CVE-2024-26854Network attack vector

Service interruption via premature DPLL mutex use

Published Apr 17, 2024 · Updated May 11, 2026

Improper mutex initialization in Linux 6.7 allows remote attackers to interrupt service through the Intel ICE networking driver. The ice_dpll_init function registers DPLL devices before initializing pf->dplls.lock, so callbacks can attempt to lock an uninitialized mutex. Exposure requires Intel ICE hardware and the DPLL initialization path; the published trace demonstrates a kernel warning, not a documented crash or hang.

CVSS severity7.5
High
EPSS probability0.71%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper mutex initialization in Linux 6.7 allows remote attackers to interrupt service through the Intel ICE networking driver. The ice_dpll_init function registers DPLL devices before initializing pf->dplls.lock, so callbacks can attempt to lock an uninitialized mutex. Exposure requires Intel ICE hardware and the DPLL initialization path; the published trace demonstrates a kernel warning, not a documented crash or hang.

The record

CVE
CVE-2024-26854
Published
Apr 17, 2024
Updated
May 11, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-476, T1499
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 17, 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

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Is a vulnerable build present?

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

  1. Affected versionversion=6.7
  2. Affected versionversion=d7999f5ea64bb10d2857b8cbfe973be373bac7c9 <9224fc86f1776193650a33a275cac628952f80a9
  3. Affected versionversion=d7999f5ea64bb10d2857b8cbfe973be373bac7c9 <db29ceff3e25c48907016da456a7cbee6310fd83

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=6.7; version=d7999f5ea64bb10d2857b8cbfe973be373bac7c9 <9224fc86f1776193650a33a275cac628952f80a9; version=d7999f5ea64bb10d2857b8cbfe973be373bac7c9 <db29ceff3e25c48907016da456a7cbee6310fd83
The Linux Kernel Organization · Linux Kernelversion=6.7; version=d7999f5ea64b

Published CVSS scores

7.5CISACVSS:3.1/AV:N/AC:L/PR:N/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.

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No observations available

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

Weakness, pattern, technique

CWE-476NULL Pointer Dereference
T1499Endpoint Denial of Service

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

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Your stack

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