github - ghsa-xp55-qmgg-q2rh

GHSA-XP55-QMGG-Q2RH

Vulnerability from github – Published: 2025-08-22 18:31 – Updated: 2025-11-26 18:31

Details

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

clk: spacemit: mark K1 pll1_d8 as critical

The pll1_d8 clock is enabled by the boot loader, and is ultimately a parent for numerous clocks, including those used by APB and AXI buses. Guodong Xu discovered that this clock got disabled while responding to getting -EPROBE_DEFER when requesting a reset controller.

The needed clock (CLK_DMA, along with its parents) had already been enabled. To respond to the probe deferral return, the CLK_DMA clock was disabled, and this led to parent clocks also reducing their enable count. When the enable count for pll1_d8 was decremented it became 0, which caused it to be disabled. This led to a system hang.

Marking that clock critical resolves this by preventing it from being disabled.

Define a new macro CCU_FACTOR_GATE_DEFINE() to allow clock flags to be supplied for a CCU_FACTOR_GATE clock.

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-2025-38633"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-08-22T16:15:37Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nclk: spacemit: mark K1 pll1_d8 as critical\n\nThe pll1_d8 clock is enabled by the boot loader, and is ultimately a\nparent for numerous clocks, including those used by APB and AXI buses.\nGuodong Xu discovered that this clock got disabled while responding to\ngetting -EPROBE_DEFER when requesting a reset controller.\n\nThe needed clock (CLK_DMA, along with its parents) had already been\nenabled.  To respond to the probe deferral return, the CLK_DMA clock\nwas disabled, and this led to parent clocks also reducing their enable\ncount.  When the enable count for pll1_d8 was decremented it became 0,\nwhich caused it to be disabled.  This led to a system hang.\n\nMarking that clock critical resolves this by preventing it from being\ndisabled.\n\nDefine a new macro CCU_FACTOR_GATE_DEFINE() to allow clock flags to\nbe supplied for a CCU_FACTOR_GATE clock.",
  "id": "GHSA-xp55-qmgg-q2rh",
  "modified": "2025-11-26T18:31:00Z",
  "published": "2025-08-22T18:31:22Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-38633"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/10948c00e548e9ad2ce9d765baf26dce2d9b806b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/7554729de27daf6d54bcf8689d863bbe267828bf"
    }
  ],
  "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-2025-38633 (GCVE-0-2025-38633)

Vulnerability from cvelistv5 – Published: 2025-08-22 16:00 – Updated: 2025-09-29 05:55

Summary

In the Linux kernel, the following vulnerability has been resolved: clk: spacemit: mark K1 pll1_d8 as critical The pll1_d8 clock is enabled by the boot loader, and is ultimately a parent for numerous clocks, including those used by APB and AXI buses. Guodong Xu discovered that this clock got disabled while responding to getting -EPROBE_DEFER when requesting a reset controller. The needed clock (CLK_DMA, along with its parents) had already been enabled. To respond to the probe deferral return, the CLK_DMA clock was disabled, and this led to parent clocks also reducing their enable count. When the enable count for pll1_d8 was decremented it became 0, which caused it to be disabled. This led to a system hang. Marking that clock critical resolves this by preventing it from being disabled. Define a new macro CCU_FACTOR_GATE_DEFINE() to allow clock flags to be supplied for a CCU_FACTOR_GATE clock.

Severity ?

No CVSS data available.

Assigner

Linux

References

URL

Tags

	https://git.kernel.org/stable/c/10948c00e548e9ad2…
	https://git.kernel.org/stable/c/7554729de27daf6d5…

Impacted products

Vendor

Product

Version

Linux

Affected: 1b72c59db0add8e47fa116b21f78ed0b09a264f3 , < 10948c00e548e9ad2ce9d765baf26dce2d9b806b (git)
Affected: 1b72c59db0add8e47fa116b21f78ed0b09a264f3 , < 7554729de27daf6d54bcf8689d863bbe267828bf (git)

Linux

Affected: 6.16
Unaffected: 0 , < 6.16 (semver)
Unaffected: 6.16.1 , ≤ 6.16.* (semver)
Unaffected: 6.17 , ≤ * (original_commit_for_fix)

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JSON

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/clk/spacemit/ccu-k1.c",
            "drivers/clk/spacemit/ccu_mix.h"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "10948c00e548e9ad2ce9d765baf26dce2d9b806b",
              "status": "affected",
              "version": "1b72c59db0add8e47fa116b21f78ed0b09a264f3",
              "versionType": "git"
            },
            {
              "lessThan": "7554729de27daf6d54bcf8689d863bbe267828bf",
              "status": "affected",
              "version": "1b72c59db0add8e47fa116b21f78ed0b09a264f3",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/clk/spacemit/ccu-k1.c",
            "drivers/clk/spacemit/ccu_mix.h"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.16"
            },
            {
              "lessThan": "6.16",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.16.*",
              "status": "unaffected",
              "version": "6.16.1",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.17",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.16.1",
                  "versionStartIncluding": "6.16",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.17",
                  "versionStartIncluding": "6.16",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nclk: spacemit: mark K1 pll1_d8 as critical\n\nThe pll1_d8 clock is enabled by the boot loader, and is ultimately a\nparent for numerous clocks, including those used by APB and AXI buses.\nGuodong Xu discovered that this clock got disabled while responding to\ngetting -EPROBE_DEFER when requesting a reset controller.\n\nThe needed clock (CLK_DMA, along with its parents) had already been\nenabled.  To respond to the probe deferral return, the CLK_DMA clock\nwas disabled, and this led to parent clocks also reducing their enable\ncount.  When the enable count for pll1_d8 was decremented it became 0,\nwhich caused it to be disabled.  This led to a system hang.\n\nMarking that clock critical resolves this by preventing it from being\ndisabled.\n\nDefine a new macro CCU_FACTOR_GATE_DEFINE() to allow clock flags to\nbe supplied for a CCU_FACTOR_GATE clock."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-09-29T05:55:11.972Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/10948c00e548e9ad2ce9d765baf26dce2d9b806b"
        },
        {
          "url": "https://git.kernel.org/stable/c/7554729de27daf6d54bcf8689d863bbe267828bf"
        }
      ],
      "title": "clk: spacemit: mark K1 pll1_d8 as critical",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2025-38633",
    "datePublished": "2025-08-22T16:00:41.434Z",
    "dateReserved": "2025-04-16T04:51:24.030Z",
    "dateUpdated": "2025-09-29T05:55:11.972Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

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-XP55-QMGG-Q2RH

CVE-2025-38633 (GCVE-0-2025-38633)

Tags

Sightings

Nomenclature