On Fri, Nov 19, 2021 at 5:52 PM Paul Moore <paul@xxxxxxxxxxxxxx> wrote: > On Wed, Sep 29, 2021 at 3:17 PM Paul Moore <paul@xxxxxxxxxxxxxx> wrote: > > > > The security_task_getsecid_subj() LSM hook invites misuse by allowing > > callers to specify a task even though the hook is only safe when the > > current task is referenced. Fix this by removing the task_struct > > argument to the hook, requiring LSM implementations to use the > > current task. While we are changing the hook declaration we also > > rename the function to security_current_getsecid_subj() in an effort > > to reinforce that the hook captures the subjective credentials of the > > current task and not an arbitrary task on the system. > > > > Signed-off-by: Paul Moore <paul@xxxxxxxxxxxxxx> > > --- > > include/linux/lsm_hook_defs.h | 3 +-- > > include/linux/lsm_hooks.h | 8 +++----- > > include/linux/security.h | 4 ++-- > > kernel/audit.c | 4 ++-- > > kernel/auditfilter.c | 3 +-- > > kernel/auditsc.c | 10 +++++++++- > > net/netlabel/netlabel_unlabeled.c | 2 +- > > net/netlabel/netlabel_user.h | 2 +- > > security/apparmor/lsm.c | 13 ++++++++++--- > > security/integrity/ima/ima_appraise.c | 2 +- > > security/integrity/ima/ima_main.c | 14 +++++++------- > > security/security.c | 6 +++--- > > security/selinux/hooks.c | 19 +++---------------- > > security/smack/smack.h | 16 ---------------- > > security/smack/smack_lsm.c | 9 ++++----- > > 15 files changed, 48 insertions(+), 67 deletions(-) > > I never saw any comments, positive or negative, on this patch so I'll > plan on merging it early next week. If you've got objections, now is > the time to speak up. I just merged this patch, with the AppArmor tweak suggested by Serge, into selinux/next. Thanks everyone. -- paul moore www.paul-moore.com
