CVE-2024-36920

Kernel warning via fixed-size flexible array declaration

Published May 30, 2024 · Updated May 11, 2026

A false-positive field-spanning write warning in the mpi3mr driver in Linux allows local users to trigger a kernel warning through storcli2. mpi3mr_bsg_request copies 128 bytes into reply_buf, declared as a one-byte trailing array even though storage was allocated for flexible-length data. The path requires an eHBA-9600 and the storcli2 show command; the kernel team identifies the warning as a false positive, with no memory corruption described.

CVSS severity5.5
Medium
EPSS probability0.23%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

A false-positive field-spanning write warning in the mpi3mr driver in Linux allows local users to trigger a kernel warning through storcli2. mpi3mr_bsg_request copies 128 bytes into reply_buf, declared as a one-byte trailing array even though storage was allocated for flexible-length data. The path requires an eHBA-9600 and the storcli2 show command; the kernel team identifies the warning as a false positive, with no memory corruption described.

The record

CVE
CVE-2024-36920
Published
May 30, 2024
Updated
May 11, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
Unavailable
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. May 30, 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=5.14
  2. Affected versionversion=c4f7ac64616ee513f9ac4ae6c4d8c3cccb6974df <429846b4b6ce9853e0d803a2357bb2e55083adf0
  3. Affected versionversion=c4f7ac64616ee513f9ac4ae6c4d8c3cccb6974df <4d2772324f43cf5674ac3dbe3f74a7e656396716
  4. Affected versionversion=c4f7ac64616ee513f9ac4ae6c4d8c3cccb6974df <5f0266044dc611563539705bff0b3e1545fbb6aa
  5. Affected versionversion=c4f7ac64616ee513f9ac4ae6c4d8c3cccb6974df <f09318244c6cafd10aca741b9c01e0a2c362d43a

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=5.14; version=c4f7ac64616ee513f9ac4ae6c4d8c3cccb6974df <429846b4b6ce9853e0d803a2357bb2e55083adf0; version=c4f7ac64616ee513f9ac4ae6c4d8c3cccb6974df <4d2772324f43cf5674ac3dbe3f74a7e656396716; version=c4f7ac64616ee513f9ac4ae6c4d8c3cccb6974df <5f0266044dc611563539705bff0b3e1545fbb6aa; version=c4f7ac64616ee513f9ac4ae6c4d8c3cccb6974df <f09318244c6cafd10aca741b9c01e0a2c362d43a

Published CVSS scores

5.5NIST NVDCVSS: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

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

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Your stack

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