CVE-2026-97570

Boot crash via out-of-bounds TPA array access

Published Sep 25, 2026 · Updated Sep 25, 2026

Linux 7.1 can crash during boot on a Broadcom 57608 NIC with firmware 233 when bnxt_en processes an out-of-range software TPA ID. bnxt_alloc_agg_idx can map a firmware TPA ID above 31 to an rx_tpa index even though that array contains only 32 entries, so bnxt_rx_pkt dereferences and later writes beyond the allocation. The condition requires the affected kernel, the bnxt_en driver, and the cited NIC and firmware combination; the observed consequence is a boot-time kernel crash.

CVSS severityUnavailable
Unscored
EPSS probability0.44%
Next 30 days · Oct 19, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Linux 7.1 can crash during boot on a Broadcom 57608 NIC with firmware 233 when bnxt_en processes an out-of-range software TPA ID. bnxt_alloc_agg_idx can map a firmware TPA ID above 31 to an rx_tpa index even though that array contains only 32 entries, so bnxt_rx_pkt dereferences and later writes beyond the allocation. The condition requires the affected kernel, the bnxt_en driver, and the cited NIC and firmware combination; the observed consequence is a boot-time kernel crash.

The record

CVE
CVE-2026-97570
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=54c28fab2fa5afd681c9c4b10f4f6da1efdd397a <05cf64d171772c65bcdee76ee7163c35d9f55a89
  2. Affected versionversion=54c28fab2fa5afd681c9c4b10f4f6da1efdd397a <c0aceaf65b70b3c000e70dd867f3a673015f24ca
  3. Affected versionversion=7.1

What conditions does exploitation require?

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

What is affected?

The Linux Kernel Organization · Linuxversion=54c28fab2fa5afd681c9c4b10f4f6da1efdd397a <05cf64d171772c65bcdee76ee7163c35d9f55a89; version=54c28fab2fa5afd681c9c4b10f4f6da1efdd397a <c0aceaf65b70b3c000e70dd867f3a673015f24ca; version=7.1

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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