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CVE-2023-53221 bpf: Fix memleak due to fentry attach failure

🗓️ 15 Sep 2025 14:21:50Reported by LinuxType 
cvelist
 cvelist
🔗 www.cve.org👁 3 Views

CVE-2023-53221 fixes memory leak from fentry attach failure leaving bpf trampoline images.

Related
Affected
Refs
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "kernel/bpf/trampoline.c"
    ],
    "versions": [
      {
        "version": "e21aa341785c679dd409c8cb71f864c00fe6c463",
        "lessThan": "20109ddd5bea2c24d790debf5d02584ef24c3f5e",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "e21aa341785c679dd409c8cb71f864c00fe6c463",
        "lessThan": "f72c67d1a82dada7d6d504c806e111e913721a30",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "e21aa341785c679dd409c8cb71f864c00fe6c463",
        "lessThan": "6aa27775db63ba8c7c73891c7dfb71ddc230c48d",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "e21aa341785c679dd409c8cb71f864c00fe6c463",
        "lessThan": "108598c39eefbedc9882273ac0df96127a629220",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "e21d2b92354b3cd25dd774ebb0f0e52ff04a7861",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "85d177f56e5256e14b74a65940f981f6e3e8bb32",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "5.10.28",
        "lessThan": "5.11",
        "status": "affected",
        "versionType": "semver"
      },
      {
        "version": "5.11.11",
        "lessThan": "5.12",
        "status": "affected",
        "versionType": "semver"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "kernel/bpf/trampoline.c"
    ],
    "versions": [
      {
        "version": "5.12",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "5.12",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.1.39",
        "lessThanOrEqual": "6.1.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.3.13",
        "lessThanOrEqual": "6.3.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.4.4",
        "lessThanOrEqual": "6.4.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.5",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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23 May 2026 15:28Current
EPSS0.00028
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