CVE-2024-47664

Summary

In the Linux kernel, the following vulnerability has been resolved: spi: hisi-kunpeng: Add verification for the max_frequency provided by the firmware If the value of max_speed_hz is 0, it may cause a division by zero error in hisi_calc_effective_speed(). The value of max_speed_hz is provided by firmware. Firmware is generally considered as a trusted domain. However, as division by zero errors can cause system failure, for defense measure, the value of max_speed is validated here. So 0 is regarded as invalid and an error code is returned.

Impact & exploitability

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Affected products we track (1)

Recommendation

Apply the vendor fix in your normal patch cycle. Open any affected product above for its exact safe version.

Official patch: https://git.kernel.org/stable/c/16ccaf581da4fcf1e4d66086cf37263f9a656d43 ↗

Additional information

• NVD record
• https://git.kernel.org/stable/c/16ccaf581da4fcf1e4d66086cf37263f9a656d43Patch
• https://git.kernel.org/stable/c/5127c42c77de18651aa9e8e0a3ced190103b449cPatch
• https://git.kernel.org/stable/c/ee73a15d4a8ce8fb02d7866f7cf78fcdd16f0fccPatch
• https://git.kernel.org/stable/c/dc30f8d9b25db3b79d36971a90c1ee95010ff45a