CVE-2022-48657
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…
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.25%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 3.1
- 7.8 HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 0.25% probability · 16th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-120
- Affected
- linux/linux kernel
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
References
- https://git.kernel.org/stable/c/3c3edb82d67b2be9231174ac2af4af60d4af7549Patch
- https://git.kernel.org/stable/c/904f881b57360cf85de962d84d8614d94431f60ePatch
- https://git.kernel.org/stable/c/bb6d99e27cbe6b30e4e3bbd32927fd3b0bdec6ebPatch
- https://git.kernel.org/stable/c/d4955c0ad77dbc684fc716387070ac24801b8bcaPatch
- https://git.kernel.org/stable/c/3c3edb82d67b2be9231174ac2af4af60d4af7549Patch
- https://git.kernel.org/stable/c/904f881b57360cf85de962d84d8614d94431f60ePatch
- https://git.kernel.org/stable/c/bb6d99e27cbe6b30e4e3bbd32927fd3b0bdec6ebPatch
- https://git.kernel.org/stable/c/d4955c0ad77dbc684fc716387070ac24801b8bcaPatch
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.