CVE-2022-49404 Information

Description

In the Linux kernel the following vulnerability has been resolved:

RDMA/hfi1: Fix potential integer multiplication overflow errors

When multiplying of different types an overflow is possible even when storing the result in a larger type. This is because the conversion is done after the multiplication. So arithmetic overflow and thus in incorrect value is possible.

Correct an instance of this in the inter packet delay calculation. Fix by ensuring one of the operands is u64 which will promote the other to u64 as well ensuring no overflow.

Reference

https://git.kernel.org/stable/c/06039d8afefdbac05bcea5f397188407eba2996d https://git.kernel.org/stable/c/252f4afd4557a2e7075f793a5c80fe6dd9e9ee4a https://git.kernel.org/stable/c/31dca00d0cc9f4133320d72eb7e3720badc6d6e6 https://git.kernel.org/stable/c/3f09ec80f115d2875d747ed28adc1773037e0f8b https://git.kernel.org/stable/c/79c164e61f818054cd6012e9035701840d895c51 https://git.kernel.org/stable/c/8858284dd74906fa00f04f0252c75df4893a7959 https://git.kernel.org/stable/c/a89cb7ddf6a89bab6012e19da38b7cdb26175c19 https://git.kernel.org/stable/c/ef5ab2e48a5f9960e2352332b7cdb7064bb49032 https://git.kernel.org/stable/c/f93e91a0372c922c20d5bee260b0f43b4b8a1bee