patch-1.3.7 linux/net/ipv4/af_inet.c

• Lines: 21
• Date: Thu Jul 6 13:24:59 1995
• Orig file: v1.3.6/linux/net/ipv4/af_inet.c
• Orig date: Fri Jun 30 16:22:31 1995

diff -u --recursive --new-file v1.3.6/linux/net/ipv4/af_inet.c linux/net/ipv4/af_inet.c
@@ -1280,6 +1280,7 @@
 {
 	struct sock *sk=(struct sock *)sock->data;
 	int err;
+	int tmp;
 
 	switch(cmd) 
 	{
@@ -1288,7 +1289,11 @@
 			err=verify_area(VERIFY_READ,(int *)arg,sizeof(long));
 			if(err)
 				return err;
-			sk->proc = get_fs_long((int *) arg);
+			tmp = get_fs_long((int *) arg);
+			/* see inet_fcntl */
+			if (current->pid != tmp && current->pgrp != -tmp && !suser())
+				return -EPERM;
+			sk->proc = tmp;
 			return(0);
 		case FIOGETOWN:
 		case SIOCGPGRP: