kernel: Missing check in fs/inode.c:inode_init_owner() does not clear SGID bit on non-directories for non-members

A vulnerability was found in the fs/inode.c:inodeinitowner function logic of the LInux kernel that allows local users to create files with an unintended group ownership and with group execution and SGID permission bits set, in a scenario where a directory is SGID and belongs to a certain group an...