{"api_version":"1","generated_at":"2026-08-22T04:27:08+00:00","cve":"CVE-2026-72238","urls":{"html":"https://cve.report/CVE-2026-72238","api":"https://cve.report/api/cve/CVE-2026-72238.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-72238","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-72238"},"summary":{"title":"x86/boot: Validate console=uart8250 baud rate to fix early boot hang","description":"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.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-08-15 06:21:50","updated_at":"2026-08-17 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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."}],"providerMetadata":{"dateUpdated":"2026-08-17T05:10:56.018Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"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"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-72238","datePublished":"2026-08-15T05:54:27.424Z","dateReserved":"2026-08-09T03:40:39.914Z","dateUpdated":"2026-08-17T05:10:56.018Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-08-15 06:21:50","lastModifiedDate":"2026-08-17 06:18:25","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"72238","Ordinal":"1","Title":"x86/boot: Validate console=uart8250 baud rate to fix early boot ","CVE":"CVE-2026-72238","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"72238","Ordinal":"1","NoteData":"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.","Type":"Description","Title":"x86/boot: Validate console=uart8250 baud rate to fix early boot "}]}}}