On Sun, Jan 26, 2014 at 08:38:25PM +0000, Richard W.M. Jones wrote: > JONESFORTH, a public domain FORTH I wrote, is written in x86 assembler > and prefers to put its threaded interpreter at address 0. Can you change its preference? Permitting the mapping of executable code at address 0 makes it much easier to exploit null pointer vulnerabilities in the kernel. Recent (within the past few years…) kernels will refuse to let you mmap stuff below 64K or so regardless of selinux policy, so this may break on other distributions as well. -- Matthew Garrett | mjg59@xxxxxxxxxxxxx -- devel mailing list devel@xxxxxxxxxxxxxxxxxxxxxxx https://admin.fedoraproject.org/mailman/listinfo/devel Fedora Code of Conduct: http://fedoraproject.org/code-of-conduct
