CVE-2024-36028

Kernel panic via hugetlb folio race

Published May 30, 2024 · Updated May 23, 2026

A race condition in Linux kernel hugetlb memory handling allows local users to trigger a kernel panic during memory failure handling. __update_and_free_hugetlb_folio() initializes a folio's unioned _deferred_list while a race leaves its hugetlb flag set, corrupting _hugetlb_subpool before free_huge_folio() uses it. Exploitation requires local access and concurrent hugetlb vmemmap restoration; panic-on-warning configurations turn the resulting lock warning into a system-wide crash.

CVSS severity4.7
Medium
EPSS probability0.18%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

A race condition in Linux kernel hugetlb memory handling allows local users to trigger a kernel panic during memory failure handling. __update_and_free_hugetlb_folio() initializes a folio's unioned _deferred_list while a race leaves its hugetlb flag set, corrupting _hugetlb_subpool before free_huge_folio() uses it. Exploitation requires local access and concurrent hugetlb vmemmap restoration; panic-on-warning configurations turn the resulting lock warning into a system-wide crash.

The record

CVE
CVE-2024-36028
Published
May 30, 2024
Updated
May 23, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-362, T1499.004
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. May 30, 2024CVE publishedPublication date reported by the CVE source.
  2. May 23, 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=1b4ce2952b4f33e198d5e993acff0611dff1e399 <2effe407f7563add41750fd7e03da4ea44b98099
  2. Affected versionversion=32c877191e022b55fe3a374f3d7e9fb5741c514d <52ccdde16b6540abe43b6f8d8e1e1ec90b0983af
  3. Affected versionversion=32c877191e022b55fe3a374f3d7e9fb5741c514d <7e0a322877416e8c648819a8e441cf8c790b2cce
  4. Affected versionversion=32c877191e022b55fe3a374f3d7e9fb5741c514d <9c9b32d46afab2d911897914181c488954012300
  5. Affected versionversion=6.1.47 <6.1.91
  6. Affected versionversion=6.4.11 <6.5
  7. Affected versionversion=6.5
  8. Affected versionversion=9a1a43a0e7e96911eaa00ad20b20f2edefb31d8a

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=1b4ce2952b4f33e198d5e993acff0611dff1e399 <2effe407f7563add41750fd7e03da4ea44b98099; version=32c877191e022b55fe3a374f3d7e9fb5741c514d <52ccdde16b6540abe43b6f8d8e1e1ec90b0983af; version=32c877191e022b55fe3a374f3d7e9fb5741c514d <7e0a322877416e8c648819a8e441cf8c790b2cce; version=32c877191e022b55fe3a374f3d7e9fb5741c514d <9c9b32d46afab2d911897914181c488954012300; version=6.1.47 <6.1.91; version=6.4.11 <6.5; version=6.5; version=9a1a43a0e7e96911eaa00ad20b20f2edefb31d8a

Published CVSS scores

4.7NIST NVDCVSS:3.1/AV:L/AC:H/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-362Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
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

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Your stack

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