VYPR
Medium severity5.5NVD Advisory· Published Jun 19, 2024· Updated Jun 17, 2026

CVE-2024-38575

CVE-2024-38575

Description

In the Linux kernel, the following vulnerability has been resolved:

wifi: brcmfmac: pcie: handle randbuf allocation failure

The kzalloc() in brcmf_pcie_download_fw_nvram() will return null if the physical memory has run out. As a result, if we use get_random_bytes() to generate random bytes in the randbuf, the null pointer dereference bug will happen.

In order to prevent allocation failure, this patch adds a separate function using buffer on kernel stack to generate random bytes in the randbuf, which could prevent the kernel stack from overflow.

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Affected products

115

Patches

Vulnerability mechanics

References

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