CVE-2026-68376 sctp: fix auth_hmacs array size in struct sctp_cookie

[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "include/net/sctp/structs.h"
    ],
    "versions": [
      {
        "version": "1f485649f52929d9937b346a920a522a7363e202",
        "lessThan": "0b4414e43e0861d67276031cc21401d7e87de3da",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "1f485649f52929d9937b346a920a522a7363e202",
        "lessThan": "d0a59ba58578e2b330fff80a44fe519f3ba7d8c7",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "1f485649f52929d9937b346a920a522a7363e202",
        "lessThan": "a8d20ba0ab518c9ccbcde258f25fc1ee6e51d5db",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "1f485649f52929d9937b346a920a522a7363e202",
        "lessThan": "3aa40c3bccac2312ea7cf97f329190637f972b5d",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "1f485649f52929d9937b346a920a522a7363e202",
        "lessThan": "e0b5252a59383b77d1b8dbeda00b7184dd95f4d3",
        "status": "affected",
        "versionType": "git"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "include/net/sctp/structs.h"
    ],
    "versions": [
      {
        "version": "2.6.24",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "2.6.24",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.6.148",
        "lessThanOrEqual": "6.6.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.12.101",
        "lessThanOrEqual": "6.12.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18.42",
        "lessThanOrEqual": "6.18.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.1.6",
        "lessThanOrEqual": "7.1.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.2-rc4",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]