CVE-2026-72024

Kernel memory corruption via RCU teardown race

Published Aug 15, 2026 · Updated Aug 15, 2026

Expired-pointer dereference in the Linux kernel mac802154 subsystem allows local users to corrupt kernel memory through a teardown race. The bulk hardware-removal path deletes local->interfaces entries with list_del() while RCU readers in ieee802154_wake_queue() can still follow the poisoned node. The race requires namespace capabilities to transmit on an IEEE 802.15.4 interface while deleting its radio; triggering it exposes or corrupts kernel heap data and can crash, panic, or hang the host.

CVSS severity7.8
High
EPSS probability0.16%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Expired-pointer dereference in the Linux kernel mac802154 subsystem allows local users to corrupt kernel memory through a teardown race. The bulk hardware-removal path deletes local->interfaces entries with list_del() while RCU readers in ieee802154_wake_queue() can still follow the poisoned node. The race requires namespace capabilities to transmit on an IEEE 802.15.4 interface while deleting its radio; triggering it exposes or corrupts kernel heap data and can crash, panic, or hang the host.

The record

CVE
CVE-2026-72024
Published
Aug 15, 2026
Updated
Aug 15, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-825, T1068
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 15, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 15, 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=3.19
  2. Affected versionversion=592dfbfc72f5352437c883aa11ab579d10cdb595 <2039f27b1a0c997137a5de7f8a3cee0e80fbf952
  3. Affected versionversion=592dfbfc72f5352437c883aa11ab579d10cdb595 <4bf231f459b542414629b64f63d5cad6701bd07c
  4. Affected versionversion=592dfbfc72f5352437c883aa11ab579d10cdb595 <539dfcf69105d8d3d4d677b71de6e5ede2e6dfa0
  5. Affected versionversion=592dfbfc72f5352437c883aa11ab579d10cdb595 <72ac5af9ad09662bd0ea91cb8845d490c8ef9c01
  6. Affected versionversion=592dfbfc72f5352437c883aa11ab579d10cdb595 <77caf2d6eba7cb94a7ecd7b369a5974fd7d7c054
  7. Affected versionversion=592dfbfc72f5352437c883aa11ab579d10cdb595 <b91e5248dd7af09b500879a46d22a36b60db3a57
  8. Affected versionversion=592dfbfc72f5352437c883aa11ab579d10cdb595 <c7c031b75218b3ba3014a0f6b9849888994528d6
  9. Affected versionversion=592dfbfc72f5352437c883aa11ab579d10cdb595 <d8b5b66388a51febe4b8505b0ecd9da15b4ba639

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=3.19; version=592dfbfc72f5352437c883aa11ab579d10cdb595 <2039f27b1a0c997137a5de7f8a3cee0e80fbf952; version=592dfbfc72f5352437c883aa11ab579d10cdb595 <4bf231f459b542414629b64f63d5cad6701bd07c; version=592dfbfc72f5352437c883aa11ab579d10cdb595 <539dfcf69105d8d3d4d677b71de6e5ede2e6dfa0; version=592dfbfc72f5352437c883aa11ab579d10cdb595 <72ac5af9ad09662bd0ea91cb8845d490c8ef9c01; version=592dfbfc72f5352437c883aa11ab579d10cdb595 <77caf2d6eba7cb94a7ecd7b369a5974fd7d7c054; version=592dfbfc72f5352437c883aa11ab579d10cdb595 <b91e5248dd7af09b500879a46d22a36b60db3a57; version=592dfbfc72f5352437c883aa11ab579d10cdb595 <c7c031b75218b3ba3014a0f6b9849888994528d6; version=592dfbfc72f5352437c883aa11ab579d10cdb595 <d8b5b66388a51febe4b8505b0ecd9da15b4ba639

Published CVSS scores

7.3CanonicalCVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
7.8Linux CVE Numbering AuthorityCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-825Expired Pointer Dereference
T1068Exploitation for Privilege Escalation

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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