CVE-2024-41085

Kernel crash via premature cxl_nvd dereference

Published Jul 29, 2024 · Updated May 11, 2026

NULL pointer dereference in the Linux kernel CXL memory subsystem allows local users to crash the kernel during pmem region auto-assembly. cxl_pmem_region_probe dereferences a memdev cxl_nvd before cxl_memdev_probe has registered it because endpoint probing can auto-assemble the region first. Low-privileged local access and a CXL persistent-memory configuration that performs region auto-assembly are required, and the bounded consequence is system interruption from a kernel fault.

CVSS severity5.5
Medium
EPSS probability0.21%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

NULL pointer dereference in the Linux kernel CXL memory subsystem allows local users to crash the kernel during pmem region auto-assembly. cxl_pmem_region_probe dereferences a memdev cxl_nvd before cxl_memdev_probe has registered it because endpoint probing can auto-assemble the region first. Low-privileged local access and a CXL persistent-memory configuration that performs region auto-assembly are required, and the bounded consequence is system interruption from a kernel fault.

The record

CVE
CVE-2024-41085
Published
Jul 29, 2024
Updated
May 11, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-476, T1499
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Jul 29, 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=6.2
  2. Affected versionversion=f17b558d6663101f876a1d9cbbad3de0c8f4ce4d <1d064e4fbebcf5b18dc10c1f3973487eb163b600
  3. Affected versionversion=f17b558d6663101f876a1d9cbbad3de0c8f4ce4d <84ec985944ef34a34a1605b93ce401aa8737af96

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=6.2; version=f17b558d6663101f876a1d9cbbad3de0c8f4ce4d <1d064e4fbebcf5b18dc10c1f3973487eb163b600; version=f17b558d6663101f876a1d9cbbad3de0c8f4ce4d <84ec985944ef34a34a1605b93ce401aa8737af96

Published CVSS scores

5.5Amazon LinuxCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
5.5UbuntuCVSS: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.

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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)
Vectorlocal
Privilegesauthenticated
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.

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Technologies

Your stack

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Your stack

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