CVE-2026-31491

MEDIUM
MEDIUM Priority: 0.01 BB Relevance: 36/100
Published: 2026-04-22 Modified: 2026-11-11 First seen: 2026-11-05 Status: active

Attack Surface

Low Complexity No Interaction

CVSS Vector Breakdown

AV: Local
AC: Low
PR: Low
UI: None
S: Unchanged
C: None
I: None
A: High

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.

Weakness Classification (1)

Affected Software (13)

VendorProductVersion
Linux Linux 563e1feb5f6ed579acb55850f1bbb831aecf645a < 3f08351de5ca4f2f724b86ad252fbc21289467e1
Linux Linux 563e1feb5f6ed579acb55850f1bbb831aecf645a < cbd852f5700eb3f64392452faf693ac45cae8281
Linux Linux 563e1feb5f6ed579acb55850f1bbb831aecf645a < e37afcb56ae070477741fe2d6e61fc0c542cce2d
Linux Linux 6.18
linux linux_kernel 6.18.1 – 6.18.21
linux linux_kernel 6.18
linux linux_kernel 7.0
linux linux_kernel 7.0
linux linux_kernel 7.0
linux linux_kernel 7.0
linux linux_kernel 7.0
linux linux_kernel 7.0
linux linux_kernel 7.0

Bug Bounty Relevance

36 / 100
✓ Low complexity
✓ No user interaction

CVSS Score

5.5 / 10.0 v3.1
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

EPSS — Exploitation Probability

0.12%
Raw Score 0.001210
Percentile 1.9%
Date 2026-11-14

EPSS Trend

2026-11-14
0.00121
2026-11-13
0.00121
2026-11-12
0.00121
2026-11-10
0.00121
2026-11-09
0.00121
2026-11-08
0.00121
2026-11-07
0.00121
2026-11-06
0.00121
2026-11-05
0.00121

Intelligence Sources

mitre ref →
nvd ref →