VulnerabilityPublished 3 Apr 2026Updated 5 Nov 2026

CVE-2026-23475: Linux kernel · spi: fix statistics allocation

Affects Linux kernelSource CVE Database V5

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Not known to be exploited · fixed in f13100b1f5f111989f0750540a795fdef47492af : update Linux kernel when convenient.

Data as of 5 Nov 2026, 22:04 UTC

Severity

Unrated

Rated by Threat Radar · No CVSS score from NVD or the CNA

Thin evidence

One scorer or none

Exploitation: No evidence of active exploitation and no public proof of concept
Automatable: Attackers cannot reliably automate steps 1–4 of the kill chain
Technical impact: Limited control over the software or limited information exposure

CISA SSVC assessment, 2026-11-05.

Patch

Available – fixed in f13100b1f5f111989f0750540a795fdef47492af, df30056c78e8bead02d4be020199cabdbec0fef1, dee0774bbb2abb172e9069ce5ffef579b12b3ae9 +3

Exploitation evidence

Disclosed: evidence found.
CVE published 3 Apr 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 5 Nov 2026.

Disclosed: The CVE record is public on cve.org. Its publication is t = 0.
Detectable: A public nuclei template can find exposed instances, for defenders and attackers alike.
Weaponized: A Metasploit exploit module or Exploit-DB entry exists (Metasploit scanner modules do not count), or CISA SSVC or the CVSS exploit maturity reports a public proof of concept.
Exploited in the wild: CISA KEV lists it, CISA SSVC rates exploitation active, or a source reports attacks.
Observed by OffSeq Mirage: OffSeq Mirage honeypot sensors recorded attack traffic for this CVE, or found exposed hosts without attack traffic.

Moments are spaced evenly, not to scale; a dashed line marks a gap of six months or more. Deltas count from t = 0. Sources that give only a date (CISA KEV, Exploit-DB, or a time of exactly 00:00Z) read “same day” rather than hours. Metasploit modules carry the flaw’s disclosure date, not their release date, and nuclei templates carry no date, so both appear above but not on the timeline.

What to do

Upgrade to a fixed release listed under Affected software.

Affected software

Product	Affected	Fixed in
LinuxLinux	Affected ≥ 6598b91b5ac32bc756d7c3000a31f775d4ead1c4, < f13100b1f5f111989f0750540a795fdef47492af	Fixed in f13100b1f5f111989f0750540a795fdef47492af
LinuxLinux	Affected ≥ 6598b91b5ac32bc756d7c3000a31f775d4ead1c4, < df30056c78e8bead02d4be020199cabdbec0fef1	Fixed in df30056c78e8bead02d4be020199cabdbec0fef1
LinuxLinux	Affected ≥ 6598b91b5ac32bc756d7c3000a31f775d4ead1c4, < dee0774bbb2abb172e9069ce5ffef579b12b3ae9	Fixed in dee0774bbb2abb172e9069ce5ffef579b12b3ae9
LinuxLinux	Affected ≥ 6598b91b5ac32bc756d7c3000a31f775d4ead1c4, < 378b295f67102eef78cf2c28105f60ae1dab5cc1	Fixed in 378b295f67102eef78cf2c28105f60ae1dab5cc1
LinuxLinux	Affected ≥ 6598b91b5ac32bc756d7c3000a31f775d4ead1c4, < 118ce777d39f03cac99231196f820e4f998613a8	Fixed in 118ce777d39f03cac99231196f820e4f998613a8
LinuxLinux	Affected ≥ 6598b91b5ac32bc756d7c3000a31f775d4ead1c4, < 80c5bd0dca1cc5526ae0f4b273ccd163ed4caa4e	Fixed in 80c5bd0dca1cc5526ae0f4b273ccd163ed4caa4e

Description

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).

References

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