Vulnerability-Lookup

GHSA-8WJG-7MHV-9G56

Vulnerability from github – Published: 2026-08-15 06:32 – Updated: 2026-08-15 06:32

Details

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

kho: make sure scratch size is always aligned by CMA_MIN_ALIGNMENT_BYTES

When using scratch_scale, the scratch sizes are rounded up to CMA_MIN_ALIGNMENT_BYTES since they will be released as MIGRATE_CMA. This is not done when using fixed scratch sizes via command line. This can result in user specifying a size which is not aligned, and thus kernel releasing a pageblock that is only partially scratch.

Do the rounding up for both cases in scratch_size_update().

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{
  "affected": [],
  "aliases": [
    "CVE-2026-72169"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-08-15T06:21:34Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nkho: make sure scratch size is always aligned by CMA_MIN_ALIGNMENT_BYTES\n\nWhen using scratch_scale, the scratch sizes are rounded up to\nCMA_MIN_ALIGNMENT_BYTES since they will be released as MIGRATE_CMA. This\nis not done when using fixed scratch sizes via command line. This can\nresult in user specifying a size which is not aligned, and thus kernel\nreleasing a pageblock that is only partially scratch.\n\nDo the rounding up for both cases in scratch_size_update().",
  "id": "GHSA-8wjg-7mhv-9g56",
  "modified": "2026-08-15T06:32:14Z",
  "published": "2026-08-15T06:32:14Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-72169"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/0e39380a7316122e1b00012b3f3cd3e318b3e7d3"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9fefab759f59bf891bef7be15aee4bc7caec7ec3"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b8271be34bce151597da5b5179e0648c281322a4"
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  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2026-72169 (GCVE-0-2026-72169)

Vulnerability from cvelistv5 – Published: 2026-08-15 05:53 – Updated: 2026-08-17 05:09

Title

kho: make sure scratch size is always aligned by CMA_MIN_ALIGNMENT_BYTES

Summary

In the Linux kernel, the following vulnerability has been resolved: kho: make sure scratch size is always aligned by CMA_MIN_ALIGNMENT_BYTES When using scratch_scale, the scratch sizes are rounded up to CMA_MIN_ALIGNMENT_BYTES since they will be released as MIGRATE_CMA. This is not done when using fixed scratch sizes via command line. This can result in user specifying a size which is not aligned, and thus kernel releasing a pageblock that is only partially scratch. Do the rounding up for both cases in scratch_size_update().

Severity

No CVSS data available.

Assigner

Linux CNA under the mitre root

CNA scorecard D 54/100 over 6618 records in the last 180 days details

References

3 references

URL	Tags
https://git.kernel.org/stable/c/b8271be34bce15159…
https://git.kernel.org/stable/c/9fefab759f59bf891…
https://git.kernel.org/stable/c/0e39380a7316122e1…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 3dc92c311498c4d307cfdd0c6c3ac9355b50f683 , < b8271be34bce151597da5b5179e0648c281322a4 (git) Affected: 3dc92c311498c4d307cfdd0c6c3ac9355b50f683 , < 9fefab759f59bf891bef7be15aee4bc7caec7ec3 (git) Affected: 3dc92c311498c4d307cfdd0c6c3ac9355b50f683 , < 0e39380a7316122e1b00012b3f3cd3e318b3e7d3 (git)
Linux	Linux	Affected: 6.16 Unaffected: 0 , < 6.16 (semver) Unaffected: 6.18.42 , ≤ 6.18.* (semver) Unaffected: 7.1.5 , ≤ 7.1.* (semver) Unaffected: 7.2 , ≤ * (original_commit_for_fix)

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "kernel/liveupdate/kexec_handover.c"
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          "versions": [
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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.

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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GHSA-8WJG-7MHV-9G56

CVE-2026-72169 (GCVE-0-2026-72169)

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