Bug 2348266 (CVE-2022-49404)

Summary: CVE-2022-49404 kernel: RDMA/hfi1: Fix potential integer multiplication overflow errors
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
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Priority: medium    
Version: unspecifiedCC: dfreiber, drow, jburrell, vkumar
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Hardware: All   
OS: Linux   
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Description OSIDB Bzimport 2025-02-26 03:23:27 UTC 
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.
Comment 1 Avinash Hanwate 2025-02-26 12:20:29 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025022651-CVE-2022-49404-9bb3@gregkh/T
Comment 4 Avinash Hanwate 2025-02-26 16:38:06 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025022651-CVE-2022-49404-9bb3@gregkh/T