CVE-2026-68126

Kernel crash via unpinned scan interface

Published Aug 10, 2026 · Updated Aug 10, 2026

Use-after-free in Linux mac802154 allows local users with CAP_NET_ADMIN to crash the kernel by racing scan and interface deletion. mac802154_scan_worker() retains sdata->dev after leaving RCU protection, while concurrent interface removal lets unregister_netdevice() free that netdev before later beacon or cleanup dereferences. Exploitation requires both TRIGGER_SCAN and DEL_INTERFACE privileges and can interrupt the host through a kernel memory-safety failure.

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

Use-after-free in Linux mac802154 allows local users with CAP_NET_ADMIN to crash the kernel by racing scan and interface deletion. mac802154_scan_worker() retains sdata->dev after leaving RCU protection, while concurrent interface removal lets unregister_netdevice() free that netdev before later beacon or cleanup dereferences. Exploitation requires both TRIGGER_SCAN and DEL_INTERFACE privileges and can interrupt the host through a kernel memory-safety failure.

The record

CVE
CVE-2026-68126
Published
Aug 10, 2026
Updated
Aug 10, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
T1499.004
Attack vector
local
Privileges
admin

Timeline

How it unfolded

  1. Aug 10, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 10, 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=57588c71177f0bfc08509c2c3a9bfe32850c0786 <234e5e898b713bc0b3a631b6f002897f43d046c8
  2. Affected versionversion=57588c71177f0bfc08509c2c3a9bfe32850c0786 <59c1d5463b7bc5a2cdaae27108d1dfd67edc7d1b
  3. Affected versionversion=57588c71177f0bfc08509c2c3a9bfe32850c0786 <5f303f622f6bb8907c405e5123a0ab0f70fb0065
  4. Affected versionversion=57588c71177f0bfc08509c2c3a9bfe32850c0786 <bd7110f0caa32426140ff302a209c53294ef2cfd
  5. Affected versionversion=57588c71177f0bfc08509c2c3a9bfe32850c0786 <dd4754194a706163294b6141460101b99082c8c7
  6. Affected versionversion=6.3

What conditions does exploitation require?

Attack vectorlocal
Required privilegesadmin

What is affected?

The Linux Kernel Organization · Linuxversion=57588c71177f0bfc08509c2c3a9bfe32850c0786 <234e5e898b713bc0b3a631b6f002897f43d046c8; version=57588c71177f0bfc08509c2c3a9bfe32850c0786 <59c1d5463b7bc5a2cdaae27108d1dfd67edc7d1b; version=57588c71177f0bfc08509c2c3a9bfe32850c0786 <5f303f622f6bb8907c405e5123a0ab0f70fb0065; version=57588c71177f0bfc08509c2c3a9bfe32850c0786 <bd7110f0caa32426140ff302a209c53294ef2cfd; version=57588c71177f0bfc08509c2c3a9bfe32850c0786 <dd4754194a706163294b6141460101b99082c8c7; version=6.3

Published CVSS scores

4.7Amazon LinuxCVSS: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.

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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
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

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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