On Tue, May 05, 2020 at 02:41:01PM -0500, Eric W. Biederman wrote: > > In 2016 Linus moved install_exec_creds immediately after > setup_new_exec, in binfmt_elf as a cleanup and as part of closing a > potential information leak. > > Perform the same cleanup for the other binary formats. > > Different binary formats doing the same things the same way makes exec > easier to reason about and easier to maintain. > > The binfmt_flagt bits were tested by Greg Ungerer <gerg@xxxxxxxxxxxxxx> > > Ref: 9f834ec18def ("binfmt_elf: switch to new creds when switching to new mm") > Signed-off-by: "Eric W. Biederman" <ebiederm@xxxxxxxxxxxx> Reviewed-by: Kees Cook <keescook@xxxxxxxxxxxx> -- Kees Cook