Medium · published April 3, 2026
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).
| Product | Versions | Fixed in |
|---|---|---|
| linux/linux_kernel | ≥ 6.0, < 6.1.167 | 6.1.167 |
| linux/linux_kernel | ≥ 6.2, < 6.6.130 | 6.6.130 |
| linux/linux_kernel | ≥ 6.7, < 6.12.78 | 6.12.78 |
| linux/linux_kernel | ≥ 6.13, < 6.18.20 | 6.18.20 |
| linux/linux_kernel | ≥ 6.19, < 6.19.10 | 6.19.10 |
| linux/linux_kernel | all versions | — |
| linux/linux_kernel | all versions | — |
| linux/linux_kernel | all versions | — |
| linux/linux_kernel | all versions | — |