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CVE-2026-43074 eventpoll: defer struct eventpoll free to RCU grace period

🗓️ 06 May 2026 07:21:58Reported by LinuxType 
cvelist
 cvelist
🔗 www.cve.org👁 24 Views

CVE-2026-43074: eventpoll defers freeing the eventpoll struct to the RCU grace period to prevent use after free.

Related
Affected
Refs
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "fs/eventpoll.c"
    ],
    "versions": [
      {
        "version": "f2451def095c1743adcfcb0cb5dadc86034e162a",
        "lessThan": "902120be4f44947df6311002addc7faf69bdbff1",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "a1f93804449d13f97dabd4b996817de4bf1ed67a",
        "lessThan": "a6d57084372161f86660bc4607784420e00efe2c",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "58c9b016e12855286370dfb704c08498edbc857a",
        "lessThan": "a6566cd33f6f967a7651ebf2ce0dd31572e319cf",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "58c9b016e12855286370dfb704c08498edbc857a",
        "lessThan": "5b1173b165421561db29f30afc7e97d940a398a9",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "58c9b016e12855286370dfb704c08498edbc857a",
        "lessThan": "7e8083f5eeedab0f460063b9c2c14c9a4e71a427",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "58c9b016e12855286370dfb704c08498edbc857a",
        "lessThan": "ae0bb9c1fb7c2594519aeeb096cf2c3b7837b322",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "58c9b016e12855286370dfb704c08498edbc857a",
        "lessThan": "07712db80857d5d09ae08f3df85a708ecfc3b61f",
        "status": "affected",
        "versionType": "git"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "fs/eventpoll.c"
    ],
    "versions": [
      {
        "version": "6.4",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "6.4",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.6.136",
        "lessThanOrEqual": "6.6.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.12.83",
        "lessThanOrEqual": "6.12.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18.24",
        "lessThanOrEqual": "6.18.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.19.14",
        "lessThanOrEqual": "6.19.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.0",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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01 Jun 2026 16:14Current
CVSS 3.17.8
EPSS0.00129
24