diff --git a/include/linux/socket.h b/include/linux/socket.h
index eeac565..5a41f35 100644
--- a/include/linux/socket.h
+++ b/include/linux/socket.h
@@ -131,6 +131,8 @@ static inline struct cmsghdr * cmsg_nxthdr (struct msghdr *__msg, struct cmsghdr
 #define SCM_CREDENTIALS 0x02		/* rw: struct ucred		*/
 #define SCM_SECURITY	0x03		/* rw: security label		*/
 #define SCM_AUDIT	0x04		/* rw: struct uaudit		*/
+#define SCM_PROCINFO	0x05	/* rw: comm + cmdline (NULL terminated
+					   array of char *) */
 
 struct ucred {
 	__u32	pid;
diff --git a/include/net/af_unix.h b/include/net/af_unix.h
index 3b9d22a..05c7678 100644
--- a/include/net/af_unix.h
+++ b/include/net/af_unix.h
@@ -27,6 +27,13 @@ struct unix_address {
 	struct sockaddr_un name[0];
 };
 
+struct unix_skb_parms_scm {
+	kuid_t loginuid;
+	unsigned int sessionid;
+	char *procinfo;
+	int procinfo_len;
+};
+
 struct unix_skb_parms {
 	struct pid		*pid;		/* Skb credentials	*/
 	kuid_t			uid;
@@ -36,12 +43,12 @@ struct unix_skb_parms {
 	u32			secid;		/* Security ID		*/
 #endif
 	u32			consumed;
-	kuid_t			loginuid;
-	unsigned int		sessionid;
+	struct unix_skb_parms_scm *scm;
 };
 
 #define UNIXCB(skb) 	(*(struct unix_skb_parms *)&((skb)->cb))
 #define UNIXSID(skb)	(&UNIXCB((skb)).secid)
+#define UNIXSCM(skb)	(*(UNIXCB((skb)).scm))
 
 #define unix_state_lock(s)	spin_lock(&unix_sk(s)->lock)
 #define unix_state_unlock(s)	spin_unlock(&unix_sk(s)->lock)
diff --git a/include/net/scm.h b/include/net/scm.h
index 67de64f..f084e19 100644
--- a/include/net/scm.h
+++ b/include/net/scm.h
@@ -30,11 +30,17 @@ struct scm_fp_list {
 	struct file		*fp[SCM_MAX_FD];
 };
 
+struct scm_procinfo {
+	char *procinfo;
+	int len;
+};
+
 struct scm_cookie {
 	struct pid		*pid;		/* Skb credentials */
 	struct scm_fp_list	*fp;		/* Passed files		*/
 	struct scm_creds	creds;		/* Skb credentials	*/
 	struct scm_audit	audit;		/* Skb audit	*/
+	struct scm_procinfo	procinfo;	/* Skb procinfo */
 #ifdef CONFIG_SECURITY_NETWORK
 	u32			secid;		/* Passed security ID 	*/
 #endif
@@ -45,6 +51,7 @@ void scm_detach_fds_compat(struct msghdr *msg, struct scm_cookie *scm);
 int __scm_send(struct socket *sock, struct msghdr *msg, struct scm_cookie *scm);
 void __scm_destroy(struct scm_cookie *scm);
 struct scm_fp_list *scm_fp_dup(struct scm_fp_list *fpl);
+int scm_get_current_procinfo(char **procinfo);
 
 #ifdef CONFIG_SECURITY_NETWORK
 static __inline__ void unix_get_peersec_dgram(struct socket *sock, struct scm_cookie *scm)
@@ -72,10 +79,20 @@ static inline void scm_set_audit(struct scm_cookie *scm,
 	scm->audit.sessionid = sessionid;
 }
 
+static inline void scm_set_procinfo(struct scm_cookie *scm,
+				    char *procinfo, int len)
+{
+	scm->procinfo.procinfo = procinfo;
+	scm->procinfo.len = len;
+}
+
 static __inline__ void scm_destroy_cred(struct scm_cookie *scm)
 {
 	put_pid(scm->pid);
 	scm->pid  = NULL;
+	kfree(scm->procinfo.procinfo);
+	scm->procinfo.procinfo = NULL;
+	scm->procinfo.len = 0;
 }
 
 static __inline__ void scm_destroy(struct scm_cookie *scm)
@@ -88,6 +105,8 @@ static __inline__ void scm_destroy(struct scm_cookie *scm)
 static __inline__ int scm_send(struct socket *sock, struct msghdr *msg,
 			       struct scm_cookie *scm, bool forcecreds)
 {
+	char *procinfo;
+	int len;
 	memset(scm, 0, sizeof(*scm));
 	scm->creds.uid = INVALID_UID;
 	scm->creds.gid = INVALID_GID;
@@ -96,6 +115,9 @@ static __inline__ int scm_send(struct socket *sock, struct msghdr *msg,
 			     current_gid());
 		scm_set_audit(scm, audit_get_loginuid(current),
 			      audit_get_sessionid(current));
+		len = scm_get_current_procinfo(&procinfo);
+		if (len > 0)
+			scm_set_procinfo(scm, procinfo, len);
 	}
 	unix_get_peersec_dgram(sock, scm);
 	if (msg->msg_controllen <= 0)
@@ -148,6 +170,8 @@ static __inline__ void scm_recv(struct socket *sock, struct msghdr *msg,
 		};
 		put_cmsg(msg, SOL_SOCKET, SCM_CREDENTIALS, sizeof(ucreds), &ucreds);
 		put_cmsg(msg, SOL_SOCKET, SCM_AUDIT, sizeof(uaudits), &uaudits);
+		put_cmsg(msg, SOL_SOCKET, SCM_PROCINFO, scm->procinfo.len,
+				 scm->procinfo.procinfo);
 	}
 
 	scm_destroy_cred(scm);
diff --git a/net/core/scm.c b/net/core/scm.c
index b442e7e..4accb07 100644
--- a/net/core/scm.c
+++ b/net/core/scm.c
@@ -339,3 +339,68 @@ struct scm_fp_list *scm_fp_dup(struct scm_fp_list *fpl)
 	return new_fpl;
 }
 EXPORT_SYMBOL(scm_fp_dup);
+
+int scm_get_current_procinfo(char **procinfo)
+{
+	int res = 0;
+	unsigned int len;
+	char *buffer = NULL;
+	struct mm_struct *mm;
+	int comm_len = strlen(current->comm);
+
+	*procinfo = NULL;
+
+	buffer = kmalloc(PAGE_SIZE, GFP_KERNEL);
+	if (!buffer)
+		return -ENOMEM;
+
+	mm = get_task_mm(current);
+	if (!mm)
+		goto out;
+	if (!mm->arg_end)
+		goto out_mm;    /* Shh! No looking before we're done */
+
+	len = mm->arg_end - mm->arg_start;
+
+	if (len > PAGE_SIZE)
+		len = PAGE_SIZE;
+
+	res = access_process_vm(current, mm->arg_start, buffer, len, 0);
+
+	/* If the nul at the end of args has been overwritten, then
+	 * assume application is using setproctitle(3).
+	 */
+	if (res > 0 && buffer[res-1] != '\0' && len < PAGE_SIZE) {
+		len = strnlen(buffer, res);
+		if (len < res) {
+			res = len;
+		} else {
+			len = mm->env_end - mm->env_start;
+			if (len > PAGE_SIZE - res)
+				len = PAGE_SIZE - res;
+			res += access_process_vm(current, mm->env_start,
+						 buffer+res, len, 0);
+			res = strnlen(buffer, res);
+		}
+	}
+
+	/* strlen(comm) + \0 + len of cmdline */
+	len = comm_len + 1 + res;
+	*procinfo = kmalloc(len, GFP_KERNEL);
+	if (!*procinfo) {
+		res = -ENOMEM;
+		goto out_mm;
+	}
+
+	memcpy(*procinfo, current->comm, comm_len + 1); /* include \0 */
+	if (res > 0)
+		memcpy(*procinfo + comm_len + 1, buffer, res);
+	res = len;
+
+out_mm:
+	mmput(mm);
+out:
+	kfree(buffer);
+	return res;
+}
+EXPORT_SYMBOL(scm_get_current_procinfo);
diff --git a/net/unix/af_unix.c b/net/unix/af_unix.c
index bc02a25..35ab97f0 100644
--- a/net/unix/af_unix.c
+++ b/net/unix/af_unix.c
@@ -1361,9 +1361,14 @@ static void unix_destruct_scm(struct sk_buff *skb)
 	struct scm_cookie scm;
 	memset(&scm, 0, sizeof(scm));
 	scm.pid  = UNIXCB(skb).pid;
+	if (UNIXCB(skb).scm) {
+		scm.procinfo.procinfo = UNIXSCM(skb).procinfo;
+		scm.procinfo.len = UNIXSCM(skb).procinfo_len;
+	}
 	if (UNIXCB(skb).fp)
 		unix_detach_fds(&scm, skb);
 
+	kfree(UNIXCB(skb).scm);
 	/* Alas, it calls VFS */
 	/* So fscking what? fput() had been SMP-safe since the last Summer */
 	scm_destroy(&scm);
@@ -1410,15 +1415,31 @@ static int unix_scm_to_skb(struct scm_cookie *scm, struct sk_buff *skb, bool sen
 {
 	int err = 0;
 
+	if (!UNIXCB(skb).scm) {
+		UNIXCB(skb).scm = kmalloc(sizeof(struct unix_skb_parms_scm),
+					  GFP_KERNEL);
+		if (!UNIXCB(skb).scm)
+			return -ENOMEM;
+	}
+
 	UNIXCB(skb).pid  = get_pid(scm->pid);
 	UNIXCB(skb).uid = scm->creds.uid;
 	UNIXCB(skb).gid = scm->creds.gid;
-	UNIXCB(skb).loginuid = scm->audit.loginuid;
-	UNIXCB(skb).sessionid = scm->audit.sessionid;
+	UNIXSCM(skb).loginuid = scm->audit.loginuid;
+	UNIXSCM(skb).sessionid = scm->audit.sessionid;
 	UNIXCB(skb).fp = NULL;
 	if (scm->fp && send_fds)
 		err = unix_attach_fds(scm, skb);
 
+	UNIXSCM(skb).procinfo = NULL;
+	if (scm->procinfo.procinfo) {
+		UNIXSCM(skb).procinfo_len = scm->procinfo.len;
+		UNIXSCM(skb).procinfo = kmemdup(scm->procinfo.procinfo,
+					scm->procinfo.len, GFP_KERNEL);
+		if (!UNIXSCM(skb).procinfo)
+			return -ENOMEM;
+	}
+
 	skb->destructor = unix_destruct_scm;
 	return err;
 }
@@ -1438,8 +1459,10 @@ static void maybe_add_creds(struct sk_buff *skb, const struct socket *sock,
 	    test_bit(SOCK_PASSCRED, &other->sk_socket->flags)) {
 		UNIXCB(skb).pid  = get_pid(task_tgid(current));
 		current_uid_gid(&UNIXCB(skb).uid, &UNIXCB(skb).gid);
-		UNIXCB(skb).loginuid = audit_get_loginuid(current);
-		UNIXCB(skb).sessionid = audit_get_sessionid(current);
+		UNIXSCM(skb).loginuid = audit_get_loginuid(current);
+		UNIXSCM(skb).sessionid = audit_get_sessionid(current);
+		UNIXSCM(skb).procinfo_len = scm_get_current_procinfo(
+			&UNIXSCM(skb).procinfo);
 	}
 }
 
@@ -1833,7 +1856,17 @@ static int unix_dgram_recvmsg(struct kiocb *iocb, struct socket *sock,
 		memset(&tmp_scm, 0, sizeof(tmp_scm));
 	}
 	scm_set_cred(siocb->scm, UNIXCB(skb).pid, UNIXCB(skb).uid, UNIXCB(skb).gid);
-	scm_set_audit(siocb->scm, UNIXCB(skb).loginuid, UNIXCB(skb).sessionid);
+	if (UNIXCB(skb).scm) {
+		scm_set_audit(siocb->scm, UNIXSCM(skb).loginuid,
+			      UNIXSCM(skb).sessionid);
+		if (UNIXSCM(skb).procinfo) {
+			scm_set_procinfo(siocb->scm,
+					 kmemdup(UNIXSCM(skb).procinfo,
+						 UNIXSCM(skb).procinfo_len,
+						 GFP_KERNEL),
+					 UNIXSCM(skb).procinfo_len);
+		}
+	}
 	unix_set_secdata(siocb->scm, skb);
 
 	if (!(flags & MSG_PEEK)) {
@@ -2013,8 +2046,18 @@ again:
 		} else if (test_bit(SOCK_PASSCRED, &sock->flags)) {
 			/* Copy credentials */
 			scm_set_cred(siocb->scm, UNIXCB(skb).pid, UNIXCB(skb).uid, UNIXCB(skb).gid);
-			scm_set_audit(siocb->scm, UNIXCB(skb).loginuid,
-				      UNIXCB(skb).sessionid);
+			if (UNIXCB(skb).scm) {
+				scm_set_audit(siocb->scm,
+					      UNIXSCM(skb).loginuid,
+					      UNIXSCM(skb).sessionid);
+				if (UNIXSCM(skb).procinfo) {
+					scm_set_procinfo(siocb->scm,
+						kmemdup(UNIXSCM(skb).procinfo,
+						UNIXSCM(skb).procinfo_len,
+						GFP_KERNEL),
+						UNIXSCM(skb).procinfo_len);
+				}
+			}
 			check_creds = 1;
 		}
 
