CVE-2022-49404: RDMA/hfi1: Fix potential integer multiplication overflow errors
First published: Wed Feb 26 2025(Updated: )
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.
Credit: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux Kernel | ||
| Linux Kernel | >=4.3<4.9.318 | |
| Linux Kernel | >=4.10<4.14.283 | |
| Linux Kernel | >=4.15<4.19.247 | |
| Linux Kernel | >=4.20<5.4.198 | |
| Linux Kernel | >=5.5<5.10.121 | |
| Linux Kernel | >=5.11<5.15.46 | |
| Linux Kernel | >=5.16<5.17.14 | |
| Linux Kernel | >=5.18<5.18.3 |
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Reference Links
- https://git.kernel.org/stable/c/252f4afd4557a2e7075f793a5c80fe6dd9e9ee4a
- https://git.kernel.org/stable/c/a89cb7ddf6a89bab6012e19da38b7cdb26175c19
- https://git.kernel.org/stable/c/79c164e61f818054cd6012e9035701840d895c51
- https://git.kernel.org/stable/c/8858284dd74906fa00f04f0252c75df4893a7959
- https://git.kernel.org/stable/c/31dca00d0cc9f4133320d72eb7e3720badc6d6e6
- https://git.kernel.org/stable/c/3f09ec80f115d2875d747ed28adc1773037e0f8b
- https://git.kernel.org/stable/c/06039d8afefdbac05bcea5f397188407eba2996d
- https://git.kernel.org/stable/c/ef5ab2e48a5f9960e2352332b7cdb7064bb49032
- https://git.kernel.org/stable/c/f93e91a0372c922c20d5bee260b0f43b4b8a1bee
Frequently Asked Questions
What is the severity of CVE-2022-49404?
CVE-2022-49404 has a moderate severity due to the potential for integer multiplication overflow errors in the Linux kernel.
How do I fix CVE-2022-49404?
To fix CVE-2022-49404, update your Linux kernel to a version that has patched the vulnerability.
What types of systems are affected by CVE-2022-49404?
CVE-2022-49404 affects multiple versions of the Linux kernel between 4.3 and 5.18.3.
What components are specifically impacted by CVE-2022-49404?
CVE-2022-49404 specifically impacts the RDMA/hfi1 component of the Linux kernel.
Can CVE-2022-49404 cause system crashes?
While CVE-2022-49404 may not directly cause system crashes, it could lead to undefined behavior due to the integer overflow.
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