Vulnerability-Lookup

GHSA-P23V-V2WC-73M3

Vulnerability from github – Published: 2026-04-03 18:31 – Updated: 2026-04-03 18:31

Details

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

spi: fix statistics allocation

The controller per-cpu statistics is not allocated until after the controller has been registered with driver core, which leaves a window where accessing the sysfs attributes can trigger a NULL-pointer dereference.

Fix this by moving the statistics allocation to controller allocation while tying its lifetime to that of the controller (rather than using implicit devres).

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{
  "affected": [],
  "aliases": [
    "CVE-2026-23475"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-04-03T16:16:35Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nspi: fix statistics allocation\n\nThe controller per-cpu statistics is not allocated until after the\ncontroller has been registered with driver core, which leaves a window\nwhere accessing the sysfs attributes can trigger a NULL-pointer\ndereference.\n\nFix this by moving the statistics allocation to controller allocation\nwhile tying its lifetime to that of the controller (rather than using\nimplicit devres).",
  "id": "GHSA-p23v-v2wc-73m3",
  "modified": "2026-04-03T18:31:22Z",
  "published": "2026-04-03T18:31:22Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-23475"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/118ce777d39f03cac99231196f820e4f998613a8"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/378b295f67102eef78cf2c28105f60ae1dab5cc1"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/80c5bd0dca1cc5526ae0f4b273ccd163ed4caa4e"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/dee0774bbb2abb172e9069ce5ffef579b12b3ae9"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/df30056c78e8bead02d4be020199cabdbec0fef1"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f13100b1f5f111989f0750540a795fdef47492af"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2026-23475 (GCVE-0-2026-23475)

Vulnerability from cvelistv5 – Published: 2026-04-03 15:15 – Updated: 2026-04-03 15:15

Title

spi: fix statistics allocation

Summary

In the Linux kernel, the following vulnerability has been resolved: spi: fix statistics allocation The controller per-cpu statistics is not allocated until after the controller has been registered with driver core, which leaves a window where accessing the sysfs attributes can trigger a NULL-pointer dereference. Fix this by moving the statistics allocation to controller allocation while tying its lifetime to that of the controller (rather than using implicit devres).

Severity ?

No CVSS data available.

Assigner

Linux

References

URL

Tags

	https://git.kernel.org/stable/c/80c5bd0dca1cc5526…
	https://git.kernel.org/stable/c/f13100b1f5f111989…
	https://git.kernel.org/stable/c/df30056c78e8bead0…
	https://git.kernel.org/stable/c/378b295f67102eef7…
	https://git.kernel.org/stable/c/118ce777d39f03cac…
	https://git.kernel.org/stable/c/dee0774bbb2abb172…

Impacted products

Vendor

Product

Version

Linux

Affected: 6598b91b5ac32bc756d7c3000a31f775d4ead1c4 , < 80c5bd0dca1cc5526ae0f4b273ccd163ed4caa4e (git)
Affected: 6598b91b5ac32bc756d7c3000a31f775d4ead1c4 , < f13100b1f5f111989f0750540a795fdef47492af (git)
Affected: 6598b91b5ac32bc756d7c3000a31f775d4ead1c4 , < df30056c78e8bead02d4be020199cabdbec0fef1 (git)
Affected: 6598b91b5ac32bc756d7c3000a31f775d4ead1c4 , < 378b295f67102eef78cf2c28105f60ae1dab5cc1 (git)
Affected: 6598b91b5ac32bc756d7c3000a31f775d4ead1c4 , < 118ce777d39f03cac99231196f820e4f998613a8 (git)
Affected: 6598b91b5ac32bc756d7c3000a31f775d4ead1c4 , < dee0774bbb2abb172e9069ce5ffef579b12b3ae9 (git)

Linux

Affected: 6.0
Unaffected: 0 , < 6.0 (semver)
Unaffected: 6.1.167 , ≤ 6.1.* (semver)
Unaffected: 6.6.130 , ≤ 6.6.* (semver)
Unaffected: 6.12.78 , ≤ 6.12.* (semver)
Unaffected: 6.18.20 , ≤ 6.18.* (semver)
Unaffected: 6.19.10 , ≤ 6.19.* (semver)
Unaffected: 7.0-rc5 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/spi/spi.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "80c5bd0dca1cc5526ae0f4b273ccd163ed4caa4e",
              "status": "affected",
              "version": "6598b91b5ac32bc756d7c3000a31f775d4ead1c4",
              "versionType": "git"
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              "version": "6598b91b5ac32bc756d7c3000a31f775d4ead1c4",
              "versionType": "git"
            },
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              "versionType": "git"
            },
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              "versionType": "git"
            },
            {
              "lessThan": "118ce777d39f03cac99231196f820e4f998613a8",
              "status": "affected",
              "version": "6598b91b5ac32bc756d7c3000a31f775d4ead1c4",
              "versionType": "git"
            },
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              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/spi/spi.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.0"
            },
            {
              "lessThan": "6.0",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.167",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.130",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.78",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.20",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.19.*",
              "status": "unaffected",
              "version": "6.19.10",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.0-rc5",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.167",
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                },
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                },
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                }
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              "operator": "OR"
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        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nspi: fix statistics allocation\n\nThe controller per-cpu statistics is not allocated until after the\ncontroller has been registered with driver core, which leaves a window\nwhere accessing the sysfs attributes can trigger a NULL-pointer\ndereference.\n\nFix this by moving the statistics allocation to controller allocation\nwhile tying its lifetime to that of the controller (rather than using\nimplicit devres)."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-04-03T15:15:54.211Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
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        },
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          "url": "https://git.kernel.org/stable/c/f13100b1f5f111989f0750540a795fdef47492af"
        },
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        },
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        {
          "url": "https://git.kernel.org/stable/c/dee0774bbb2abb172e9069ce5ffef579b12b3ae9"
        }
      ],
      "title": "spi: fix statistics allocation",
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        "engine": "bippy-1.2.0"
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  "cveMetadata": {
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    "cveId": "CVE-2026-23475",
    "datePublished": "2026-04-03T15:15:54.211Z",
    "dateReserved": "2026-01-13T15:37:46.022Z",
    "dateUpdated": "2026-04-03T15:15:54.211Z",
    "state": "PUBLISHED"
  },
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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-P23V-V2WC-73M3

CVE-2026-23475 (GCVE-0-2026-23475)

Tags

Sightings

Nomenclature