Vulnerability-Lookup

GHSA-5MQ7-93MW-H965

Vulnerability from github – Published: 2024-09-13 06:30 – Updated: 2026-10-21 15:39

Details

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

pktgen: use cpus_read_lock() in pg_net_init()

I have seen the WARN_ON(smp_processor_id() != cpu) firing in pktgen_thread_worker() during tests.

We must use cpus_read_lock()/cpus_read_unlock() around the for_each_online_cpu(cpu) loop.

While we are at it use WARN_ON_ONCE() to avoid a possible syslog flood.

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-2024-46681"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-09-13T06:15:12Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\npktgen: use cpus_read_lock() in pg_net_init()\n\nI have seen the WARN_ON(smp_processor_id() != cpu) firing\nin pktgen_thread_worker() during tests.\n\nWe must use cpus_read_lock()/cpus_read_unlock()\naround the for_each_online_cpu(cpu) loop.\n\nWhile we are at it use WARN_ON_ONCE() to avoid a possible syslog flood.",
  "id": "GHSA-5mq7-93mw-h965",
  "modified": "2026-10-21T15:39:54Z",
  "published": "2024-09-13T06:30:42Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-46681"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/5f5f7366dda8ae870e8305d6e7b3c0c2686cd2cf"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/7eed5b3115ce9e057bf64c3f6be9ea72f8298e4e"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/979b581e4c69257acab1af415ddad6b2d78a2fa5"
    }
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  "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"
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}

CVE-2024-46681 (GCVE-0-2024-46681)

Vulnerability from cvelistv5 – Published: 2024-09-13 05:29 – Updated: 2026-10-21 12:35

Title

pktgen: use cpus_read_lock() in pg_net_init()

Summary

In the Linux kernel, the following vulnerability has been resolved: pktgen: use cpus_read_lock() in pg_net_init() I have seen the WARN_ON(smp_processor_id() != cpu) firing in pktgen_thread_worker() during tests. We must use cpus_read_lock()/cpus_read_unlock() around the for_each_online_cpu(cpu) loop. While we are at it use WARN_ON_ONCE() to avoid a possible syslog flood.

Severity

No CVSS data available.

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2024-09-29 15:09 UTC

Assigner

Linux CNA under the mitre root

CNA scorecard D 53/100 over 7056 records in the last 180 days details

References

3 references

URL	Tags
https://git.kernel.org/stable/c/7eed5b3115ce9e057…
https://git.kernel.org/stable/c/5f5f7366dda8ae870…
https://git.kernel.org/stable/c/979b581e4c69257ac…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 7eed5b3115ce9e057bf64c3f6be9ea72f8298e4e (git) Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 5f5f7366dda8ae870e8305d6e7b3c0c2686cd2cf (git) Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 979b581e4c69257acab1af415ddad6b2d78a2fa5 (git)
Linux	Linux	Affected: 2.6.12 Unaffected: 0 , < 2.6.12 (semver) Unaffected: 6.6.160 , ≤ 6.6.* (semver) Unaffected: 6.10.8 , ≤ 6.10.* (semver) Unaffected: 6.11 , ≤ * (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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