CVE-2026-31389

Description

In the Linux kernel, the following vulnerability has been resolved: spi: fix use-after-free on controller registration failure Make sure to deregister from driver core also in the unlikely event that per-cpu statistics allocation fails during controller registration to avoid use-after-free (of driver resources) and unclocked register accesses.

References

• https://git.kernel.org/stable/c/0e23f50086da7d0b183dfeac26021acfcdee086b
• https://git.kernel.org/stable/c/23b51bad2eb8787aa74324cfccefb258515ae5ba
• https://git.kernel.org/stable/c/6bbd385b30c7fb6c7ee0669e9ada91490938c051
• https://git.kernel.org/stable/c/80f3e8cd2b4ad355b2ad2024cf423f6d183404f7
• https://git.kernel.org/stable/c/8634e05b08ead636e926022f4a98416e13440df9