PT-2026-30169 · Linux · Linux

Published 2026-04-03 · Updated 2026-04-03 · CVE-2026-23475

NVD

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).

Related Identifiers

CVE-2026-23475

Affected Products

Linux

References · 7

• https://nvd.nist.gov/vuln/detail/CVE-2026-23475 · Security Note
• https://git.kernel.org/stable/c/118ce777d39f03cac99231196f820e4f998613a8 · Note
• https://git.kernel.org/stable/c/80c5bd0dca1cc5526ae0f4b273ccd163ed4caa4e · Note
• https://git.kernel.org/stable/c/378b295f67102eef78cf2c28105f60ae1dab5cc1 · Note
• https://git.kernel.org/stable/c/dee0774bbb2abb172e9069ce5ffef579b12b3ae9 · Note
• https://git.kernel.org/stable/c/f13100b1f5f111989f0750540a795fdef47492af · Note
• https://git.kernel.org/stable/c/df30056c78e8bead02d4be020199cabdbec0fef1 · Note