Medium 5.5Published Apr 22, 2026

CVE-2026-31491RDMA/irdma: Harden depth calculation functions

Updated under an hour ago (Oct 26, 2026, 2:23 PM ET)

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Exploited in the last 30 days

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.

CVSS: 5.5 MEDIUM (v3.1, NVD)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Weakness (CWE): Not given
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Linux
NVD analysis: Analyzed
Record last updated: May 11, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Linux Linux linux:linux (from the name)	563e1feb5f6ed579acb55850f1bbb831aecf645a builds before 3f08351de5ca4f2f724b86ad252fbc21289467e1; from 563e1feb5f6ed579acb55850f1bbb831aecf645a before cbd852f5700eb3f64392452faf693ac45cae8281; from 563e1feb5f6ed579acb55850f1bbb831aecf645a before e37afcb56ae070477741fe2d6e61fc0c542cce2d	CNA record
linux linux_kernel linux:linux_kernel	from 6.18.1 before 6.18.21; from 6.19 before 6.19.11; 6.18; 7.0; 7.0; 7.0; 7.0; 7.0; and 2 more ranges	NVD

References

References

https://git.kernel.org/stable/c/3f08351de5ca4f2f724b86ad252fbc21289467e1	patch
https://git.kernel.org/stable/c/cbd852f5700eb3f64392452faf693ac45cae8281	patch
https://git.kernel.org/stable/c/e37afcb56ae070477741fe2d6e61fc0c542cce2d	patch

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.