CVE-2026-31491
Medium
Description
In the Linux kernel, the following vulnerability has been resolved: RDMA/irdma: Harden depth calculation functions An issue was exposed where OS can pass in U32_MAX for SQ/RQ/SRQ size. This can cause integer overflow and truncation of SQ/RQ/SRQ depth returning a success when it should have failed. Harden the functions to do all depth calculations and boundary checking in u64 sizes.
SeverityMedium
CVSS5.5
Exploit probability—
Product
Linux Kernel
PublishedApr 22, 2026
First seenApr 22, 2026
Weakness typeCWE-190Integer overflow
How to fix
Update
- linux linux_kernel6.18.21, 6.19.11 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| linux linux_kernel | 6.18.1 ≤ v < 6.18.21, 6.19 ≤ v < 6.19.11, 6.18, 7.0 | 6.18.21, 6.19.11 |
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