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Diffstat (limited to 'security')
-rw-r--r--security/dummy.c6
-rw-r--r--security/selinux/hooks.c20
2 files changed, 21 insertions, 5 deletions
diff --git a/security/dummy.c b/security/dummy.c
index 913540808577..de53f6eb0c08 100644
--- a/security/dummy.c
+++ b/security/dummy.c
@@ -506,6 +506,9 @@ static int dummy_task_getsid (struct task_struct *p)
return 0;
}
+static void dummy_task_getsecid (struct task_struct *p, u32 *secid)
+{ }
+
static int dummy_task_setgroups (struct group_info *group_info)
{
return 0;
@@ -548,7 +551,7 @@ static int dummy_task_wait (struct task_struct *p)
}
static int dummy_task_kill (struct task_struct *p, struct siginfo *info,
- int sig)
+ int sig, u32 secid)
{
return 0;
}
@@ -981,6 +984,7 @@ void security_fixup_ops (struct security_operations *ops)
set_to_dummy_if_null(ops, task_setpgid);
set_to_dummy_if_null(ops, task_getpgid);
set_to_dummy_if_null(ops, task_getsid);
+ set_to_dummy_if_null(ops, task_getsecid);
set_to_dummy_if_null(ops, task_setgroups);
set_to_dummy_if_null(ops, task_setnice);
set_to_dummy_if_null(ops, task_setioprio);
diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c
index b85afcf38527..a5189a347354 100644
--- a/security/selinux/hooks.c
+++ b/security/selinux/hooks.c
@@ -2644,6 +2644,11 @@ static int selinux_task_getsid(struct task_struct *p)
return task_has_perm(current, p, PROCESS__GETSESSION);
}
+static void selinux_task_getsecid(struct task_struct *p, u32 *secid)
+{
+ selinux_get_task_sid(p, secid);
+}
+
static int selinux_task_setgroups(struct group_info *group_info)
{
/* See the comment for setuid above. */
@@ -2700,12 +2705,14 @@ static int selinux_task_movememory(struct task_struct *p)
return task_has_perm(current, p, PROCESS__SETSCHED);
}
-static int selinux_task_kill(struct task_struct *p, struct siginfo *info, int sig)
+static int selinux_task_kill(struct task_struct *p, struct siginfo *info,
+ int sig, u32 secid)
{
u32 perm;
int rc;
+ struct task_security_struct *tsec;
- rc = secondary_ops->task_kill(p, info, sig);
+ rc = secondary_ops->task_kill(p, info, sig, secid);
if (rc)
return rc;
@@ -2716,8 +2723,12 @@ static int selinux_task_kill(struct task_struct *p, struct siginfo *info, int si
perm = PROCESS__SIGNULL; /* null signal; existence test */
else
perm = signal_to_av(sig);
-
- return task_has_perm(current, p, perm);
+ tsec = p->security;
+ if (secid)
+ rc = avc_has_perm(secid, tsec->sid, SECCLASS_PROCESS, perm, NULL);
+ else
+ rc = task_has_perm(current, p, perm);
+ return rc;
}
static int selinux_task_prctl(int option,
@@ -4434,6 +4445,7 @@ static struct security_operations selinux_ops = {
.task_setpgid = selinux_task_setpgid,
.task_getpgid = selinux_task_getpgid,
.task_getsid = selinux_task_getsid,
+ .task_getsecid = selinux_task_getsecid,
.task_setgroups = selinux_task_setgroups,
.task_setnice = selinux_task_setnice,
.task_setioprio = selinux_task_setioprio,