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CVE-2023-53559 ip_vti: fix potential slab-use-after-free in decode_session6

🗓️ 04 Oct 2025 15:17:03Reported by LinuxType 
cvelist
 cvelist
🔗 www.cve.org👁 7 Views

Fix slab use after free in ip_vti by clearing skb control block before sending IPv6 packets via sfb.

Related
Affected
Refs
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "net/ipv4/ip_vti.c"
    ],
    "versions": [
      {
        "version": "f855691975bb06373a98711e4cfe2c224244b536",
        "lessThan": "82fb41c5de243e7dfa90f32ca58e35adaff56c1d",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "f855691975bb06373a98711e4cfe2c224244b536",
        "lessThan": "7dfe23659f3677c08a60a0056cda2d91a79c15ca",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "f855691975bb06373a98711e4cfe2c224244b536",
        "lessThan": "d34c30442d5e53a33cde79ca163320dbe2432cbd",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "f855691975bb06373a98711e4cfe2c224244b536",
        "lessThan": "0b4d69539fdea138af2befe08893850c89248068",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "f855691975bb06373a98711e4cfe2c224244b536",
        "lessThan": "e1e04cc2ef2c0c0866c19f5627149a76c2baae32",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "f855691975bb06373a98711e4cfe2c224244b536",
        "lessThan": "2b05bf5dc437f7891dd409a3eaf5058459391c7a",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "f855691975bb06373a98711e4cfe2c224244b536",
        "lessThan": "78e397a43e1c47321a4679cc49a6c4530bf820b9",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "f855691975bb06373a98711e4cfe2c224244b536",
        "lessThan": "6018a266279b1a75143c7c0804dd08a5fc4c3e0b",
        "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/ipv4/ip_vti.c"
    ],
    "versions": [
      {
        "version": "3.19",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "3.19",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "4.14.324",
        "lessThanOrEqual": "4.14.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "4.19.293",
        "lessThanOrEqual": "4.19.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.4.255",
        "lessThanOrEqual": "5.4.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.10.192",
        "lessThanOrEqual": "5.10.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.15.128",
        "lessThanOrEqual": "5.15.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.1.47",
        "lessThanOrEqual": "6.1.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.4.12",
        "lessThanOrEqual": "6.4.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.5",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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