CVE-2026-97614Hinoki check available

Kernel slab over-read via undeclared FCS tailroom

Published Sep 25, 2026 · Updated Sep 25, 2026

An out-of-bounds read in the Linux kernel 6.17 Broadcom legacy FCS DSA tagger allows attackers to read past the skb linear head. brcm_leg_fcs_tag_xmit passes skb->len to crc32_le for a nonlinear socket buffer even though only the linear head is contiguous, because the tagger fails to declare its FCS tailroom. Reaching the flaw requires transmit traffic through the brcm-legacy-fcs tagger with a nonlinear skb; the observed consequence is a KASAN-detected one-byte slab over-read during CRC calculation.

CVSS severityUnavailable
Unscored
EPSS probability0.20%
Next 30 days · Oct 19, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
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Summary

What happened

An out-of-bounds read in the Linux kernel 6.17 Broadcom legacy FCS DSA tagger allows attackers to read past the skb linear head. brcm_leg_fcs_tag_xmit passes skb->len to crc32_le for a nonlinear socket buffer even though only the linear head is contiguous, because the tagger fails to declare its FCS tailroom. Reaching the flaw requires transmit traffic through the brcm-legacy-fcs tagger with a nonlinear skb; the observed consequence is a KASAN-detected one-byte slab over-read during CRC calculation.

The record

CVE
CVE-2026-97614
Published
Sep 25, 2026
Updated
Sep 25, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
Unavailable
Attack vector
Unavailable
Privileges
Unavailable

Timeline

How it unfolded

  1. Sep 25, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 25, 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=6.17
  2. Affected versionversion=ef07df397a621707903ef0d294a7df11f80cf206 <3eb5c7e1c154c74568620a25c6751bb8d6d8d728
  3. Affected versionversion=ef07df397a621707903ef0d294a7df11f80cf206 <5be081b83abd3f17d908953b4bb77279f5a149e3
  4. Affected versionversion=ef07df397a621707903ef0d294a7df11f80cf206 <709451db123d90743fa9104b48f324a8e49f8c6f

What conditions does exploitation require?

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

What is affected?

The Linux Kernel Organization · Linuxversion=6.17; version=ef07df397a621707903ef0d294a7df11f80cf206 <3eb5c7e1c154c74568620a25c6751bb8d6d8d728; version=ef07df397a621707903ef0d294a7df11f80cf206 <5be081b83abd3f17d908953b4bb77279f5a149e3; version=ef07df397a621707903ef0d294a7df11f80cf206 <709451db123d90743fa9104b48f324a8e49f8c6f

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.

Activity data is delayed. The latest report is Sep 28, 2026.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 22, 2026Sep 28, 2026
Latest reporting daySep 28, 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.

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Technologies

Your stack

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Your stack

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