CVE-2026-72401 (GCVE-0-2026-72401)

Vulnerability from cvelistv5 – Published: 2026-08-15 05:56 – Updated: 2026-08-17 05:13
VLAI
Title
bpf: Fix insn_aux_data leak on verifier err_free_env path
Summary
In the Linux kernel, the following vulnerability has been resolved: bpf: Fix insn_aux_data leak on verifier err_free_env path When bpf_check() allocates env->insn_aux_data successfully but later fails to allocate env->succ, it jumps directly to err_free_env. The existing vfree(env->insn_aux_data) sits before the err_free_env label, so that direct jump bypasses it and leaks insn_aux_data. Move vfree(env->insn_aux_data) into err_free_env so all early and late exit paths release it consistently.
Severity
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 2f69c5685427308d2f312646779313f3677536bc , < d8df91756890de058646597367507b239a6d2025 (git)
Affected: 2f69c5685427308d2f312646779313f3677536bc , < 26490a375cb9be9bac96b5171610fd85ca6c2305 (git)
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Linux Linux Affected: 6.19
Unaffected: 0 , < 6.19 (semver)
Unaffected: 7.1.5 , ≤ 7.1.* (semver)
Unaffected: 7.2 , ≤ * (original_commit_for_fix)
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          "programFiles": [
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Fix insn_aux_data leak on verifier err_free_env path\n\nWhen bpf_check() allocates env-\u003einsn_aux_data successfully but later\nfails to allocate env-\u003esucc, it jumps directly to err_free_env.\n\nThe existing vfree(env-\u003einsn_aux_data) sits before the err_free_env\nlabel, so that direct jump bypasses it and leaks insn_aux_data.\n\nMove vfree(env-\u003einsn_aux_data) into err_free_env so all early and late\nexit paths release it consistently."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-17T05:13:58.017Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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        {
          "url": "https://git.kernel.org/stable/c/26490a375cb9be9bac96b5171610fd85ca6c2305"
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    "assignerShortName": "Linux",
    "cveId": "CVE-2026-72401",
    "datePublished": "2026-08-15T05:56:26.197Z",
    "dateReserved": "2026-08-09T03:40:39.925Z",
    "dateUpdated": "2026-08-17T05:13:58.017Z",
    "state": "PUBLISHED"
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            "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Fix insn_aux_data leak on verifier err_free_env path\n\nWhen bpf_check() allocates env-\u003einsn_aux_data successfully but later\nfails to allocate env-\u003esucc, it jumps directly to err_free_env.\n\nThe existing vfree(env-\u003einsn_aux_data) sits before the err_free_env\nlabel, so that direct jump bypasses it and leaks insn_aux_data.\n\nMove vfree(env-\u003einsn_aux_data) into err_free_env so all early and late\nexit paths release it consistently."
          }
        ],
        "id": "CVE-2026-72401",
        "lastModified": "2026-08-17T06:19:06.777",
        "metrics": {},
        "published": "2026-08-15T06:22:13.687",
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      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2026-72401",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2026-72401.json",
      "version": "2"
    }
  }
}



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