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CVE-2026-74469 sctp: prevent peer transport count overflow

🗓️ 15 Aug 2026 12:27:06Reported by LinuxType 
cvelist
 cvelist
🔗 www.cve.org👁 29 Views

SCTP transport_count overflow wraps to zero, causing 8 MiB buffer overflow in sock_diag peer dump.

Related
Affected
Refs
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "net/sctp/associola.c"
    ],
    "versions": [
      {
        "version": "8f840e47f190cbe61a96945c13e9551048d42cef",
        "lessThan": "b453e00da1211e997b82743d28af7714c59c05c8",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "8f840e47f190cbe61a96945c13e9551048d42cef",
        "lessThan": "dfea32dd76f390e3155177b0038cc47b01386198",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "8f840e47f190cbe61a96945c13e9551048d42cef",
        "lessThan": "80f48523a0fe42db2e7375dff4e38a25c117090a",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "8f840e47f190cbe61a96945c13e9551048d42cef",
        "lessThan": "546221b86ceeba0d8fec92d46a0604bb7b62be07",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "8f840e47f190cbe61a96945c13e9551048d42cef",
        "lessThan": "09e722030e8148ba4ed1e42c6b2ea57bda9f9895",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "8f840e47f190cbe61a96945c13e9551048d42cef",
        "lessThan": "4ba5bf7ed50f235ea4581de8e7a0002f4ed287b0",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "8f840e47f190cbe61a96945c13e9551048d42cef",
        "lessThan": "6201cd1d70f1670c5b31ac506e7ab2fa7b8e7f75",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "8f840e47f190cbe61a96945c13e9551048d42cef",
        "lessThan": "bd0e9289e2642f6a5c54faad304ce0f41e926d22",
        "status": "affected",
        "versionType": "git"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "net/sctp/associola.c"
    ],
    "versions": [
      {
        "version": "4.7",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "4.7",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.10.265",
        "lessThanOrEqual": "5.10.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.15.216",
        "lessThanOrEqual": "5.15.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.1.183",
        "lessThanOrEqual": "6.1.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.6.151",
        "lessThanOrEqual": "6.6.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.12.103",
        "lessThanOrEqual": "6.12.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18.44",
        "lessThanOrEqual": "6.18.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.1.8",
        "lessThanOrEqual": "7.1.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.2",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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19 Aug 2026 16:37Current
CVSS 3.18.8
EPSS0.00469
29