CVE-2020-29374: An issue was discovered in the Linux kernel before 5.7.3, related to mm/gup.c and mm/huge_memory.c. The get_user_pages (

A bug was found in the Linux kernel before version 5.7.3 in the get_user_pages function (a mechanism that allows programs to access memory pages), where it incorrectly grants write access when it should only allow read access for copy-on-write pages (memory regions shared between processes that are copied when modified). This happens because the function doesn't properly respect read-only restrictions, creating a security vulnerability.