Medium severity5.5NVD Advisory· Published Apr 3, 2026· Updated May 20, 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).
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Affected products
1Patches
Vulnerability mechanics
References
6- 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
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