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net/rds: fix tcp stream corruption with large pages

Type: advisorySource: Official CVE List1 source record

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.

Announced Source revision 1
Original source ↗

CVE-2026-97954

Primary source · Revision 1

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: cve:CVE-2026-97954

Linux

Source reference: /containers/cna/affected/0/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Linux

Source reference: /containers/cna/affected/1/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "7875e18e09961d29f30424c5e2e48e704dc3789b",
        "lessThan": "7d7705ce73eac1de1146706d887bc969a48ebb6d",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "7875e18e09961d29f30424c5e2e48e704dc3789b",
        "lessThan": "3230961a72b312d0e47101d1428084d0a02bff52",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "7875e18e09961d29f30424c5e2e48e704dc3789b",
        "lessThan": "ee74a4b42e3a2f9635ba376be9e58311322eebe4",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "7875e18e09961d29f30424c5e2e48e704dc3789b",
        "lessThan": "348492de88bc6ea06b6f3dd544a7a00d908a807b",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "7875e18e09961d29f30424c5e2e48e704dc3789b",
        "lessThan": "ef3565a418b8309589fe9b5df098a892c9146b06",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "7875e18e09961d29f30424c5e2e48e704dc3789b",
        "lessThan": "8cbfeb54bf781d9693778aaba133bb58c0285332",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "7875e18e09961d29f30424c5e2e48e704dc3789b",
        "lessThan": "f4649a716be20ef9272f97a166dea1825ba5b554",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "7875e18e09961d29f30424c5e2e48e704dc3789b",
        "lessThan": "2ac09b5353fe6858411fdc8c6efa60d832e20f13",
        "versionType": "git"
      }
    ],
    "programFiles": [
      "net/rds/message.c"
    ],
    "defaultStatus": "unaffected"
  },
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "2.6.30"
      },
      {
        "status": "unaffected",
        "version": "0",
        "lessThan": "2.6.30",
        "versionType": "semver"
      },
      {
        "status": "unaffected",
        "version": "5.10.271",
        "versionType": "semver",
        "lessThanOrEqual": "5.10.*"
      },
      {
        "status": "unaffected",
        "version": "5.15.222",
        "versionType": "semver",
        "lessThanOrEqual": "5.15.*"
      },
      {
        "status": "unaffected",
        "version": "6.1.189",
        "versionType": "semver",
        "lessThanOrEqual": "6.1.*"
      },
      {
        "status": "unaffected",
        "version": "6.6.158",
        "versionType": "semver",
        "lessThanOrEqual": "6.6.*"
      },
      {
        "status": "unaffected",
        "version": "6.12.111",
        "versionType": "semver",
        "lessThanOrEqual": "6.12.*"
      },
      {
        "status": "unaffected",
        "version": "6.18.53",
        "versionType": "semver",
        "lessThanOrEqual": "6.18.*"
      },
      {
        "status": "unaffected",
        "version": "7.2.7",
        "versionType": "semver",
        "lessThanOrEqual": "7.2.*"
      },
      {
        "status": "unaffected",
        "version": "7.3",
        "versionType": "original_commit_for_fix",
        "lessThanOrEqual": "*"
      }
    ],
    "programFiles": [
      "net/rds/message.c"
    ],
    "defaultStatus": "affected"
  }
]
Related CVEs
CVE-2026-97954

Source reference: /cveMetadata/cveId

Publisher severity

No explicit severity was provided.

Event
#38094 · Revision 1
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Publisher date
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