Vulnerability-Lookup

GHSA-73M7-QFQ5-GQJ4

Vulnerability from github – Published: 2025-01-06 18:31 – Updated: 2025-01-08 00:30

Details

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

bpf: Fix bpf_get_smp_processor_id() on !CONFIG_SMP

On x86-64 calling bpf_get_smp_processor_id() in a kernel with CONFIG_SMP disabled can trigger the following bug, as pcpu_hot is unavailable:

[ 8.471774] BUG: unable to handle page fault for address: 00000000936a290c [ 8.471849] #PF: supervisor read access in kernel mode [ 8.471881] #PF: error_code(0x0000) - not-present page

Fix by inlining a return 0 in the !CONFIG_SMP case.

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-2024-56768"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-01-06T17:15:43Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Fix bpf_get_smp_processor_id() on !CONFIG_SMP\n\nOn x86-64 calling bpf_get_smp_processor_id() in a kernel with CONFIG_SMP\ndisabled can trigger the following bug, as pcpu_hot is unavailable:\n\n [    8.471774] BUG: unable to handle page fault for address: 00000000936a290c\n [    8.471849] #PF: supervisor read access in kernel mode\n [    8.471881] #PF: error_code(0x0000) - not-present page\n\nFix by inlining a return 0 in the !CONFIG_SMP case.",
  "id": "GHSA-73m7-qfq5-gqj4",
  "modified": "2025-01-08T00:30:49Z",
  "published": "2025-01-06T18:31:04Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-56768"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/23579010cf0a12476e96a5f1acdf78a9c5843657"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f4ab7d74247b0150547cf909b3f6f24ee85183df"
    }
  ],
  "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-2024-56768 (GCVE-0-2024-56768)

Vulnerability from cvelistv5 – Published: 2025-01-06 16:20 – Updated: 2026-05-11 20:58

Title

bpf: Fix bpf_get_smp_processor_id() on !CONFIG_SMP

Summary

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix bpf_get_smp_processor_id() on !CONFIG_SMP On x86-64 calling bpf_get_smp_processor_id() in a kernel with CONFIG_SMP disabled can trigger the following bug, as pcpu_hot is unavailable: [ 8.471774] BUG: unable to handle page fault for address: 00000000936a290c [ 8.471849] #PF: supervisor read access in kernel mode [ 8.471881] #PF: error_code(0x0000) - not-present page Fix by inlining a return 0 in the !CONFIG_SMP case.

Severity

5.5 (Medium)


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

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-10-01 19:56 UTC

CWE

CWE-noinfo Not enough information

Assigner

Linux mitre root

References

2 references

URL	Tags
https://git.kernel.org/stable/c/f4ab7d74247b01505…
https://git.kernel.org/stable/c/23579010cf0a12476…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 1ae6921009e5d72787e07ccc04754514ccf6bc99 , < f4ab7d74247b0150547cf909b3f6f24ee85183df (git) Affected: 1ae6921009e5d72787e07ccc04754514ccf6bc99 , < 23579010cf0a12476e96a5f1acdf78a9c5843657 (git)
Linux	Linux	Affected: 6.10 Unaffected: 0 , < 6.10 (semver) Unaffected: 6.12.8 , ≤ 6.12.* (semver) Unaffected: 6.13 , ≤ * (original_commit_for_fix)

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              "attackComplexity": "LOW",
              "attackVector": "LOCAL",
              "availabilityImpact": "HIGH",
              "baseScore": 5.5,
              "baseSeverity": "MEDIUM",
              "confidentialityImpact": "NONE",
              "integrityImpact": "NONE",
              "privilegesRequired": "LOW",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
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                "timestamp": "2025-10-01T19:56:58.055142Z",
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Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
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.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
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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