net/rds: fix tcp stream corruption with large pages
Key facts
- Attack vector
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- Privileges required
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- User interaction
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- Attack complexity
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- Impact type
- —
- Confidentiality · integrity · availability
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- Fix status
- Partial Red Hat: 1 without a fix
No CVSS vector from any source. Fix status from CNA and Red Hat.
Summary
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.
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Linux | Linux | 2.6.30 and later | 5.10.271, 5.15.222, 6.1.189, 6.6.158, 6.12.111, 6.18.53, 7.2.7, 7.3 | Patch available | CNA |
- Linux VendorLinux Affected 2.6.30 and later Fixed in 5.10.271, 5.15.222, 6.1.189, 6.6.158, 6.12.111, 6.18.53, 7.2.7, 7.3 Patch available CNA
Remediation
- Fix · CNA Linux (Linux) Fixed in 5.10.271, 5.15.222, 6.1.189, 6.6.158, 6.12.111, 6.18.53, 7.2.7, 7.3
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 6 | Affected | No fix planned: Out of support scope |
Not affected: 6 products
- Red Hat Enterprise Linux 10
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 8
- Red Hat Enterprise Linux 9
- Red Hat OpenShift Container Platform 4
- Red Hat OpenShift Container Platform 5
Timeline
- 2026-10-02 Threatist record created from CVE-2026-97954
- 2026-10-03 Alias added: GHSA-hh3g-f497-67jw
- 2026-10-03 Fix available: Linux/Linux@3230961a72b312d0e47101d1428084d0a02bff52, Linux/Linux@348492de88bc6ea06b6f3dd544a7a00d908a807b, Linux/[email protected] +5 · CNA
- 2026-10-03 4 new references · CNA
- 2026-10-19 Fix available: Linux/[email protected] · CNA
- 2026-11-06 Affected versions changed · Red Hat
References
Other 8
- https://git.kernel.org/stable/c/7d7705ce73eac1de1146706d887bc969a48ebb6d
- https://git.kernel.org/stable/c/3230961a72b312d0e47101d1428084d0a02bff52
- https://git.kernel.org/stable/c/ee74a4b42e3a2f9635ba376be9e58311322eebe4
- https://git.kernel.org/stable/c/348492de88bc6ea06b6f3dd544a7a00d908a807b
- https://git.kernel.org/stable/c/ef3565a418b8309589fe9b5df098a892c9146b06
- https://git.kernel.org/stable/c/8cbfeb54bf781d9693778aaba133bb58c0285332
- https://git.kernel.org/stable/c/f4649a716be20ef9272f97a166dea1825ba5b554
- https://git.kernel.org/stable/c/2ac09b5353fe6858411fdc8c6efa60d832e20f13
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Sources
- CVE-2026-97954 · CVE Program
- CVE-2026-97954 · NVD
- FIRST EPSS
- GHSA-hh3g-f497-67jw · GitHub Advisory Database · CC BY 4.0
- CVE-2026-97954 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences