5.5

CVE-2026-31492: linux Use of Uninitialized Resource

CVSS: 5.5v3.1MediumAnalyzed
AliasesUBUNTU-CVE-2026-31492DEBIAN-CVE-2026-31492
Published 22-04-2026Last modified 11-05-2026
Open JSON

Vulnerability summary

CVE-2026-31492 is a medium (CVSS 5.5) Use of Uninitialized Resource vulnerability in linux. EPSS estimates a 0.16% chance of exploitation in the next 30 days, higher than 5.1% of scored vulnerabilities.

Overall risk
22/100
0100
Low · default modelHow is this calculated?
CVSS score
5.5/10
010
Medium · v3.1 (NVD)
EPSS score
0.16%
0%100%
Low · +0.04 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 27 · Related 25
MGASA-2026-0108MGASA-2026-0110OPENSUSE-SU-2026:21388-1SUSE-SU-2026:22433-1SUSE-SU-2026:22436-1SUSE-SU-2026:22458-1

Timeline

  1. 22-04-2026
    PublishedVulnerability first disclosed.
  2. 11-05-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: RDMA/irdma: Initialize free_qp completion before using it In irdma_create_qp, if ib_copy_to_udata fails, it will call irdma_destroy_qp to clean up which will attempt to wait on the free_qp completion, which is not initialized yet. Fix this by initializing the completion before the ib_copy_to_udata call.

CVSS metrics

4 scores · 3 sources · 2 versions

EPSS trend

Probability

0.16%

Chance of exploitation in the next 30 days

Percentile

5%

Versus all other CVEs

30-day change

+0.04 pp

From 0.12% on 21-09-2026

21-09-202621-10-2026
EPSS score
0.16%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Ubuntu145 products
  • linuxAll versions (No fix recorded) | < 6.8.0-136.136
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded) | < 6.8.0-1061.64
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Linux2 products
  • linux≥ b48c24c2d710cf34810c555dcef883a3d35a9c08, < ac1da7bd224d406b6f1b84414f0f652ab43b6bd8 | ≥ b48c24c2d710cf34810c555dcef883a3d35a9c08, < af310407f79d5816fc0ab3638e1588b6193316dd | ≥ b48c24c2d710cf34810c555dcef883a3d35a9c08, < cd1534c8f4984432382c240f6784408497f5bb0a | ≥ b48c24c2d710cf34810c555dcef883a3d35a9c08, < 3cb88c12461b71c7d9c604aa2e6a9a477ecfa147 | ≥ b48c24c2d710cf34810c555dcef883a3d35a9c08, < f72996834f7bdefc2b95e3eec30447ee195df44e | ≥ b48c24c2d710cf34810c555dcef883a3d35a9c08, < 11a95521fb93c91e2d4ef9d53dc80ef0a755549b | 5.14
  • linux_kernelEOL≥ 5.14.1, < 6.1.168 | ≥ 6.2, < 6.6.131 | ≥ 6.7, < 6.12.80 | ≥ 6.13, < 6.18.21 | ≥ 6.19, < 6.19.11 | 5.14 | 7.0:rc1 | 7.0:rc2 | 7.0:rc3 | 7.0:rc4 | 7.0:rc5 | 7.0:rc6 | 7.0:rc7
Debian1 product
  • linux< 6.1.170-1 | < 6.12.85-1 | < 6.19.11-1

3 vendors · 148 products

References

24 links
Show all 24 references