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CVE-2026-74490 tipc: avoid use-after-free in poll trace queue dumps

🗓️ 15 Aug 2026 12:27:20Reported by LinuxType 
cvelist
 cvelist
🔗 www.cve.org👁 33 Views

TIPC poll tracepoint dereferences stale skb without socket lock, causing use-after-free in queue dumps.

Related
Affected
Refs
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "net/tipc/socket.c"
    ],
    "versions": [
      {
        "version": "b4b9771bcbbd5839b0f77aba55e2f85989ed6779",
        "lessThan": "3cd57c6b210d50fd1f7ac1720442ba5be5dc94f8",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "b4b9771bcbbd5839b0f77aba55e2f85989ed6779",
        "lessThan": "ae7fc824970888b4fdaa076819c9a6f2fcede275",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "b4b9771bcbbd5839b0f77aba55e2f85989ed6779",
        "lessThan": "78706367fe1b98aee0a6de27c62b7f1e3035f38d",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "b4b9771bcbbd5839b0f77aba55e2f85989ed6779",
        "lessThan": "d7940bb6a8e7ab28f972c2875cb05783216312dc",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "b4b9771bcbbd5839b0f77aba55e2f85989ed6779",
        "lessThan": "5e82beba4bc1f91d0e64c9c43f2b2fa9cd1c2a7d",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "b4b9771bcbbd5839b0f77aba55e2f85989ed6779",
        "lessThan": "bed792737b5f1ba773054dbe984502958bdfe6ce",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "b4b9771bcbbd5839b0f77aba55e2f85989ed6779",
        "lessThan": "ac2f787980fdf4364cd5651a4c8128e59b8de3aa",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "b4b9771bcbbd5839b0f77aba55e2f85989ed6779",
        "lessThan": "b4f1719dfea023220e0e6bd892b087d76b2a6a49",
        "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/tipc/socket.c"
    ],
    "versions": [
      {
        "version": "5.0",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "5.0",
        "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
EPSS0.00455
33