CVE-2026-53117

Description

In the Linux kernel, the following vulnerability has been resolved: s390/cio: use generic driver_override infrastructure When a driver is probed through __driver_attach(), the bus' match() callback is called without the device lock held, thus accessing the driver_override field without a lock, which can cause a UAF. Fix this by using the driver-core driver_override infrastructure taking care of proper locking internally. Note that calling match() from __driver_attach() without the device lock held is intentional. [1]

References

• https://git.kernel.org/stable/c/106d594711e97762788046c5bbb94f580abc4bf4
• https://git.kernel.org/stable/c/2081957d8c323ffb58a10bc64837717ac5a042a1
• https://git.kernel.org/stable/c/ac4d8bb6e2e13e8684a76ea48d13ebaaaf5c24c4
• https://git.kernel.org/stable/c/b660ba045b2b22cf3b4be72773de00cb48f47be5
• https://git.kernel.org/stable/c/c4295487124f461405e1ef64dfa8c4ab0cb7ebcf