Medium severity5.5NVD Advisory· Published Apr 3, 2026· Updated Jul 24, 2026
CVE-2026-23475
CVE-2026-23475
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).
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
7(expand)+ 5 more
- (no CPE)
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*range: >=6.0,<6.1.167
- cpe:2.3:o:linux:linux_kernel:7.0:rc1:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:7.0:rc2:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:7.0:rc3:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:7.0:rc4:*:*:*:*:*:*
Patches
Vulnerability mechanics
References
8- git.kernel.org/stable/c/118ce777d39f03cac99231196f820e4f998613a8nvdPatch
- git.kernel.org/stable/c/378b295f67102eef78cf2c28105f60ae1dab5cc1nvdPatch
- git.kernel.org/stable/c/80c5bd0dca1cc5526ae0f4b273ccd163ed4caa4envdPatch
- git.kernel.org/stable/c/dee0774bbb2abb172e9069ce5ffef579b12b3ae9nvdPatch
- git.kernel.org/stable/c/df30056c78e8bead02d4be020199cabdbec0fef1nvdPatch
- git.kernel.org/stable/c/f13100b1f5f111989f0750540a795fdef47492afnvdPatch
- cert-portal.siemens.com/productcert/html/ssa-019113.htmlnvd
- cert-portal.siemens.com/productcert/html/ssa-082556.htmlnvd
News mentions
1- Siemens SIMATIC S7-1500 CPU 1518(F)-4 PN/DP MFPCISA ICS Advisories