CVE-2024-26743

Local service interruption via unreleased QP resources

Published Apr 3, 2024 · Updated May 11, 2026

Resource exhaustion in affected Linux kernel builds allows local users to interrupt service through failed qedr user-QP creation. When qedr_init_user_queue() fails inside qedr_create_user_qp(), the error path leaves previously allocated QP resources unreleased instead of freeing them. Exploitation requires low-privileged local access and an active qedr RDMA device; repeated failures consume kernel resources and deny availability.

CVSS severity5.5
Medium
EPSS probability0.24%
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 exhaustion in affected Linux kernel builds allows local users to interrupt service through failed qedr user-QP creation. When qedr_init_user_queue() fails inside qedr_create_user_qp(), the error path leaves previously allocated QP resources unreleased instead of freeing them. Exploitation requires low-privileged local access and an active qedr RDMA device; repeated failures consume kernel resources and deny availability.

The record

CVE
CVE-2024-26743
Published
Apr 3, 2024
Updated
May 11, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-770, T1499.004
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Apr 3, 2024CVE publishedPublication date reported by the CVE source.
  2. May 11, 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=4.11
  2. Affected versionversion=df15856132bc837b512caa36d2227d2350cf64d8 <135e5465fefa463c5ec93c4eede48b9fedac894a
  3. Affected versionversion=df15856132bc837b512caa36d2227d2350cf64d8 <5639414a52a29336ffa1ede80a67c6d927acbc5a
  4. Affected versionversion=df15856132bc837b512caa36d2227d2350cf64d8 <5ba4e6d5863c53e937f49932dee0ecb004c65928
  5. Affected versionversion=df15856132bc837b512caa36d2227d2350cf64d8 <7f31a244c753aacf40b71d01f03ca6742f81bbbc
  6. Affected versionversion=df15856132bc837b512caa36d2227d2350cf64d8 <95175dda017cd4982cd47960536fa1de003d3298
  7. Affected versionversion=df15856132bc837b512caa36d2227d2350cf64d8 <bab8875c06ebda5e01c5c4cab30022aed85c14e6

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=4.11; version=df15856132bc837b512caa36d2227d2350cf64d8 <135e5465fefa463c5ec93c4eede48b9fedac894a; version=df15856132bc837b512caa36d2227d2350cf64d8 <5639414a52a29336ffa1ede80a67c6d927acbc5a; version=df15856132bc837b512caa36d2227d2350cf64d8 <5ba4e6d5863c53e937f49932dee0ecb004c65928; version=df15856132bc837b512caa36d2227d2350cf64d8 <7f31a244c753aacf40b71d01f03ca6742f81bbbc; version=df15856132bc837b512caa36d2227d2350cf64d8 <95175dda017cd4982cd47960536fa1de003d3298; version=df15856132bc837b512caa36d2227d2350cf64d8 <bab8875c06ebda5e01c5c4cab30022aed85c14e6

Published CVSS scores

5.5NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
5.5Oracle LinuxCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
5.5Amazon LinuxCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

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)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-770Allocation of Resources Without Limits or Throttling
T1499.004Application or System Exploitation

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