PT-2026-34397 · Linux · Linux Kernel

Published 2026-04-22 · Updated 2026-05-26 · CVE-2026-31492

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)

Description An issue exists in the RDMA/irdma component where the free qp completion is not initialized before use. Specifically, in the irdma create qp() function, if the ib copy to udata call fails, the system invokes irdma destroy qp() for cleanup. This process attempts to wait on the free qp completion while it remains uninitialized.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Use of Uninitialized Resource

Weakness Enumeration

CWE-908

Related Identifiers

CVE-2026-31492

ECHO-AF01-A894-996A

Affected Products

Linux Kernel

References · 18

• https://osv.dev/vulnerability/ROOT-OS-UBUNTU-2204-CVE-2026-31492 · Vendor Advisory
• https://git.kernel.org/stable/c/11a95521fb93c91e2d4ef9d53dc80ef0a755549b · Patch
• https://git.kernel.org/stable/c/3cb88c12461b71c7d9c604aa2e6a9a477ecfa147 · Patch
• https://ubuntu.com/security/CVE-2026-31492 · Vendor Advisory
• https://git.kernel.org/stable/c/ac1da7bd224d406b6f1b84414f0f652ab43b6bd8 · Patch
• https://osv.dev/vulnerability/UBUNTU-CVE-2026-31492 · Vendor Advisory
• https://git.kernel.org/stable/c/af310407f79d5816fc0ab3638e1588b6193316dd · Patch
• https://osv.dev/vulnerability/DEBIAN-CVE-2026-31492 · Vendor Advisory
• https://osv.dev/vulnerability/BELL-CVE-2026-31492 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2026-31492 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2026-31492 · Security Note
• https://git.kernel.org/stable/c/cd1534c8f4984432382c240f6784408497f5bb0a · Patch
• https://git.kernel.org/stable/c/f72996834f7bdefc2b95e3eec30447ee195df44e · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2026-31492 · Security Note
• https://t.me/cveNotify/161244 · Telegram Post