Answer in brief
CVE-2026-72238 records a Unknown severity vulnerability in x86/boot: Validate console=uart8250 baud rate to fix early boot hang. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
Answer in brief
CVE-2026-72238 records a Unknown severity vulnerability in x86/boot: Validate console=uart8250 baud rate to fix early boot hang. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=ce0aa5dd20e44372f9617dd67c984f41fcdbed88 <c1a276a731d02cbb728d0530f327a68728f2d8b0 || >=ce0aa5dd20e44372f9617dd67c984f41fcdbed88 <24fbed0a2a45f5f379ef2b53bd2abe58be1142ad || >=ce0aa5dd20e44372f9617dd67c984f41fcdbed88 <efa96a22613b86e05cd81229ce0be411c1a4a79a || >=ce0aa5dd20e44372f9617dd67c984f41fcdbed88 <9a77a7639dfdc3eca417cd37620ce64da79c80c4 || >=ce0aa5dd20e44372f9617dd67c984f41fcdbed88 <b4d05032e9af7137eab8f3af2855073f896ca843 || >=ce0aa5dd20e44372f9617dd67c984f41fcdbed88 <f7c67c97b37c11f2a95c204092fb8159f2779e8f || >=ce0aa5dd20e44372f9617dd67c984f41fcdbed88 <4dad7e870c7e5178f71b5e1e4f67934b9e8cc207 || >=ce0aa5dd20e44372f9617dd67c984f41fcdbed88 <ffa0aa5b625fe0bed7463ac613f8b06676ff4542 | c1a276a731d02cbb728d0530f327a68728f2d8b0, 24fbed0a2a45f5f379ef2b53bd2abe58be1142ad, efa96a22613b86e05cd81229ce0be411c1a4a79a, 9a77a7639dfdc3eca417cd37620ce64da79c80c4, b4d05032e9af7137eab8f3af2855073f896ca843, f7c67c97b37c11f2a95c204092fb8159f2779e8f, 4dad7e870c7e5178f71b5e1e4f67934b9e8cc207, ffa0aa5b625fe0bed7463ac613f8b06676ff4542 |
| Linux/Linuxgeneric | 2.6.36 | Not reported |
Published upstream
Aug 15, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 15, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 15, 2026
In the Linux kernel, the following vulnerability has been resolved: x86/boot: Validate console=uart8250 baud rate to fix early boot hang When the baud rate is empty, 0, invalid, or overflows to 0 when stored as an int, the system will hang during early boot because of a division by zero in early_serial_init(). Fall back to DEFAULT_BAUD when the resulting baud rate is 0 to prevent an early system hang.
Quoted source text, attributed separately from HOL analysis.
A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=ce0aa5dd20e44372f9617dd67c984f41fcdbed88 <c1a276a731d02cbb728d0530f327a68728f2d8b0 || >=ce0aa5dd20e44372f9617dd67c984f41fcdbed88 <24fbed0a2a45f5f379ef2b53bd2abe58be1142ad || >=ce0aa5dd20e44372f9617dd67c984f41fcdbed88 <efa96a22613b86e05cd81229ce0be411c1a4a79a || >=ce0aa5dd20e44372f9617dd67c984f41fcdbed88 <9a77a7639dfdc3eca417cd37620ce64da79c80c4 || >=ce0aa5dd20e44372f9617dd67c984f41fcdbed88 <b4d05032e9af7137eab8f3af2855073f896ca843 || >=ce0aa5dd20e44372f9617dd67c984f41fcdbed88 <f7c67c97b37c11f2a95c204092fb8159f2779e8f || >=ce0aa5dd20e44372f9617dd67c984f41fcdbed88 <4dad7e870c7e5178f71b5e1e4f67934b9e8cc207 || >=ce0aa5dd20e44372f9617dd67c984f41fcdbed88 <ffa0aa5b625fe0bed7463ac613f8b06676ff4542 | c1a276a731d02cbb728d0530f327a68728f2d8b0, 24fbed0a2a45f5f379ef2b53bd2abe58be1142ad, efa96a22613b86e05cd81229ce0be411c1a4a79a, 9a77a7639dfdc3eca417cd37620ce64da79c80c4, b4d05032e9af7137eab8f3af2855073f896ca843, f7c67c97b37c11f2a95c204092fb8159f2779e8f, 4dad7e870c7e5178f71b5e1e4f67934b9e8cc207, ffa0aa5b625fe0bed7463ac613f8b06676ff4542 |
| Linux/Linuxgeneric | 2.6.36 | Not reported |
Published upstream
Aug 15, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 15, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 15, 2026
In the Linux kernel, the following vulnerability has been resolved: x86/boot: Validate console=uart8250 baud rate to fix early boot hang When the baud rate is empty, 0, invalid, or overflows to 0 when stored as an int, the system will hang during early boot because of a division by zero in early_serial_init(). Fall back to DEFAULT_BAUD when the resulting baud rate is 0 to prevent an early system hang.
Quoted source text, attributed separately from HOL analysis.