[Fixup Christoph email - the thread starts here http://lkml.kernel.org/r/1394749328.5225281.1515598510696.JavaMail.zimbra@xxxxxxxxxx] On Mon 29-01-18 14:31:51, Michal Hocko wrote: > [Sorry for a very late reply] > > On Wed 10-01-18 10:21:31, Eric W. Biederman wrote: > [...] > > All of that said. I am wondering if we should have used > > PTRACE_MODE_READ_FSCREDS on these permission checks. > > If this is really about preventing the layout discovery then we should > be in sync with proc_mem_open and that uses PTRACE_MODE_FSCREDS|PTRACE_MODE_READ > Should we do the same thing here? > -- > Michal Hocko > SUSE Labs -- Michal Hocko SUSE Labs -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx"> email@xxxxxxxxx </a>