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NVD / CVE Program· CNA Linux

CVE-2026-97954: net/rds: fix tcp stream corruption with large pages

Noroxi assessment

Priority: Monitor (action score 0/100)

  • The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
  • Probability of exploitation in the next 30 days: 0.17% (FIRST EPSS).
  • Fixed version: Linux Linux 2ac09b5353fe6858411fdc8c6efa60d832e20f13, 3230961a72b312d0e47101d1428084d0a02bff52, 348492de88bc6ea06b6f3dd544a7a00d908a807b; azl3 kernel 6.6.157.1-1 on Azure Linux 3.0 6.6.158.1-1.
  • Mentioned 1 time in Turkish national cyber security advisories (siberguvenlik.gov.tr).

Low priority for now. Upgrade to Linux Linux 2ac09b5353fe6858411fdc8c6efa60d832e20f13, 3230961a72b312d0e47101d1428084d0a02bff52, 348492de88bc6ea06b6f3dd544a7a00d908a807b; azl3 kernel 6.6.157.1-1 on Azure Linux 3.0 6.6.158.1-1 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

In the Linux kernel, the following vulnerability has been resolved: net/rds: fix tcp stream corruption with large pages rds_message_map_pages() assigns PAGE_SIZE bytes to every scatterlist entry, even when total_len ends in a partial page. The RDS congestion map is defined as 8192 bytes, so on systems with PAGE_SIZE greater than 8192 the scatterlist maps bytes beyond the end of the congestion map. RDS-TCP transmits the SG contents according to those lengths, so the extra bytes become part of the TCP RDS stream and are interpreted as subsequent RDS message headers, corrupting the stream. Limit the final scatterlist mapping to the number of bytes remaining. This has no effect on systems with a 4K page size and allows RDS-TCP to be used on systems with 16K and larger page sizes. The RDS selftest, which previously hung on 16K pages, now passes.

—No exploit Fix available
Published
Sep 25, 2026
Updated
Oct 19, 2026
EPSS
0.1% · 7th percentile
CWE
—

Report tools

JSON

Action score

0

Monitor

Low priority for now.

CVSS
0 / 40 · —
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.1%

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • No public exploit code on record
  • A fix has been released

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When you'll hear from us

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

—

Versions reported by the vendor

Affected version ranges reported by the assigning authority (Linux). Independent of NVD's CPE analysis and usually ahead of it.

  • Linux Linux

    • 2.6.30affected
    • 7875e18e09961d29f30424c5e2e48e704dc3789b and later · before 7d7705ce73eac1de1146706d887bc969a48ebb6daffected · git
    • 7875e18e09961d29f30424c5e2e48e704dc3789b and later · before 3230961a72b312d0e47101d1428084d0a02bff52affected · git
    • 7875e18e09961d29f30424c5e2e48e704dc3789b and later · before ee74a4b42e3a2f9635ba376be9e58311322eebe4affected · git
    • 7875e18e09961d29f30424c5e2e48e704dc3789b and later · before 348492de88bc6ea06b6f3dd544a7a00d908a807baffected · git
    • 7875e18e09961d29f30424c5e2e48e704dc3789b and later · before ef3565a418b8309589fe9b5df098a892c9146b06affected · git
    • 7875e18e09961d29f30424c5e2e48e704dc3789b and later · before 8cbfeb54bf781d9693778aaba133bb58c0285332affected · git
    • 7875e18e09961d29f30424c5e2e48e704dc3789b and later · before f4649a716be20ef9272f97a166dea1825ba5b554affected · git
    • 7875e18e09961d29f30424c5e2e48e704dc3789b and later · before 2ac09b5353fe6858411fdc8c6efa60d832e20f13affected · git
    • before 2.6.30not affected · semver

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
Debian:12linuxbefore 6.1.190-16.1.190-1
Debian:12linux-6.12before 6.12.111-1~deb12u16.12.111-1~deb12u1
Debian:13linuxbefore 6.12.111-16.12.111-1
Debian:14linuxbefore 7.2.7-17.2.7-1

Same product

linux: all records

Other highest-scoring records for the same primary product.

  • CVE-2026-74705udp: fix potential use-after-free in tunnel segmentation
    40Plan
  • CVE-2026-74612veth: fix skb length accounting after XDP frag adjustment
    40Plan
  • CVE-2026-74475vxlan: use neigh_ha_snapshot() in route_shortcircuit()
    40Plan

Published before and after this one in the same product

  • ← EarlierCVE-2026-97952Sep 25, 2026 · sunvdc: unmap LDC cookies when the descriptor send fails
    0Monitor
  • ← EarlierCVE-2026-97953Sep 25, 2026 · net: stmmac: fix TX descriptor availability check for TSO traffic
    28Monitor
  • Later →CVE-2026-97955Sep 25, 2026 · net: mana: restore the XDP program pointer when pre-allocation fails
    0Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
Linux Linux2ac09b5353fe6858411fdc8c6efa60d832e20f13Vendor (CNA)
Linux Linux3230961a72b312d0e47101d1428084d0a02bff52Vendor (CNA)
Linux Linux348492de88bc6ea06b6f3dd544a7a00d908a807bVendor (CNA)
Linux Linux7d7705ce73eac1de1146706d887bc969a48ebb6dVendor (CNA)
Linux Linux8cbfeb54bf781d9693778aaba133bb58c0285332Vendor (CNA)
Linux Linuxee74a4b42e3a2f9635ba376be9e58311322eebe4Vendor (CNA)
Linux Linuxef3565a418b8309589fe9b5df098a892c9146b06Vendor (CNA)
Linux Linuxf4649a716be20ef9272f97a166dea1825ba5b554Vendor (CNA)
azl3 kernel 6.6.157.1-1 on Azure Linux 3.06.6.158.1-1 · Release NotesMicrosoft (MSRC)
debian:linux6.1.190-1 · Debian:12Package registry (OSV)
debian:linux6.12.111-1 · Debian:13Package registry (OSV)
debian:linux-6.126.12.111-1~deb12u1 · Debian:12Package registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

National notice (Türkiye Cybersecurity Directorate / USOM)

Official security notices citing this record; remediation advice is on the agency's page.

All national notices →

Technical details

No CVSS vector for this record, so attack conditions can't be derived.

Weakness class (CWE)

—

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

MITRE has no CAPEC/ATT&CK mapping for this CWE.

Change log

  1. Fix✗ → ✓

For records you follow, these changes also arrive as notifications. →

References

Show all references (7 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records