CVE-2026-97954Hinoki check available

RDS-TCP stream corruption via oversized scatterlist mapping

Published Sep 25, 2026 · Updated Sep 25, 2026

Denial of service in the Linux kernel's RDS-TCP stack allows attackers to hang RDS workloads and corrupt streams on large-page systems. The rds_message_map_pages() function assigns PAGE_SIZE bytes to every scatterlist entry, so the final entry can transmit bytes beyond the 8,192-byte congestion map as later message headers. Only systems with page sizes above 8,192 bytes are exposed; 4K-page systems are unaffected, and successful triggering disrupts RDS-TCP communication.

CVSS severityUnavailable
Unscored
EPSS probability0.18%
Next 30 days · Oct 19, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
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Summary

What happened

Denial of service in the Linux kernel's RDS-TCP stack allows attackers to hang RDS workloads and corrupt streams on large-page systems. The rds_message_map_pages() function assigns PAGE_SIZE bytes to every scatterlist entry, so the final entry can transmit bytes beyond the 8,192-byte congestion map as later message headers. Only systems with page sizes above 8,192 bytes are exposed; 4K-page systems are unaffected, and successful triggering disrupts RDS-TCP communication.

The record

CVE
CVE-2026-97954
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=2.6.30
  2. Affected versionversion=7875e18e09961d29f30424c5e2e48e704dc3789b <2ac09b5353fe6858411fdc8c6efa60d832e20f13
  3. Affected versionversion=7875e18e09961d29f30424c5e2e48e704dc3789b <8cbfeb54bf781d9693778aaba133bb58c0285332
  4. Affected versionversion=7875e18e09961d29f30424c5e2e48e704dc3789b <ef3565a418b8309589fe9b5df098a892c9146b06
  5. Affected versionversion=7875e18e09961d29f30424c5e2e48e704dc3789b <f4649a716be20ef9272f97a166dea1825ba5b554

What conditions does exploitation require?

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

What is affected?

The Linux Kernel Organization · Linuxversion=2.6.30; version=7875e18e09961d29f30424c5e2e48e704dc3789b <2ac09b5353fe6858411fdc8c6efa60d832e20f13; version=7875e18e09961d29f30424c5e2e48e704dc3789b <8cbfeb54bf781d9693778aaba133bb58c0285332; version=7875e18e09961d29f30424c5e2e48e704dc3789b <ef3565a418b8309589fe9b5df098a892c9146b06; version=7875e18e09961d29f30424c5e2e48e704dc3789b <f4649a716be20ef9272f97a166dea1825ba5b554

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.

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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