CVE - CVE-2022-49749

CVE-ID
CVE-2022-49749	Learn more at National Vulnerability Database (NVD) • CVSS Severity Rating • Fix Information • Vulnerable Software Versions • SCAP Mappings • CPE Information
Description
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
Note: References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
MISC:https://git.kernel.org/stable/c/2f29d780bd691d20e89e5b35d5e6568607115e94 URL:https://git.kernel.org/stable/c/2f29d780bd691d20e89e5b35d5e6568607115e94 MISC:https://git.kernel.org/stable/c/9f36aae9e80e79b7a6d62227eaa96935166be9fe URL:https://git.kernel.org/stable/c/9f36aae9e80e79b7a6d62227eaa96935166be9fe MISC:https://git.kernel.org/stable/c/c8c37bc514514999e62a17e95160ed9ebf75ca8d URL:https://git.kernel.org/stable/c/c8c37bc514514999e62a17e95160ed9ebf75ca8d MISC:https://git.kernel.org/stable/c/ed173f77fd28a3e4fffc13b3f28687b9eba61157 URL:https://git.kernel.org/stable/c/ed173f77fd28a3e4fffc13b3f28687b9eba61157
Assigning CNA
kernel.org
Date Record Created
20250327	Disclaimer: The record creation date may reflect when the CVE ID was allocated or reserved, and does not necessarily indicate when this vulnerability was discovered, shared with the affected vendor, publicly disclosed, or updated in CVE.
Phase (Legacy)
Assigned (20250327)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
This is an record on the CVE List, which provides common identifiers for publicly known cybersecurity vulnerabilities.
Search CVE Using Keywords: You can also search by reference using the CVE Reference Maps.
For More Information: CVE Request Web Form (select "Other" from dropdown)