            "version": "2.6.36",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "2.6.36",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.10.261",
                            "lessThanOrEqual": "5.10.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.15.212",
                            "lessThanOrEqual": "5.15.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.1.178",
                            "lessThanOrEqual": "6.1.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.6.145",
                            "lessThanOrEqual": "6.6.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.97",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.40",
                            "lessThanOrEqual": "6.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.1.5",
                            "lessThanOrEqual": "7.1.*",
                            "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": "2.6.36",
                                    "versionEndExcluding": "5.10.261"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "2.6.36",
                                    "versionEndExcluding": "5.15.212"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "2.6.36",
                                    "versionEndExcluding": "6.1.178"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "2.6.36",
                                    "versionEndExcluding": "6.6.145"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "2.6.36",
                                    "versionEndExcluding": "6.12.97"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "2.6.36",
                                    "versionEndExcluding": "6.18.40"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "2.6.36",
                                    "versionEndExcluding": "7.1.5"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "2.6.36",
                                    "versionEndExcluding": "7.2"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/c1a276a731d02cbb728d0530f327a68728f2d8b0"
                },
                {
                    "url": "https://git.kernel.org/stable/c/24fbed0a2a45f5f379ef2b53bd2abe58be1142ad"
                },
                {
                    "url": "https://git.kernel.org/stable/c/efa96a22613b86e05cd81229ce0be411c1a4a79a"
                },
                {
                    "url": "https://git.kernel.org/stable/c/9a77a7639dfdc3eca417cd37620ce64da79c80c4"
                },
                {
                    "url": "https://git.kernel.org/stable/c/b4d05032e9af7137eab8f3af2855073f896ca843"
                },
                {
                    "url": "https://git.kernel.org/stable/c/f7c67c97b37c11f2a95c204092fb8159f2779e8f"
                },
                {
                    "url": "https://git.kernel.org/stable/c/4dad7e870c7e5178f71b5e1e4f67934b9e8cc207"
                },
                {
                    "url": "https://git.kernel.org/stable/c/ffa0aa5b625fe0bed7463ac613f8b06676ff4542"
                }
            ],
            "title": "x86/boot: Validate console=uart8250 baud rate to fix early boot hang",
            "x_generator": {
                "engine": "bippy-1.2.0"
            }
        }
    }
}