CVE-2022-49749: 
Linux Kernel vulnerability analysis and mitigation

CVE-2022-49749 is a vulnerability discovered in the Linux kernel's i2c designware component. The issue involves potential overflow conditions in the functions i2cdwscllcnt() and i2cdwsclhcnt() that can occur depending on the values of given parameters, particularly when ic_clk is larger than one million (NVD).

The vulnerability stems from a multiplication overflow issue in the i2c designware component. Specifically, when icclk is larger than one million, the multiplication of icclk * 4700 results in a 32-bit overflow in the functions i2cdwscllcnt() and i2cdwsclhcnt(). The fix involves adding a cast of u64 to the calculation to avoid multiplication overflow and using the corresponding define for divide (NVD).

The vulnerability has been resolved by implementing a fix that adds casting of u64 in clock multiplication to avoid overflow. The solution involves modifying the calculation process to prevent multiplication overflow issues (NVD).