github - ghsa-crwm-whhx-38v8

ghsa-crwm-whhx-38v8

Vulnerability from github

Published

2024-09-18 09:30

Modified

2024-09-18 09:30

Details

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

bpf: Remove tst_run from lwt_seg6local_prog_ops.

The syzbot reported that the lwt_seg6 related BPF ops can be invoked via bpf_test_run() without without entering input_action_end_bpf() first.

Martin KaFai Lau said that self test for BPF_PROG_TYPE_LWT_SEG6LOCAL probably didn't work since it was introduced in commit 04d4b274e2a ("ipv6: sr: Add seg6local action End.BPF"). The reason is that the per-CPU variable seg6_bpf_srh_states::srh is never assigned in the self test case but each BPF function expects it.

Remove test_run for BPF_PROG_TYPE_LWT_SEG6LOCAL.

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{
  "affected": [],
  "aliases": [
    "CVE-2024-46754"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-09-18T08:15:04Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Remove tst_run from lwt_seg6local_prog_ops.\n\nThe syzbot reported that the lwt_seg6 related BPF ops can be invoked\nvia bpf_test_run() without without entering input_action_end_bpf()\nfirst.\n\nMartin KaFai Lau said that self test for BPF_PROG_TYPE_LWT_SEG6LOCAL\nprobably didn\u0027t work since it was introduced in commit 04d4b274e2a\n(\"ipv6: sr: Add seg6local action End.BPF\"). The reason is that the\nper-CPU variable seg6_bpf_srh_states::srh is never assigned in the self\ntest case but each BPF function expects it.\n\nRemove test_run for BPF_PROG_TYPE_LWT_SEG6LOCAL.",
  "id": "GHSA-crwm-whhx-38v8",
  "modified": "2024-09-18T09:30:37Z",
  "published": "2024-09-18T09:30:37Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-46754"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9cd15511de7c619bbd0f54bb3f28e6e720ded5d6"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c13fda93aca118b8e5cd202e339046728ee7dddb"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

cve-2024-46754

Vulnerability from cvelistv5

Published

2024-09-18 07:12

Modified

2024-12-19 09:22

Severity ?

Summary

In the Linux kernel, the following vulnerability has been resolved: bpf: Remove tst_run from lwt_seg6local_prog_ops. The syzbot reported that the lwt_seg6 related BPF ops can be invoked via bpf_test_run() without without entering input_action_end_bpf() first. Martin KaFai Lau said that self test for BPF_PROG_TYPE_LWT_SEG6LOCAL probably didn't work since it was introduced in commit 04d4b274e2a ("ipv6: sr: Add seg6local action End.BPF"). The reason is that the per-CPU variable seg6_bpf_srh_states::srh is never assigned in the self test case but each BPF function expects it. Remove test_run for BPF_PROG_TYPE_LWT_SEG6LOCAL.

References

▼	URL	Tags
	https://git.kernel.org/stable/c/9cd15511de7c619bbd0f54bb3f28e6e720ded5d6
	https://git.kernel.org/stable/c/c13fda93aca118b8e5cd202e339046728ee7dddb

Impacted products

Vendor

Product

Version

▼

Linux

Version: 004d4b274e2a1a895a0e5dc66158b90a7d463d44
Version: 004d4b274e2a1a895a0e5dc66158b90a7d463d44

Linux

Version: 4.18

Show details on NVD website

JSON

To clipboard

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            "other": {
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                "id": "CVE-2024-46754",
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                  },
                  {
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                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-09-29T14:46:48.262114Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2024-09-29T14:47:03.068Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
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        {
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Remove tst_run from lwt_seg6local_prog_ops.\n\nThe syzbot reported that the lwt_seg6 related BPF ops can be invoked\nvia bpf_test_run() without without entering input_action_end_bpf()\nfirst.\n\nMartin KaFai Lau said that self test for BPF_PROG_TYPE_LWT_SEG6LOCAL\nprobably didn\u0027t work since it was introduced in commit 04d4b274e2a\n(\"ipv6: sr: Add seg6local action End.BPF\"). The reason is that the\nper-CPU variable seg6_bpf_srh_states::srh is never assigned in the self\ntest case but each BPF function expects it.\n\nRemove test_run for BPF_PROG_TYPE_LWT_SEG6LOCAL."
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    "datePublished": "2024-09-18T07:12:13.780Z",
    "dateReserved": "2024-09-11T15:12:18.270Z",
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    "state": "PUBLISHED"
  },
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  "dataVersion": "5.1"
}

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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