CVE-2026-23475
Medium
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).
SeverityMedium
CVSS5.5
Exploit probability—
Product
Linux Kernel
PublishedApr 3, 2026
First seenApr 3, 2026
Weakness typeCWE-476NULL pointer dereference
How to fix
Update
- linux linux_kernel6.1.167, 6.6.130, 6.12.78, 6.18.20, 6.19.10 or later
Patches
- git.kernel.org/stable/c/118ce777d39f03cac99231196f820e4f998613a8
- git.kernel.org/stable/c/378b295f67102eef78cf2c28105f60ae1dab5cc1
- git.kernel.org/stable/c/80c5bd0dca1cc5526ae0f4b273ccd163ed4caa4e
- git.kernel.org/stable/c/dee0774bbb2abb172e9069ce5ffef579b12b3ae9
- git.kernel.org/stable/c/df30056c78e8bead02d4be020199cabdbec0fef1
- git.kernel.org/stable/c/f13100b1f5f111989f0750540a795fdef47492af
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| linux linux_kernel | 6.0 ≤ v < 6.1.167, 6.2 ≤ v < 6.6.130, 6.7 ≤ v < 6.12.78, 6.13 ≤ v < 6.18.20, 6.19 ≤ v < 6.19.10, 7.0 | 6.1.167, 6.6.130, 6.12.78, 6.18.20, 6.19.10 |
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