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CVE-2026-72402 (GCVE-0-2026-72402)

Vulnerability from cvelistv5 – Published: 2026-08-15 05:56 – Updated: 2026-08-17 05:13
VLAI
Title
bpf: Mask pseudo pointer values in verifier logs
Summary
In the Linux kernel, the following vulnerability has been resolved: bpf: Mask pseudo pointer values in verifier logs print_bpf_insn() masks ldimm64 immediates for pointer-bearing pseudo sources when pointer leaks are not allowed, but the mask only covers BPF_PSEUDO_MAP_FD and BPF_PSEUDO_MAP_VALUE. BPF_PSEUDO_MAP_IDX, BPF_PSEUDO_MAP_IDX_VALUE, and BPF_PSEUDO_BTF_ID can also be resolved to kernel pointer values before the verifier log prints the instruction. Include them in the existing pointer classification so the log prints 0x0 instead of the rewritten address.
Severity
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 4976b718c3551faba2c0616ef55ebeb74db1c5ca , < 1c53d16b174dd9e02243fc0e85089e2aa6a0d21a (git)
Affected: 4976b718c3551faba2c0616ef55ebeb74db1c5ca , < 72a85e9464a5332fb2cd7efd26d9295275ceda2d (git)
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Linux Linux Affected: 5.10
Unaffected: 0 , < 5.10 (semver)
Unaffected: 7.1.5 , ≤ 7.1.* (semver)
Unaffected: 7.2 , ≤ * (original_commit_for_fix)
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                  "versionStartIncluding": "5.10",
                  "vulnerable": true
                },
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                  "versionEndExcluding": "7.2",
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                  "vulnerable": true
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              "operator": "OR"
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          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Mask pseudo pointer values in verifier logs\n\nprint_bpf_insn() masks ldimm64 immediates for pointer-bearing pseudo\nsources when pointer leaks are not allowed, but the mask only covers\nBPF_PSEUDO_MAP_FD and BPF_PSEUDO_MAP_VALUE.\n\nBPF_PSEUDO_MAP_IDX, BPF_PSEUDO_MAP_IDX_VALUE, and BPF_PSEUDO_BTF_ID can\nalso be resolved to kernel pointer values before the verifier log prints\nthe instruction. Include them in the existing pointer classification so\nthe log prints 0x0 instead of the rewritten address."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-17T05:13:59.131Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/1c53d16b174dd9e02243fc0e85089e2aa6a0d21a"
        },
        {
          "url": "https://git.kernel.org/stable/c/72a85e9464a5332fb2cd7efd26d9295275ceda2d"
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      ],
      "title": "bpf: Mask pseudo pointer values in verifier logs",
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  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-72402",
    "datePublished": "2026-08-15T05:56:26.816Z",
    "dateReserved": "2026-08-09T03:40:39.925Z",
    "dateUpdated": "2026-08-17T05:13:59.131Z",
    "state": "PUBLISHED"
  },
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  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
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      "date": "2026-09-04",
      "epss": "0.00189",
      "percentile": "0.08612"
    },
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    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-08-18T10:42:53+00:00",
      "cve": "CVE-2026-72402",
      "id": "CVE-2026-72402",
      "initial_release_date": "2026-08-15T00:00:00+00:00",
      "product_status:known_affected": "232",
      "product_status:known_not_affected": "42",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: bpf: Mask pseudo pointer values in verifier logs",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-72402.json",
      "version": "3"
    }
  }
}



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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


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