github - ghsa-9pqv-7h63-32cr

GHSA-9PQV-7H63-32CR

Vulnerability from github – Published: 2025-09-05 18:31 – Updated: 2025-11-03 18:31

Details

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

net: usb: asix_devices: Fix PHY address mask in MDIO bus initialization

Syzbot reported shift-out-of-bounds exception on MDIO bus initialization.

The PHY address should be masked to 5 bits (0-31). Without this mask, invalid PHY addresses could be used, potentially causing issues with MDIO bus operations.

Fix this by masking the PHY address with 0x1f (31 decimal) to ensure it stays within the valid range.

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{
  "affected": [],
  "aliases": [
    "CVE-2025-38736"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-09-05T18:15:42Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: usb: asix_devices: Fix PHY address mask in MDIO bus initialization\n\nSyzbot reported shift-out-of-bounds exception on MDIO bus initialization.\n\nThe PHY address should be masked to 5 bits (0-31). Without this\nmask, invalid PHY addresses could be used, potentially causing issues\nwith MDIO bus operations.\n\nFix this by masking the PHY address with 0x1f (31 decimal) to ensure\nit stays within the valid range.",
  "id": "GHSA-9pqv-7h63-32cr",
  "modified": "2025-11-03T18:31:39Z",
  "published": "2025-09-05T18:31:26Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-38736"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/22042ffedd8c2c6db08ccdd6d4273068eddd3c5c"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/24ef2f53c07f273bad99173e27ee88d44d135b1c"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/523eab02fce458fa6d3c51de5bb055800986953e"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/748da80831221ae24b4bc8d7ffb22acd5712a341"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/8f141f2a4f2ef8ca865d5921574c3d6535e00a49"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/fcb4ce9f729c1d08e53abf9d449340e24c3edee6"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2025-38736 (GCVE-0-2025-38736)

Vulnerability from cvelistv5 – Published: 2025-09-05 17:20 – Updated: 2025-11-03 17:42

Summary

In the Linux kernel, the following vulnerability has been resolved: net: usb: asix_devices: Fix PHY address mask in MDIO bus initialization Syzbot reported shift-out-of-bounds exception on MDIO bus initialization. The PHY address should be masked to 5 bits (0-31). Without this mask, invalid PHY addresses could be used, potentially causing issues with MDIO bus operations. Fix this by masking the PHY address with 0x1f (31 decimal) to ensure it stays within the valid range.

Severity ?

No CVSS data available.

Assigner

Linux

References

URL

Tags

	https://git.kernel.org/stable/c/fcb4ce9f729c1d08e…
	https://git.kernel.org/stable/c/8f141f2a4f2ef8ca8…
	https://git.kernel.org/stable/c/748da80831221ae24…
	https://git.kernel.org/stable/c/22042ffedd8c2c6db…
	https://git.kernel.org/stable/c/523eab02fce458fa6…
	https://git.kernel.org/stable/c/24ef2f53c07f273ba…

Impacted products

Vendor

Product

Version

Linux

Affected: 75947d3200de98a9ded9ad8972e02f1a177097fe , < fcb4ce9f729c1d08e53abf9d449340e24c3edee6 (git)
Affected: 59ed6fbdb1bc03316e09493ffde7066f031c7524 , < 8f141f2a4f2ef8ca865d5921574c3d6535e00a49 (git)
Affected: ccef5ee4adf56472aa26bdd1f821a6d0cd06089a , < 748da80831221ae24b4bc8d7ffb22acd5712a341 (git)
Affected: ee2cd40b0bb46056949a2319084a729d95389386 , < 22042ffedd8c2c6db08ccdd6d4273068eddd3c5c (git)
Affected: ad1f8313aeec0115f9978bd2d002ef4a8d96c773 , < 523eab02fce458fa6d3c51de5bb055800986953e (git)
Affected: 4faff70959d51078f9ee8372f8cff0d7045e4114 , < 24ef2f53c07f273bad99173e27ee88d44d135b1c (git)
Affected: a754ab53993b1585132e871c5d811167ad3c52ff (git)

Linux

Affected: 6.12.43 , < 6.12.44 (semver)
Affected: 6.16.2 , < 6.16.4 (semver)

Show details on NVD website

JSON

To clipboard

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        "providerMetadata": {
          "dateUpdated": "2025-11-03T17:42:06.126Z",
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        "references": [
          {
            "url": "https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html"
          }
        ],
        "title": "CVE Program Container"
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      "cpeApplicability": [
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}

Sightings

Author	Source	Type	Date

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.

Action not permitted

GHSA-9PQV-7H63-32CR

CVE-2025-38736 (GCVE-0-2025-38736)

Tags

Sightings

Nomenclature