CVE-2022-50580
Unknown Unknown - Not Provided

BaseFortify

Publication date: 2025-10-22

Last updated on: 2025-10-22

Assigner: kernel.org

Description
In the Linux kernel, the following vulnerability has been resolved: blk-throttle: prevent overflow while calculating wait time There is a problem found by code review in tg_with_in_bps_limit() that 'bps_limit * jiffy_elapsed_rnd' might overflow. Fix the problem by calling mul_u64_u64_div_u64() instead.

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Meta Information

Published
2025-10-22
Last Modified
2025-10-22
Generated
2026-07-06
AI Q&A
2025-10-22
EPSS Evaluated
2026-07-05
NVD
CVE-2022-50580

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
linux linux_kernel *

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Exploitability

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CWE ID Description
CWE-UNKNOWN

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Executive Summary

This vulnerability is in the Linux kernel's blk-throttle component, where an overflow can occur during the calculation of wait time in the function tg_with_in_bps_limit(). Specifically, the multiplication 'bps_limit * jiffy_elapsed_rnd' might overflow, which could lead to incorrect behavior. The issue was fixed by using a safer multiplication and division function called mul_u64_u64_div_u64().

Impact Analysis

The vulnerability could cause incorrect calculation of wait times in the blk-throttle component of the Linux kernel, potentially leading to improper throttling behavior. This might affect system performance or resource management, but specific impacts are not detailed in the provided information.

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