CVE-2024-36023

Kernel crash via OrangeFS mount cleanup dereference

Published May 30, 2024 · Updated May 11, 2026

NULL pointer dereference in OrangeFS mount cleanup in Linux allows local users to crash the kernel during allocation failure. When allocation of sb->s_fs_info fails in orangefs_mount(), the error path jumps to free_sb_and_op and dereferences ORANGEFS_SB(sb)->no_list even though that pointer is NULL. Reachability requires local access to the OrangeFS mount path and failure of that kernel allocation; the bounded consequence is a kernel crash and service interruption.

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

NULL pointer dereference in OrangeFS mount cleanup in Linux allows local users to crash the kernel during allocation failure. When allocation of sb->s_fs_info fails in orangefs_mount(), the error path jumps to free_sb_and_op and dereferences ORANGEFS_SB(sb)->no_list even though that pointer is NULL. Reachability requires local access to the OrangeFS mount path and failure of that kernel allocation; the bounded consequence is a kernel crash and service interruption.

The record

CVE
CVE-2024-36023
Published
May 30, 2024
Updated
May 11, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-476, T1499.004
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=4.6
  2. Affected versionversion=f7ab093f74bf638ed98fd1115f3efa17e308bb7f <214a6c4a28c11d67044e6cf3a0ab415050d9f03a
  3. Affected versionversion=f7ab093f74bf638ed98fd1115f3efa17e308bb7f <2e2177f94c0e0bc41323d7b6975a5f4820ed347e
  4. Affected versionversion=f7ab093f74bf638ed98fd1115f3efa17e308bb7f <9bf93dcfc453fae192fe5d7874b89699e8f800ac
  5. Affected versionversion=f7ab093f74bf638ed98fd1115f3efa17e308bb7f <b972e8ac3f44f693127a2806031962d100dfc4d1

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=4.6; version=f7ab093f74bf638ed98fd1115f3efa17e308bb7f <214a6c4a28c11d67044e6cf3a0ab415050d9f03a; version=f7ab093f74bf638ed98fd1115f3efa17e308bb7f <2e2177f94c0e0bc41323d7b6975a5f4820ed347e; version=f7ab093f74bf638ed98fd1115f3efa17e308bb7f <9bf93dcfc453fae192fe5d7874b89699e8f800ac; version=f7ab093f74bf638ed98fd1115f3efa17e308bb7f <b972e8ac3f44f693127a2806031962d100dfc4d1

Published CVSS scores

5.5NVDCVSS: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
T1499.004Application or System Exploitation

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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