- in preparation for secid mapping add support for absolute root view
based labels
- add base infastructure for socket mediation
- add mount mediation
- add signal mediation
+ minor cleanups and changes
- be defensive, ensure unconfined profiles have dfas initialized
- add more debug asserts to apparmorfs
- enable policy unpacking to audit different reasons for failure
- cleanup conditional check for label in label_print
- Redundant condition: prev_ns. in [label.c:1498]
+ Bug Fixes
- fix regression in apparmorfs DAC access permissions
- fix build failure on sparc caused by undeclared signals
- fix sparse report of incorrect type assignment when freeing label proxies
- fix race condition in null profile creation
- Fix an error code in aafs_create()
- Fix logical error in verify_header()
- Fix shadowed local variable in unpack_trans_table()
-----BEGIN PGP SIGNATURE-----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=iDCd
-----END PGP SIGNATURE-----
Merge tag 'apparmor-pr-2017-09-22' of git://git.kernel.org/pub/scm/linux/kernel/git/jj/linux-apparmor
Pull apparmor updates from John Johansen:
"This is the apparmor pull request, similar to SELinux and seccomp.
It's the same series that I was sent to James' security tree + one
regression fix that was found after the series was sent to James and
would have been sent for v4.14-rc2.
Features:
- in preparation for secid mapping add support for absolute root view
based labels
- add base infastructure for socket mediation
- add mount mediation
- add signal mediation
minor cleanups and changes:
- be defensive, ensure unconfined profiles have dfas initialized
- add more debug asserts to apparmorfs
- enable policy unpacking to audit different reasons for failure
- cleanup conditional check for label in label_print
- Redundant condition: prev_ns. in [label.c:1498]
Bug Fixes:
- fix regression in apparmorfs DAC access permissions
- fix build failure on sparc caused by undeclared signals
- fix sparse report of incorrect type assignment when freeing label proxies
- fix race condition in null profile creation
- Fix an error code in aafs_create()
- Fix logical error in verify_header()
- Fix shadowed local variable in unpack_trans_table()"
* tag 'apparmor-pr-2017-09-22' of git://git.kernel.org/pub/scm/linux/kernel/git/jj/linux-apparmor:
apparmor: fix apparmorfs DAC access permissions
apparmor: fix build failure on sparc caused by undeclared signals
apparmor: fix incorrect type assignment when freeing proxies
apparmor: ensure unconfined profiles have dfas initialized
apparmor: fix race condition in null profile creation
apparmor: move new_null_profile to after profile lookup fns()
apparmor: add base infastructure for socket mediation
apparmor: add more debug asserts to apparmorfs
apparmor: make policy_unpack able to audit different info messages
apparmor: add support for absolute root view based labels
apparmor: cleanup conditional check for label in label_print
apparmor: add mount mediation
apparmor: add the ability to mediate signals
apparmor: Redundant condition: prev_ns. in [label.c:1498]
apparmor: Fix an error code in aafs_create()
apparmor: Fix logical error in verify_header()
apparmor: Fix shadowed local variable in unpack_trans_table()
The AppArmor bprm_secureexec hook can be merged with the bprm_set_creds
hook since it's dealing with the same information, and all of the details
are finalized during the first call to the bprm_set_creds hook via
prepare_binprm() (subsequent calls due to binfmt_script, etc, are ignored
via bprm->called_set_creds).
Here, all the comments describe how secureexec is actually calculated
during bprm_set_creds, so this actually does it, drops the bprm flag that
was being used internally by AppArmor, and drops the bprm_secureexec hook.
Signed-off-by: Kees Cook <keescook@chromium.org>
Acked-by: John Johansen <john.johansen@canonical.com>
Reviewed-by: James Morris <james.l.morris@oracle.com>
Acked-by: Serge Hallyn <serge@hallyn.com>
There is no reason to have the small stubs that don't use domain
private functions in domain.c, instead move them to lsm.c and make
them static.
Signed-off-by: John Johansen <john.johansen@canonical.com>
Moving the use of fqname to later allows learning profiles to be based
on the fqname request instead of just the hname. It also allows cleaning
up some of the name parsing and lookup by allowing the use of
the fqlookupn_profile() lib fn.
Signed-off-by: John Johansen <john.johansen@canonical.com>
AppArmor routines for controling domain transitions, which can occur at
exec or through self directed change_profile/change_hat calls.
Unconfined tasks are checked at exec against the profiles in the confining
profile namespace to determine if a profile should be attached to the task.
Confined tasks execs are controlled by the profile which provides rules
determining which execs are allowed and if so which profiles should be
transitioned to.
Self directed domain transitions allow a task to request transition
to a given profile. If the transition is allowed then the profile will
be applied, either immeditately or at exec time depending on the request.
Immeditate self directed transitions have several security limitations
but have uses in setting up stub transition profiles and other limited
cases.
Signed-off-by: John Johansen <john.johansen@canonical.com>
Signed-off-by: James Morris <jmorris@namei.org>
Linus Torvalds