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CVE-2026-74465 net: openvswitch: fix potential UAF on meter attach failure

🗓️ 15 Aug 2026 12:27:04Reported by LinuxType 
cvelist
 cvelist
🔗 www.cve.org👁 37 Views

Use-after-free in openvswitch meter attach via premature kfree before RCU readers finish.

Related
Affected
Refs
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "net/openvswitch/meter.c"
    ],
    "versions": [
      {
        "version": "c7c4c44c9a95d87e50ced38f7480e779cb472174",
        "lessThan": "496f3013c6ff759249abcfb2da2361c1a3e2e66d",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "c7c4c44c9a95d87e50ced38f7480e779cb472174",
        "lessThan": "ddc0ef4217cc697c6ba1a295cc1ea42423ec68ac",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "c7c4c44c9a95d87e50ced38f7480e779cb472174",
        "lessThan": "b0de3b58dac3b02b528f72ee0397728aed11f993",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "c7c4c44c9a95d87e50ced38f7480e779cb472174",
        "lessThan": "0310d1fa7f9debd0d89629e9f14c7975a47eaa9a",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "c7c4c44c9a95d87e50ced38f7480e779cb472174",
        "lessThan": "4d03e5fa3fbb1df15258a1eb3d6963f0d65659b3",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "c7c4c44c9a95d87e50ced38f7480e779cb472174",
        "lessThan": "90623c9499627803ef3f04fa25a3199402d4fb95",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "c7c4c44c9a95d87e50ced38f7480e779cb472174",
        "lessThan": "431a295d93f76fbdb6a7cfce92a9e3dfee1e5d61",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "c7c4c44c9a95d87e50ced38f7480e779cb472174",
        "lessThan": "a58a2b0ce354df531ebc71fc870058c2feb59f6b",
        "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/openvswitch/meter.c"
    ],
    "versions": [
      {
        "version": "5.8",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "5.8",
        "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 3.17.8
EPSS0.00126
37