github - ghsa-8h4c-r25h-3p7f

ghsa-8h4c-r25h-3p7f

Vulnerability from github

Published

2024-07-30 09:32

Modified

2024-12-10 00:31

Severity ?

5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

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.

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JSON

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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"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/1479eaff1f16983d8fda7c5a08a586c21891087d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/7f79097b0de97a486b137b750d7dd7b20b519d23"
    }
  ],
  "schema_version": "1.4.0",
  "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

Vulnerability from cvelistv5

Published

2024-07-30 07:46

Modified

2025-01-17 15:56

Severity ?

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.

References

▼	URL	Tags
	https://git.kernel.org/stable/c/7f79097b0de97a486b137b750d7dd7b20b519d23
	https://git.kernel.org/stable/c/1479eaff1f16983d8fda7c5a08a586c21891087d

Impacted products

Vendor

Product

Version

▼

Linux

Version: c196906d50e360d82ed9aa5596a9d0ce89b7ab78
Version: c196906d50e360d82ed9aa5596a9d0ce89b7ab78

Linux

Version: 5.16

Show details on NVD website

JSON

To clipboard

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          "dateUpdated": "2024-08-02T04:54:32.474Z",
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Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
Confirmed: The vulnerability is confirmed from an analyst perspective.
Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
Patched: This vulnerability was successfully patched by the user reporting the sighting.
Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
Not confirmed: The user expresses doubt about the veracity of the vulnerability.
Not patched: This vulnerability was not successfully patched by the user reporting the sighting.

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