CVE-2024-36030

Local memory disclosure and crash via double free

Published May 30, 2024 · Updated May 11, 2026

A double free in Linux 6.8 through 6.8.8 allows local users to disclose kernel memory or crash the system during octeontx2-af cleanup. rvu_npc_freemem() calls npc_mcam_rsrcs_deinit(), which frees mcam->counters.bmap, and then passes that released pointer to kfree() again. The octeontx2-af resource teardown path must run; public kernel records do not identify the user action that reaches it or demonstrate code execution.

CVSS severity7.1
High
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 double free in Linux 6.8 through 6.8.8 allows local users to disclose kernel memory or crash the system during octeontx2-af cleanup. rvu_npc_freemem() calls npc_mcam_rsrcs_deinit(), which frees mcam->counters.bmap, and then passes that released pointer to kfree() again. The octeontx2-af resource teardown path must run; public kernel records do not identify the user action that reaches it or demonstrate code execution.

The record

CVE
CVE-2024-36030
Published
May 30, 2024
Updated
May 11, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-415
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=6.8
  2. Affected versionversion=dd7842878633453e38d6a4927593dd28b9d8ab91 <6e965eba43e9724f3e603d7b7cc83e53b23d155e
  3. Affected versionversion=dd7842878633453e38d6a4927593dd28b9d8ab91 <f5aa87a2c0a72132ffc793fb0a5375b2a65d520a

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=6.8; version=dd7842878633453e38d6a4927593dd28b9d8ab91 <6e965eba43e9724f3e603d7b7cc83e53b23d155e; version=dd7842878633453e38d6a4927593dd28b9d8ab91 <f5aa87a2c0a72132ffc793fb0a5375b2a65d520a

Published CVSS scores

7.1CISA-ADPCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/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-415Double Free

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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