Answer in brief
CVE-2024-56681 records a High severity (CVSS 7.8) vulnerability in crypto: bcm - add error check in the ahash_hmac_init function. 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.
CVSS is 7.8. 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.
| Product | Affected versions | Fixed versions |
|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | Not reported | Not reported |
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=9d12ba86f818aa9cfe9f01b750336aa441f2ffa2 <8f1a9a960b1107bd0e0ec3736055f5ed0e717edf || >=9d12ba86f818aa9cfe9f01b750336aa441f2ffa2 <75e1e38e5d80d6d9011b7322698ffba3dd3db30a || >=9d12ba86f818aa9cfe9f01b750336aa441f2ffa2 <28f8ffa945f7d7150463e15097ea73b19529d6f5 || >=9d12ba86f818aa9cfe9f01b750336aa441f2ffa2 <4ea3e3b761e371102bb1486778e2f8dbc9e37413 || >=9d12ba86f818aa9cfe9f01b750336aa441f2ffa2 <05f0a3f5477ecaa1cf46448504afe9e7c2e96fcc || >=9d12ba86f818aa9cfe9f01b750336aa441f2ffa2 <ae5253313e0ea5f00c06176074592b7f493c8546 || >=9d12ba86f818aa9cfe9f01b750336aa441f2ffa2 <ee36db8e8203420e6d5c42eb9428920c2fc36532 || >=9d12ba86f818aa9cfe9f01b750336aa441f2ffa2 <bba9e38c5ad41d0a88b22a59e5b6dd3e31825118 || >=9d12ba86f818aa9cfe9f01b750336aa441f2ffa2 <19630cf57233e845b6ac57c9c969a4888925467b | 8f1a9a960b1107bd0e0ec3736055f5ed0e717edf, 75e1e38e5d80d6d9011b7322698ffba3dd3db30a, 28f8ffa945f7d7150463e15097ea73b19529d6f5, 4ea3e3b761e371102bb1486778e2f8dbc9e37413, 05f0a3f5477ecaa1cf46448504afe9e7c2e96fcc, ae5253313e0ea5f00c06176074592b7f493c8546, ee36db8e8203420e6d5c42eb9428920c2fc36532, bba9e38c5ad41d0a88b22a59e5b6dd3e31825118, 19630cf57233e845b6ac57c9c969a4888925467b |
| Linux/Linuxgeneric | 4.11 | Not reported |
Published upstream
Dec 28, 2024
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Oct 15, 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: crypto: bcm - add error check in the ahash_hmac_init function The ahash_init functions may return fails. The ahash_hmac_init should not return ok when ahash_init returns error. For an example, ahash_init will return -ENOMEM when allocation memory is error.
Quoted source text, attributed separately from HOL analysis.