CVE-2024-47664: Linux kernel · spi: hisi-kunpeng: Add verification for the max_frequency provided by the firmware
Affects Linux kernelSource GCVE Database
Not known to be exploited.
Data as of 30 Oct 2026, 15:18 UTC
Rated Medium by Threat Radar's AI analysis · No CVSS score from NVD or the CNA
Thin evidence
One scorer or noneExploitation evidence
Disclosed: evidence found.
CVE published 9 Oct 2024
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 30 Oct 2026.
What to do
AI-suggested
A fix has been implemented in the Linux kernel to validate the max_speed_hz value and reject zero values. Users should update to the fixed kernel version containing this validation. No additional mitigation is required beyond applying the official fix.
Description
A vulnerability in the Linux kernel's hisi-kunpeng SPI driver was addressed by adding verification for the max_frequency value provided by firmware. If the max_speed_hz value is zero, it could cause a division by zero error in the hisi_calc_effective_speed() function, potentially leading to system failure. The fix treats zero as invalid and returns an error code to prevent this issue.
References
- git.kernel.org/stable/c/dc30f8d9b25db3b79d36971a90c1ee95010ff45a (opens in a new tab)
- git.kernel.org/stable/c/16ccaf581da4fcf1e4d66086cf37263f9a656d43 (opens in a new tab)
- git.kernel.org/stable/c/ee73a15d4a8ce8fb02d7866f7cf78fcdd16f0fcc (opens in a new tab)
- git.kernel.org/stable/c/5127c42c77de18651aa9e8e0a3ced190103b449c (opens in a new tab)