Linux kernel 安全漏洞

Linux kernel is the kernel used by Linux, the open source operating system of the Linux Foundation in the United States. A security vulnerability exists in the Linux kernel that stems from a comedi pcl812 bit offset out-of-bounds, which could lead to a userspace vulnerability...

ASB-A-233154555

'remappfnrange' here may map out of size kernel memory for example, may map the kernel area, and because the 'vma-vmpageprot' can also be controlled by userspace, so userspace may map the kernel area to be writable, which is easy to be exploited...