An issue was discovered in the Linux kernel before 5.8.6. drivers/media/cec/core/cec-api.c leaks one byte of kernel memory on specific hardware to unprivileged users, because of directly assigning log_addrs with a hole in the struct.
https://github.com/torvalds/linux/commit/6c42227c3467549ddc65efe99c869021d2f4a570
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.8.6