CVE-2022-49749 (GCVE-0-2022-49749)
Vulnerability from cvelistv5
Published
2025-03-27 16:42
Modified
2025-05-04 08:44
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: i2c: designware: use casting of u64 in clock multiplication to avoid overflow In functions i2c_dw_scl_lcnt() and i2c_dw_scl_hcnt() may have overflow by depending on the values of the given parameters including the ic_clk. For example in our use case where ic_clk is larger than one million, multiplication of ic_clk * 4700 will result in 32 bit overflow. Add cast of u64 to the calculation to avoid multiplication overflow, and use the corresponding define for divide.
References
Impacted products
Vendor Product Version
Linux Linux Version: 2373f6b9744d5373b886f3ce1a985193cca0a356
Version: 2373f6b9744d5373b886f3ce1a985193cca0a356
Version: 2373f6b9744d5373b886f3ce1a985193cca0a356
Version: 2373f6b9744d5373b886f3ce1a985193cca0a356
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}


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