Vulnerability-Lookup

GHSA-9GJM-J93V-M992

Vulnerability from github – Published: 2024-07-29 15:30 – Updated: 2025-10-07 18:31

Details

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

mm: vmalloc: check if a hash-index is in cpu_possible_mask

The problem is that there are systems where cpu_possible_mask has gaps between set CPUs, for example SPARC. In this scenario addr_to_vb_xa() hash function can return an index which accesses to not-possible and not setup CPU area using per_cpu() macro. This results in an oops on SPARC.

A per-cpu vmap_block_queue is also used as hash table, incorrectly assuming the cpu_possible_mask has no gaps. Fix it by adjusting an index to a next possible CPU.

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-2024-41032"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-07-29T15:15:11Z",
    "severity": "MODERATE"
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  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nmm: vmalloc: check if a hash-index is in cpu_possible_mask\n\nThe problem is that there are systems where cpu_possible_mask has gaps\nbetween set CPUs, for example SPARC.  In this scenario addr_to_vb_xa()\nhash function can return an index which accesses to not-possible and not\nsetup CPU area using per_cpu() macro.  This results in an oops on SPARC.\n\nA per-cpu vmap_block_queue is also used as hash table, incorrectly\nassuming the cpu_possible_mask has no gaps.  Fix it by adjusting an index\nto a next possible CPU.",
  "id": "GHSA-9gjm-j93v-m992",
  "modified": "2025-10-07T18:31:01Z",
  "published": "2024-07-29T15:30:40Z",
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      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-41032"
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CVE-2024-41032 (GCVE-0-2024-41032)

Vulnerability from cvelistv5 – Published: 2024-07-29 14:31 – Updated: 2026-08-05 11:34

Title

mm: vmalloc: check if a hash-index is in cpu_possible_mask

Summary

In the Linux kernel, the following vulnerability has been resolved: mm: vmalloc: check if a hash-index is in cpu_possible_mask The problem is that there are systems where cpu_possible_mask has gaps between set CPUs, for example SPARC. In this scenario addr_to_vb_xa() hash function can return an index which accesses to not-possible and not setup CPU area using per_cpu() macro. This results in an oops on SPARC. A per-cpu vmap_block_queue is also used as hash table, incorrectly assuming the cpu_possible_mask has no gaps. Fix it by adjusting an index to a next possible CPU.

Severity

7.8 (High)


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

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2024-09-10 16:23 UTC

Assigner

Linux CNA under the mitre root

CNA scorecard D 53/100 over 6665 records in the last 180 days details

References

3 references

URL	Tags
https://git.kernel.org/stable/c/28acd531c9a365dac…
https://git.kernel.org/stable/c/47f9b6e49b422392f…
https://git.kernel.org/stable/c/a34acf30b19bc4ee3…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 062eacf57ad91b5c272f89dc964fd6dd9715ea7d , < 28acd531c9a365dac01b32e6bc54aed8c1429bcb (git) Affected: 062eacf57ad91b5c272f89dc964fd6dd9715ea7d , < 47f9b6e49b422392fb0e348a65eb925103ba1882 (git) Affected: 062eacf57ad91b5c272f89dc964fd6dd9715ea7d , < a34acf30b19bc4ee3ba2f1082756ea2604c19138 (git)
Linux	Linux	Affected: 6.4 Unaffected: 0 , < 6.4 (semver) Unaffected: 6.6.41 , ≤ 6.6.* (semver) Unaffected: 6.9.10 , ≤ 6.9.* (semver) Unaffected: 6.10 , ≤ * (original_commit_for_fix)

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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.

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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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