{"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"}}}}