What’s Vulnerable › Vulnerabilities

CVE-2022-48657: arm64: topology: fix possible overflow in amu_fie_setup()

• Severity: high (CVSS 7.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2024-04-28 · updated 2026-06-17
• Weakness: CWE-120

Description

In the Linux kernel, the following vulnerability has been resolved: arm64: topology: fix possible overflow in amu_fie_setup() cpufreq_get_hw_max_freq() returns max frequency in kHz as *unsigned int*, while freq_inv_set_max_ratio() gets passed this frequency in Hz as 'u64'. Multiplying max frequency by 1000 can potentially result in overflow -- multiplying by 1000ULL instead should avoid that... Found by Linux Verification Center (linuxtesting.org) with the SVACE static analysis tool.

Affected products

• Linux kernel: from 5.7 before 5.10.150; from 5.11 before 5.15.71; from 5.16 before 5.19.12 — fixed in 5.10.150, 5.15.71, 5.19.12

How to fix

Upgrade to a fixed version: Linux kernel 5.10.150, 5.15.71, 5.19.12. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/3c3edb82d67b2be9231174ac2af4af60d4af7549
• https://git.kernel.org/stable/c/904f881b57360cf85de962d84d8614d94431f60e
• https://git.kernel.org/stable/c/bb6d99e27cbe6b30e4e3bbd32927fd3b0bdec6eb
• https://git.kernel.org/stable/c/d4955c0ad77dbc684fc716387070ac24801b8bca
• https://git.kernel.org/stable/c/3c3edb82d67b2be9231174ac2af4af60d4af7549
• https://git.kernel.org/stable/c/904f881b57360cf85de962d84d8614d94431f60e
• https://git.kernel.org/stable/c/bb6d99e27cbe6b30e4e3bbd32927fd3b0bdec6eb
• https://git.kernel.org/stable/c/d4955c0ad77dbc684fc716387070ac24801b8bca

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