Answer in brief
CVE-2024-56721 records a Unknown severity vulnerability in x86/CPU/AMD: Terminate the erratum_1386_microcode array. 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 | >=29ba89f1895285f06c333546882e0c5ae9a6df23 <82d6b82cf89d950982ac240ba068c3a7e1f23b0a || >=29ba89f1895285f06c333546882e0c5ae9a6df23 <ccfee14f08b8699132b87bc6d78e0fa75bf094dd || >=29ba89f1895285f06c333546882e0c5ae9a6df23 <ff6cdc407f4179748f4673c39b0921503199a0ad | 82d6b82cf89d950982ac240ba068c3a7e1f23b0a, ccfee14f08b8699132b87bc6d78e0fa75bf094dd, ff6cdc407f4179748f4673c39b0921503199a0ad |
| Linux/Linuxgeneric | 6.10 | Not reported |
Published upstream
Dec 29, 2024
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 5, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 5, 2026
In the Linux kernel, the following vulnerability has been resolved: x86/CPU/AMD: Terminate the erratum_1386_microcode array The erratum_1386_microcode array requires an empty entry at the end. Otherwise x86_match_cpu_with_stepping() will continue iterate the array after it ended. Add an empty entry to erratum_1386_microcode to its end.
Quoted source text, attributed separately from HOL analysis.
Answer in brief
CVE-2024-56721 records a Unknown severity vulnerability in x86/CPU/AMD: Terminate the erratum_1386_microcode array. 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 | >=29ba89f1895285f06c333546882e0c5ae9a6df23 <82d6b82cf89d950982ac240ba068c3a7e1f23b0a || >=29ba89f1895285f06c333546882e0c5ae9a6df23 <ccfee14f08b8699132b87bc6d78e0fa75bf094dd || >=29ba89f1895285f06c333546882e0c5ae9a6df23 <ff6cdc407f4179748f4673c39b0921503199a0ad | 82d6b82cf89d950982ac240ba068c3a7e1f23b0a, ccfee14f08b8699132b87bc6d78e0fa75bf094dd, ff6cdc407f4179748f4673c39b0921503199a0ad |
| Linux/Linuxgeneric | 6.10 | Not reported |
Published upstream
Dec 29, 2024
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 5, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 5, 2026
In the Linux kernel, the following vulnerability has been resolved: x86/CPU/AMD: Terminate the erratum_1386_microcode array The erratum_1386_microcode array requires an empty entry at the end. Otherwise x86_match_cpu_with_stepping() will continue iterate the array after it ended. Add an empty entry to erratum_1386_microcode to its end.
Quoted source text, attributed separately from HOL analysis.