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.

References

• https://nvd.nist.gov/vuln/detail/CVE-2024-56681
• https://git.kernel.org/stable/c/05f0a3f5477ecaa1cf46448504afe9e7c2e96fcc
• https://git.kernel.org/stable/c/19630cf57233e845b6ac57c9c969a4888925467b
• https://git.kernel.org/stable/c/28f8ffa945f7d7150463e15097ea73b19529d6f5
• https://git.kernel.org/stable/c/4ea3e3b761e371102bb1486778e2f8dbc9e37413
• https://git.kernel.org/stable/c/75e1e38e5d80d6d9011b7322698ffba3dd3db30a
• https://git.kernel.org/stable/c/8f1a9a960b1107bd0e0ec3736055f5ed0e717edf
• https://git.kernel.org/stable/c/ae5253313e0ea5f00c06176074592b7f493c8546
• https://git.kernel.org/stable/c/bba9e38c5ad41d0a88b22a59e5b6dd3e31825118
• https://git.kernel.org/stable/c/ee36db8e8203420e6d5c42eb9428920c2fc36532