5 files changed, 26 insertions, 5 deletions

diff --git a/fs/proc/base.c b/fs/proc/base.c
index 43871c85729d..6ba7785319de 100644
--- a/fs/proc/base.c
+++ b/fs/proc/base.c
@@ -132,6 +132,7 @@ enum pid_directory_inos {
         PROC_TGID_ATTR_EXEC,
         PROC_TGID_ATTR_FSCREATE,
         PROC_TGID_ATTR_KEYCREATE,
+        PROC_TGID_ATTR_SOCKCREATE,
 #endif
 #ifdef CONFIG_AUDITSYSCALL
         PROC_TGID_LOGINUID,
@@ -174,6 +175,7 @@ enum pid_directory_inos {
         PROC_TID_ATTR_EXEC,
         PROC_TID_ATTR_FSCREATE,
         PROC_TID_ATTR_KEYCREATE,
+        PROC_TID_ATTR_SOCKCREATE,
 #endif
 #ifdef CONFIG_AUDITSYSCALL
         PROC_TID_LOGINUID,
@@ -291,6 +293,7 @@ static struct pid_entry tgid_attr_stuff[] = {
         E(PROC_TGID_ATTR_EXEC,     "exec",     S_IFREG|S_IRUGO|S_IWUGO),
         E(PROC_TGID_ATTR_FSCREATE, "fscreate", S_IFREG|S_IRUGO|S_IWUGO),
         E(PROC_TGID_ATTR_KEYCREATE, "keycreate", S_IFREG|S_IRUGO|S_IWUGO),
+        E(PROC_TGID_ATTR_SOCKCREATE, "sockcreate", S_IFREG|S_IRUGO|S_IWUGO),
         {0,0,NULL,0}
 };
 static struct pid_entry tid_attr_stuff[] = {
@@ -299,6 +302,7 @@ static struct pid_entry tid_attr_stuff[] = {
         E(PROC_TID_ATTR_EXEC,      "exec",     S_IFREG|S_IRUGO|S_IWUGO),
         E(PROC_TID_ATTR_FSCREATE,  "fscreate", S_IFREG|S_IRUGO|S_IWUGO),
         E(PROC_TID_ATTR_KEYCREATE, "keycreate", S_IFREG|S_IRUGO|S_IWUGO),
+        E(PROC_TID_ATTR_SOCKCREATE, "sockcreate", S_IFREG|S_IRUGO|S_IWUGO),
         {0,0,NULL,0}
 };
 #endif
@@ -1764,6 +1768,8 @@ static struct dentry *proc_pident_lookup(struct inode *dir,
                 case PROC_TGID_ATTR_FSCREATE:
                 case PROC_TID_ATTR_KEYCREATE:
                 case PROC_TGID_ATTR_KEYCREATE:
+                case PROC_TID_ATTR_SOCKCREATE:
+                case PROC_TGID_ATTR_SOCKCREATE:
                         inode->i_fop = &proc_pid_attr_operations;
                         break;
 #endif
diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c
index 0d8b27513bdc..ac7f2b2e3924 100644
--- a/security/selinux/hooks.c
+++ b/security/selinux/hooks.c
@@ -1532,8 +1532,9 @@ static int selinux_bprm_set_security(struct linux_binprm *bprm)
         /* Default to the current task SID. */
         bsec->sid = tsec->sid;
 
-        /* Reset create SID on execve. */
+        /* Reset create and sockcreate SID on execve. */
         tsec->create_sid = 0;
+        tsec->sockcreate_sid = 0;
 
         if (tsec->exec_sid) {
                 newsid = tsec->exec_sid;
@@ -2585,9 +2586,10 @@ static int selinux_task_alloc_security(struct task_struct *tsk)
         tsec2->osid = tsec1->osid;
         tsec2->sid = tsec1->sid;
 
-        /* Retain the exec and create SIDs across fork */
+        /* Retain the exec, create, and sock SIDs across fork */
         tsec2->exec_sid = tsec1->exec_sid;
         tsec2->create_sid = tsec1->create_sid;
+        tsec2->sockcreate_sid = tsec1->sockcreate_sid;
 
         /* Retain ptracer SID across fork, if any.
            This will be reset by the ptrace hook upon any
@@ -2937,12 +2939,14 @@ static int selinux_socket_create(int family, int type,
 {
         int err = 0;
         struct task_security_struct *tsec;
+        u32 newsid;
 
         if (kern)
                 goto out;
 
         tsec = current->security;
-        err = avc_has_perm(tsec->sid, tsec->sid,
+        newsid = tsec->sockcreate_sid ? : tsec->sid;
+        err = avc_has_perm(tsec->sid, newsid,
                            socket_type_to_security_class(family, type,
                            protocol), SOCKET__CREATE, NULL);
 
@@ -2955,12 +2959,14 @@ static void selinux_socket_post_create(struct socket *sock, int family,
 {
         struct inode_security_struct *isec;
         struct task_security_struct *tsec;
+        u32 newsid;
 
         isec = SOCK_INODE(sock)->i_security;
 
         tsec = current->security;
+        newsid = tsec->sockcreate_sid ? : tsec->sid;
         isec->sclass = socket_type_to_security_class(family, type, protocol);
-        isec->sid = kern ? SECINITSID_KERNEL : tsec->sid;
+        isec->sid = kern ? SECINITSID_KERNEL : newsid;
         isec->initialized = 1;
 
         return;
@@ -4163,6 +4169,8 @@ static int selinux_getprocattr(struct task_struct *p,
                 sid = tsec->create_sid;
         else if (!strcmp(name, "keycreate"))
                 sid = tsec->keycreate_sid;
+        else if (!strcmp(name, "sockcreate"))
+                sid = tsec->sockcreate_sid;
         else
                 return -EINVAL;
 
@@ -4197,6 +4205,8 @@ static int selinux_setprocattr(struct task_struct *p,
                 error = task_has_perm(current, p, PROCESS__SETFSCREATE);
         else if (!strcmp(name, "keycreate"))
                 error = task_has_perm(current, p, PROCESS__SETKEYCREATE);
+        else if (!strcmp(name, "sockcreate"))
+                error = task_has_perm(current, p, PROCESS__SETSOCKCREATE);
         else if (!strcmp(name, "current"))
                 error = task_has_perm(current, p, PROCESS__SETCURRENT);
         else
@@ -4231,7 +4241,9 @@ static int selinux_setprocattr(struct task_struct *p,
                 if (error)
                         return error;
                 tsec->keycreate_sid = sid;
-        } else if (!strcmp(name, "current")) {
+        } else if (!strcmp(name, "sockcreate"))
+                tsec->sockcreate_sid = sid;
+        else if (!strcmp(name, "current")) {
                 struct av_decision avd;
 
                 if (sid == 0)
diff --git a/security/selinux/include/av_perm_to_string.h b/security/selinux/include/av_perm_to_string.h
index e777578ccd9d..7c9b58380833 100644
--- a/security/selinux/include/av_perm_to_string.h
+++ b/security/selinux/include/av_perm_to_string.h
@@ -73,6 +73,7 @@
    S_(SECCLASS_PROCESS, PROCESS__EXECSTACK, "execstack")
    S_(SECCLASS_PROCESS, PROCESS__EXECHEAP, "execheap")
    S_(SECCLASS_PROCESS, PROCESS__SETKEYCREATE, "setkeycreate")
+   S_(SECCLASS_PROCESS, PROCESS__SETSOCKCREATE, "setsockcreate")
    S_(SECCLASS_MSGQ, MSGQ__ENQUEUE, "enqueue")
    S_(SECCLASS_MSG, MSG__SEND, "send")
    S_(SECCLASS_MSG, MSG__RECEIVE, "receive")
diff --git a/security/selinux/include/av_permissions.h b/security/selinux/include/av_permissions.h
index 1e1678023b68..69fd4b48202c 100644
--- a/security/selinux/include/av_permissions.h
+++ b/security/selinux/include/av_permissions.h
@@ -468,6 +468,7 @@
 #define PROCESS__EXECSTACK                        0x04000000UL
 #define PROCESS__EXECHEAP                         0x08000000UL
 #define PROCESS__SETKEYCREATE                     0x10000000UL
+#define PROCESS__SETSOCKCREATE                    0x20000000UL
 
 #define IPC__CREATE                               0x00000001UL
 #define IPC__DESTROY                              0x00000002UL
diff --git a/security/selinux/include/objsec.h b/security/selinux/include/objsec.h
index 191b3e4484ce..cf54a304169a 100644
--- a/security/selinux/include/objsec.h
+++ b/security/selinux/include/objsec.h
@@ -33,6 +33,7 @@ struct task_security_struct {
         u32 exec_sid;        /* exec SID */
         u32 create_sid;      /* fscreate SID */
         u32 keycreate_sid;   /* keycreate SID */
+        u32 sockcreate_sid;  /* fscreate SID */
         u32 ptrace_sid;      /* SID of ptrace parent */
 };