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| author | Serge E. Hallyn <serge@hallyn.com> | 2010-11-25 17:11:32 +0000 |
|---|---|---|
| committer | James Morris <jmorris@namei.org> | 2010-11-29 08:35:12 +1100 |
| commit | ce6ada35bdf710d16582cc4869c26722547e6f11 (patch) | |
| tree | c2b5fd46c883f4b7285b191bac55940022662b43 /security | |
| parent | 1d6d75684d869406e5bb2ac5d3ed9454f52d0cab (diff) | |
| download | linux-ce6ada35bdf710d16582cc4869c26722547e6f11.tar.gz linux-ce6ada35bdf710d16582cc4869c26722547e6f11.tar.bz2 linux-ce6ada35bdf710d16582cc4869c26722547e6f11.zip | |
security: Define CAP_SYSLOG
Privileged syslog operations currently require CAP_SYS_ADMIN. Split
this off into a new CAP_SYSLOG privilege which we can sanely take away
from a container through the capability bounding set.
With this patch, an lxc container can be prevented from messing with
the host's syslog (i.e. dmesg -c).
Changelog: mar 12 2010: add selinux capability2:cap_syslog perm
Changelog: nov 22 2010:
. port to new kernel
. add a WARN_ONCE if userspace isn't using CAP_SYSLOG
Signed-off-by: Serge Hallyn <serge.hallyn@ubuntu.com>
Acked-by: Andrew G. Morgan <morgan@kernel.org>
Acked-By: Kees Cook <kees.cook@canonical.com>
Cc: James Morris <jmorris@namei.org>
Cc: Michael Kerrisk <mtk.manpages@gmail.com>
Cc: Stephen Smalley <sds@tycho.nsa.gov>
Cc: "Christopher J. PeBenito" <cpebenito@tresys.com>
Cc: Eric Paris <eparis@parisplace.org>
Signed-off-by: James Morris <jmorris@namei.org>
Diffstat (limited to 'security')
| -rw-r--r-- | security/selinux/include/classmap.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/security/selinux/include/classmap.h b/security/selinux/include/classmap.h index 8858d2b2d4b6..7ed3663332ec 100644 --- a/security/selinux/include/classmap.h +++ b/security/selinux/include/classmap.h @@ -142,7 +142,7 @@ struct security_class_mapping secclass_map[] = { "node_bind", "name_connect", NULL } }, { "memprotect", { "mmap_zero", NULL } }, { "peer", { "recv", NULL } }, - { "capability2", { "mac_override", "mac_admin", NULL } }, + { "capability2", { "mac_override", "mac_admin", "syslog", NULL } }, { "kernel_service", { "use_as_override", "create_files_as", NULL } }, { "tun_socket", { COMMON_SOCK_PERMS, NULL } }, |