CVE-2026-80601Hinoki check available

Use-after-free via stale Ethernet-header pointer

Published Aug 28, 2026 · Updated Aug 28, 2026

Use-after-free in Linux kernel batman-adv gateway handling allows attackers to trigger stale Ethernet-header access during packet processing. batadv_gw_out_of_range saves skb->data before batadv_get_vid calls pskb_may_pull, which can reallocate the buffer and invalidate that pointer. Reachability requires the batman-adv gateway path to process an affected packet; published material does not establish a resulting crash, disclosure, or code execution.

CVSS severityUnavailable
Unscored
EPSS probability0.26%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
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Summary

What happened

Use-after-free in Linux kernel batman-adv gateway handling allows attackers to trigger stale Ethernet-header access during packet processing. batadv_gw_out_of_range saves skb->data before batadv_get_vid calls pskb_may_pull, which can reallocate the buffer and invalidate that pointer. Reachability requires the batman-adv gateway path to process an affected packet; published material does not establish a resulting crash, disclosure, or code execution.

The record

CVE
CVE-2026-80601
Published
Aug 28, 2026
Updated
Aug 28, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
Unavailable
Attack vector
Unavailable
Privileges
Unavailable

Timeline

How it unfolded

  1. Aug 28, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 28, 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?

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  1. Affected versionversion=3.14
  2. Affected versionversion=6c413b1c22a2c4ef324f1c6f2c282f1ca10a93b9 <2760b38222c8828b075802342fe3b91eb823d542
  3. Affected versionversion=6c413b1c22a2c4ef324f1c6f2c282f1ca10a93b9 <6c37f1166549c999ccd164b0cb6462d1ae68f8f6
  4. Affected versionversion=6c413b1c22a2c4ef324f1c6f2c282f1ca10a93b9 <77880a3be88d378d60cc1e8f8ec70430e2ed0518
  5. Affected versionversion=6c413b1c22a2c4ef324f1c6f2c282f1ca10a93b9 <916dac5f2944f63f07f7b501acbea6737dbbed0e
  6. Affected versionversion=6c413b1c22a2c4ef324f1c6f2c282f1ca10a93b9 <afac8096bde4948e3caa7e4dd733867cfbd3018e
  7. Affected versionversion=6c413b1c22a2c4ef324f1c6f2c282f1ca10a93b9 <b79884a5567bf788fb76c30832467cf6a56f3c0d
  8. Affected versionversion=6c413b1c22a2c4ef324f1c6f2c282f1ca10a93b9 <e3f4325e35dd6e76b80665f3510738ce34819753
  9. Affected versionversion=6c413b1c22a2c4ef324f1c6f2c282f1ca10a93b9 <e6b43acd34b219b807e65096ce207b087942779d

What conditions does exploitation require?

Attack vectorUnavailable in this record.
Required privilegesUnavailable in this record.

What is affected?

The Linux Kernel Organization · Linuxversion=3.14; version=6c413b1c22a2c4ef324f1c6f2c282f1ca10a93b9 <2760b38222c8828b075802342fe3b91eb823d542; version=6c413b1c22a2c4ef324f1c6f2c282f1ca10a93b9 <6c37f1166549c999ccd164b0cb6462d1ae68f8f6; version=6c413b1c22a2c4ef324f1c6f2c282f1ca10a93b9 <77880a3be88d378d60cc1e8f8ec70430e2ed0518; version=6c413b1c22a2c4ef324f1c6f2c282f1ca10a93b9 <916dac5f2944f63f07f7b501acbea6737dbbed0e; version=6c413b1c22a2c4ef324f1c6f2c282f1ca10a93b9 <afac8096bde4948e3caa7e4dd733867cfbd3018e; version=6c413b1c22a2c4ef324f1c6f2c282f1ca10a93b9 <b79884a5567bf788fb76c30832467cf6a56f3c0d; version=6c413b1c22a2c4ef324f1c6f2c282f1ca10a93b9 <e3f4325e35dd6e76b80665f3510738ce34819753; version=6c413b1c22a2c4ef324f1c6f2c282f1ca10a93b9 <e6b43acd34b219b807e65096ce207b087942779d

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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
VectorUnavailable
PrivilegesUnavailable
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

No sourced classifications are available.

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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