CVE-2026-23475

MEDIUMNVD 5.55.5—

5.5

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).

CVSS v3: 5.5
EG Score: 5.5(medium)
EPSS: 3.5%
KEV: Not listed

Published

April 3, 2026

Last Modified

May 20, 2026

References (6)

416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/118ce777d39f03cac99231196f820e4f998613a8
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/378b295f67102eef78cf2c28105f60ae1dab5cc1
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/80c5bd0dca1cc5526ae0f4b273ccd163ed4caa4e
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/dee0774bbb2abb172e9069ce5ffef579b12b3ae9
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/df30056c78e8bead02d4be020199cabdbec0fef1
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/f13100b1f5f111989f0750540a795fdef47492af

Vendor Advisories for CVE-2026-23475(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

GHSA-p23v-v2wc-73m3
GitHub Security AdvisoriesMedium
In the Linux kernel, the following vulnerability has been resolved: spi: fix statistics...

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

CWE-476NULL Pointer Dereference

Data Freshness Timeline

(refreshed 18× in last 7d / 20× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

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Frequently asked(5)

What is CVE-2026-23475?

CVE-2026-23475 is a medium vulnerability published on April 3, 2026. 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…

When was CVE-2026-23475 disclosed?

CVE-2026-23475 was first published in the National Vulnerability Database on April 3, 2026, with the most recent update on May 20, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2026-23475 actively exploited?

CVE-2026-23475 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 3.5% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2026-23475?

CVE-2026-23475 has a CVSS v3 base score of 5.5 (NVD).

How do I remediate CVE-2026-23475?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-23475, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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CVE-2026-23475

📅 Published

🔄 Last Modified

🔗 References (6)

📣 Vendor Advisories for CVE-2026-23475(1)

Weakness Classification(1)

Data Freshness Timeline

❓ Frequently asked(5)