Vulnerability-Lookup

GHSA-8H4C-R25H-3P7F

Vulnerability from github – Published: 2024-07-30 09:32 – Updated: 2024-12-10 00:31

Details

In the Linux kernel, the following vulnerability has been resolved:

bpf: mark bpf_dummy_struct_ops.test_1 parameter as nullable

Test case dummy_st_ops/dummy_init_ret_value passes NULL as the first parameter of the test_1() function. Mark this parameter as nullable to make verifier aware of such possibility. Otherwise, NULL check in the test_1() code:

  SEC("struct_ops/test_1")
  int BPF_PROG(test_1, struct bpf_dummy_ops_state *state)
  {
        if (!state)
                return ...;

        ... access state ...
  }

Might be removed by verifier, thus triggering NULL pointer dereference under certain conditions.

Severity

5.5 (Medium)


                  
                    CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

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  "affected": [],
  "aliases": [
    "CVE-2024-42151"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-476"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-07-30T08:15:06Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: mark bpf_dummy_struct_ops.test_1 parameter as nullable\n\nTest case dummy_st_ops/dummy_init_ret_value passes NULL as the first\nparameter of the test_1() function. Mark this parameter as nullable to\nmake verifier aware of such possibility.\nOtherwise, NULL check in the test_1() code:\n\n      SEC(\"struct_ops/test_1\")\n      int BPF_PROG(test_1, struct bpf_dummy_ops_state *state)\n      {\n            if (!state)\n                    return ...;\n\n            ... access state ...\n      }\n\nMight be removed by verifier, thus triggering NULL pointer dereference\nunder certain conditions.",
  "id": "GHSA-8h4c-r25h-3p7f",
  "modified": "2024-12-10T00:31:26Z",
  "published": "2024-07-30T09:32:03Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-42151"
    },
    {
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      "url": "https://git.kernel.org/stable/c/1479eaff1f16983d8fda7c5a08a586c21891087d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/7f79097b0de97a486b137b750d7dd7b20b519d23"
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  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2024-42151 (GCVE-0-2024-42151)

Vulnerability from cvelistv5 – Published: 2024-07-30 07:46 – Updated: 2026-05-11 20:27

Title

bpf: mark bpf_dummy_struct_ops.test_1 parameter as nullable

Summary

In the Linux kernel, the following vulnerability has been resolved: bpf: mark bpf_dummy_struct_ops.test_1 parameter as nullable Test case dummy_st_ops/dummy_init_ret_value passes NULL as the first parameter of the test_1() function. Mark this parameter as nullable to make verifier aware of such possibility. Otherwise, NULL check in the test_1() code: SEC("struct_ops/test_1") int BPF_PROG(test_1, struct bpf_dummy_ops_state *state) { if (!state) return ...; ... access state ... } Might be removed by verifier, thus triggering NULL pointer dereference under certain conditions.

Severity

No CVSS data available.

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2024-09-10 16:15 UTC

Assigner

Linux mitre root

References

2 references

URL	Tags
https://git.kernel.org/stable/c/7f79097b0de97a486…
https://git.kernel.org/stable/c/1479eaff1f16983d8…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 2cd3e3772e41377f32d6eea643e0590774e9187c , < 7f79097b0de97a486b137b750d7dd7b20b519d23 (git) Affected: 2cd3e3772e41377f32d6eea643e0590774e9187c , < 1479eaff1f16983d8fda7c5a08a586c21891087d (git)
Linux	Linux	Affected: 6.8 Unaffected: 0 , < 6.8 (semver) Unaffected: 6.9.9 , ≤ 6.9.* (semver) Unaffected: 6.10 , ≤ * (original_commit_for_fix)

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Sightings

Author	Source	Type	Date	Other

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Confirmed: The vulnerability has been validated from an analyst's perspective.
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Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

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The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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GHSA-8H4C-R25H-3P7F

CVE-2024-42151 (GCVE-0-2024-42151)

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