John Wood <john.w...@gmx.com> writes: > Add some info detailing what is the Brute LSM, its motivation, weak > points of existing implementations, proposed solutions, enabling, > disabling and self-tests. > > Signed-off-by: John Wood <john.w...@gmx.com> > --- > Documentation/admin-guide/LSM/Brute.rst | 278 ++++++++++++++++++++++++ > Documentation/admin-guide/LSM/index.rst | 1 + > security/brute/Kconfig | 3 +- > 3 files changed, 281 insertions(+), 1 deletion(-) > create mode 100644 Documentation/admin-guide/LSM/Brute.rst
Thanks for including documentation with the patch! As you get closer to merging this, though, you'll want to take a minute (OK, a few minutes) to build the docs and look at the result; there are a number of places where you're not going to get what you expect. Just as an example: [...] > +Based on the above scenario it would be nice to have this detected and > +mitigated, and this is the goal of this implementation. Specifically the > +following attacks are expected to be detected: > + > +1.- Launching (fork()/exec()) a setuid/setgid process repeatedly until a > + desirable memory layout is got (e.g. Stack Clash). > +2.- Connecting to an exec()ing network daemon (e.g. xinetd) repeatedly until > a > + desirable memory layout is got (e.g. what CTFs do for simple network > + service). > +3.- Launching processes without exec() (e.g. Android Zygote) and exposing > state > + to attack a sibling. > +4.- Connecting to a fork()ing network daemon (e.g. apache) repeatedly until > the > + previously shared memory layout of all the other children is exposed > (e.g. > + kind of related to HeartBleed). Sphinx will try to recognize your enumerated list, but that may be a bit more punctuation than it is prepared to deal with; I'd take the hyphens out, if nothing else. [...] > +These statistics are hold by the brute_stats struct. > + > +struct brute_cred { > + kuid_t uid; > + kgid_t gid; > + kuid_t suid; > + kgid_t sgid; > + kuid_t euid; > + kgid_t egid; > + kuid_t fsuid; > + kgid_t fsgid; > +}; That will certainly not render the way you want. What you need here is a literal block: These statistics are hold by the brute_stats struct:: struct brute_cred { kuid_t uid; kgid_t gid; kuid_t suid; kgid_t sgid; kuid_t euid; kgid_t egid; kuid_t fsuid; kgid_t fsgid; }; The "::" causes all of the indented text following to be formatted literally. Thanks, jon