CVE-2026-46126

Work-queue resource leak via incomplete error unwind

Published May 28, 2026 · Updated May 28, 2026

Resource-management error in Linux Kernel 6.8 and later affected lines causes incomplete cleanup after RSS queue-creation failures. In mana_ib_create_qp_rss(), the first failure path decrements the work-queue index twice, and a failed mana_ib_install_cq_cb() leaves a created WQ object undestroyed. Published sources do not identify an attacker-controlled trigger or an operational consequence beyond incorrect resource cleanup.

CVSS severityUnavailable
Unscored
EPSS probability0.13%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Resource-management error in Linux Kernel 6.8 and later affected lines causes incomplete cleanup after RSS queue-creation failures. In mana_ib_create_qp_rss(), the first failure path decrements the work-queue index twice, and a failed mana_ib_install_cq_cb() leaves a created WQ object undestroyed. Published sources do not identify an attacker-controlled trigger or an operational consequence beyond incorrect resource cleanup.

The record

CVE
CVE-2026-46126
Published
May 28, 2026
Updated
May 28, 2026
Vendor
The Linux Kernel Organization
Product
Linux Kernel
Classifications
Unavailable
Attack vector
Unavailable
Privileges
Unavailable

Timeline

How it unfolded

  1. May 28, 2026CVE publishedPublication date reported by the CVE source.
  2. May 28, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=6.8
  2. Affected versionversion=c15d7802a42402a87880a17eee89ff023e49ecc0 <34ecf795692ee57c393109f4a24ccc313091e137
  3. Affected versionversion=c15d7802a42402a87880a17eee89ff023e49ecc0 <8f23eb6c50f1a4bf32fc4d62cfb9fc39e8e586cf
  4. Affected versionversion=c15d7802a42402a87880a17eee89ff023e49ecc0 <9a05a6798177e44dfbe18393be2c1ebb89ab06fd
  5. Affected versionversion=c15d7802a42402a87880a17eee89ff023e49ecc0 <bb9cb36eaefa4dcb7c0d9f7a01e5c739abdd53a8

What conditions does exploitation require?

Attack vectorUnavailable in this record.
Required privilegesUnavailable in this record.

What is affected?

The Linux Kernel Organization · Linux Kernelversion=6.8; version=c15d7802a42402a87880a17eee89ff023e49ecc0 <34ecf795692ee57c393109f4a24ccc313091e137; version=c15d7802a42402a87880a17eee89ff023e49ecc0 <8f23eb6c50f1a4bf32fc4d62cfb9fc39e8e586cf; version=c15d7802a42402a87880a17eee89ff023e49ecc0 <9a05a6798177e44dfbe18393be2c1ebb89ab06fd; version=c15d7802a42402a87880a17eee89ff023e49ecc0 <bb9cb36eaefa4dcb7c0d9f7a01e5c739abdd53a8

Published CVSS scores

No CVSS assessment is available in this record.

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
VectorUnavailable
PrivilegesUnavailable
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

No sourced classifications are available.

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo