CVE-2022-48657 Information

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.

Reference

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