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

Vulnerability from cvelistv5 – Published: 2026-04-03 15:15 – Updated: 2026-07-14 12:47
VLAI
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
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Assigner
References
Impacted products
Vendor Product Version
Linux 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)
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Linux 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 , ≤ * (original_commit_for_fix)
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Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP Affected: V3.1.6 , < * (custom)
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Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP Affected: V3.1.5 , < * (custom)
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Siemens SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP Affected: V3.1.6 , < * (custom)
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Siemens SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP Affected: V3.1.5 , < * (custom)
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Siemens SIPLUS S7-1500 CPU 1518-4 PN/DP MFP Affected: V3.1.6 , < * (custom)
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Siemens SIPLUS S7-1500 CPU 1518-4 PN/DP MFP Affected: V3.1.5 , < * (custom)
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    "redhat_vex": {
      "aggregate_severity": "Low",
      "current_release_date": "2026-06-28T07:21:10+00:00",
      "cve": "CVE-2026-23475",
      "id": "CVE-2026-23475",
      "initial_release_date": "2026-04-03T00:00:00+00:00",
      "product_status:known_affected": "184",
      "product_status:known_not_affected": "90",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: spi: fix statistics allocation",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-23475.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-07-15T05:27:51Z",
      "cve": "CVE-2026-23475",
      "id": "CVE-2026-23475",
      "initial_release_date": "2026-04-03T23:26:56Z",
      "product_status:first_fixed": "2",
      "product_status:known_affected": "47",
      "product_status:known_not_affected": "193",
      "product_status:recommended": "268",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2026-23475",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2026-23475.json",
      "version": "10"
    }
  }
}



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Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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.


Detection rules are retrieved from Rulezet.