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CVE-2026-80521

🗓️ 26 Aug 2026 14:37:02Reported by LinuxType 
cve
 cve
🔗 web.nvd.nist.gov📰️ 2 Media mentions👁 126 Views

Use-after-free in Linux kernel af_unix where GC partially frees a dead SCC via dangling scc_entry.

Related
Detection
Affected
Refs
Social
Vulners
CNA
Node
OR
OR
linuxlinux_kernelRange6.1.141–6.1.189
linuxlinux_kernelRange6.6.93–6.6.158
OR
linuxlinux_kernelRange6.10–6.1.189
linuxlinux_kernelRange6.2.0–6.6.158
linuxlinux_kernelRange6.7.0–6.12.111
linuxlinux_kernelRange6.13.0–6.18.53
linuxlinux_kernelRange6.19.0–7.1.10
linuxlinux_kernelRange7.2.0≥
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "net/unix/garbage.c"
    ],
    "versions": [
      {
        "version": "5dfd283f4651d04dbb70ceb9ae5c4a30eda3c52a",
        "lessThan": "2b6c2842692d08e7acaf32d1eb47f95def35f3fe",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "de7921631ff323369aa63a4324695ab54ea4047e",
        "lessThan": "6fda5c51b8e43a8440f76e65c89d9f95ddb2ef33",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "4090fa373f0e763c43610853d2774b5979915959",
        "lessThan": "1293fd69a50d188a5788b08ba3741a3e86be1608",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "4090fa373f0e763c43610853d2774b5979915959",
        "lessThan": "fe198b077864feafd4aa4b33b1a5ce26f50195a2",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "4090fa373f0e763c43610853d2774b5979915959",
        "lessThan": "e3702470ced94fad74d71e2232f022d2eb752a6d",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "4090fa373f0e763c43610853d2774b5979915959",
        "lessThan": "594d905195024b228c962627ae5ae7c17bd582a4",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "6.1.141",
        "lessThan": "6.1.189",
        "status": "affected",
        "versionType": "semver"
      },
      {
        "version": "6.6.93",
        "lessThan": "6.6.158",
        "status": "affected",
        "versionType": "semver"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "net/unix/garbage.c"
    ],
    "versions": [
      {
        "version": "6.10",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "6.10",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.1.189",
        "lessThanOrEqual": "6.1.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.6.158",
        "lessThanOrEqual": "6.6.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.12.111",
        "lessThanOrEqual": "6.12.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18.53",
        "lessThanOrEqual": "6.18.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.1.10",
        "lessThanOrEqual": "7.1.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.2",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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03 Oct 2026 11:17Current
6.6Medium risk
Vulners AI Score6.6
CVSS 3.17.8
EPSS0.0017
126