CVE-2022-50706Public exploit

Kernel warning via zero-length IEEE 802.15.4 send

Published Dec 24, 2025 · Updated Dec 24, 2025

Improper input validation in affected Linux kernel releases allows local users to trigger a kernel warning via a zero-length raw send. The IEEE 802.15.4 raw_sendmsg path passes an empty socket buffer to __dev_queue_xmit, where skb_assert_len rejects skb->len of zero. Creating the required raw socket requires CAP_NET_RAW; the public record documents the warning but no crash or further impact.

CVSS severityUnavailable
Unscored
EPSS probability0.20%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper input validation in affected Linux kernel releases allows local users to trigger a kernel warning via a zero-length raw send. The IEEE 802.15.4 raw_sendmsg path passes an empty socket buffer to __dev_queue_xmit, where skb_assert_len rejects skb->len of zero. Creating the required raw socket requires CAP_NET_RAW; the public record documents the warning but no crash or further impact.

The record

CVE
CVE-2022-50706
Published
Dec 24, 2025
Updated
Dec 24, 2025
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
Unavailable
Attack vector
local
Privileges
Unavailable

Timeline

How it unfolded

  1. Dec 24, 2025CVE publishedPublication date reported by the CVE source.
  2. Dec 24, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=6.0
  2. Affected versionversion=6204bf78b2a903b96ba43afff6abc0b04d6e0462 <791489a5c56396ddfed75fc525066d4738dace46
  3. Affected versionversion=72f2dc8993f10262092745a88cb2dd0fef094f23 <df0da3fc131132b6c32a15c4da4ffa3a5aea1af2
  4. Affected versionversion=8b68e53d56697a59b5c53893b53f508bbdf272a0 <4a36de8947794fa21435d1e916e089095f3246a8
  5. Affected versionversion=a75987714bd2d8e59840667a28e15c1fa5c47554 <34f31a2b667914ab701ca725554a0b447809d7ef
  6. Affected versionversion=fd1894224407c484f652ad456e1ce423e89bb3eb <9974d220c5073d035b5469d1d8ecd71da86c7afd
  7. Affected versionversion=fd1894224407c484f652ad456e1ce423e89bb3eb <b12e924a2f5b960373459c8f8a514f887adf5cac

What conditions does exploitation require?

Attack vectorlocal
Required privilegesUnavailable in this record.

What is affected?

The Linux Kernel Organization · Linuxversion=6.0; version=6204bf78b2a903b96ba43afff6abc0b04d6e0462 <791489a5c56396ddfed75fc525066d4738dace46; version=72f2dc8993f10262092745a88cb2dd0fef094f23 <df0da3fc131132b6c32a15c4da4ffa3a5aea1af2; version=8b68e53d56697a59b5c53893b53f508bbdf272a0 <4a36de8947794fa21435d1e916e089095f3246a8; version=a75987714bd2d8e59840667a28e15c1fa5c47554 <34f31a2b667914ab701ca725554a0b447809d7ef; version=fd1894224407c484f652ad456e1ce423e89bb3eb <9974d220c5073d035b5469d1d8ecd71da86c7afd; version=fd1894224407c484f652ad456e1ce423e89bb3eb <b12e924a2f5b960373459c8f8a514f887adf5cac

Published CVSS scores

No CVSS assessment is available in this record.

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
PrivilegesUnavailable
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

No sourced classifications are available.

Public exploit references

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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