Merge branch 'mpi-master' into wip-k-fmlpwip-k-fmlp

Conflicts:
	litmus/sched_cedf.c

1 files changed, 19 insertions, 7 deletions

diff --git a/net/compat.c b/net/compat.c
index 63d260e81472..c578d9382e19 100644
--- a/net/compat.c
+++ b/net/compat.c
@@ -41,10 +41,12 @@ static inline int iov_from_user_compat_to_kern(struct iovec *kiov,
                 compat_size_t len;
 
                 if (get_user(len, &uiov32->iov_len) ||
-                   get_user(buf, &uiov32->iov_base)) {
-                        tot_len = -EFAULT;
-                        break;
-                }
+                    get_user(buf, &uiov32->iov_base))
+                        return -EFAULT;
+
+                if (len > INT_MAX - tot_len)
+                        len = INT_MAX - tot_len;
+
                 tot_len += len;
                 kiov->iov_base = compat_ptr(buf);
                 kiov->iov_len = (__kernel_size_t) len;
@@ -720,11 +722,11 @@ EXPORT_SYMBOL(compat_mc_getsockopt);
 
 /* Argument list sizes for compat_sys_socketcall */
 #define AL(x) ((x) * sizeof(u32))
-static unsigned char nas[20] = {
+static unsigned char nas[21] = {
         AL(0), AL(3), AL(3), AL(3), AL(2), AL(3),
         AL(3), AL(3), AL(4), AL(4), AL(4), AL(6),
         AL(6), AL(2), AL(5), AL(5), AL(3), AL(3),
-        AL(4), AL(5)
+        AL(4), AL(5), AL(4)
 };
 #undef AL
 
@@ -733,6 +735,13 @@ asmlinkage long compat_sys_sendmsg(int fd, struct compat_msghdr __user *msg, uns
         return sys_sendmsg(fd, (struct msghdr __user *)msg, flags | MSG_CMSG_COMPAT);
 }
 
+asmlinkage long compat_sys_sendmmsg(int fd, struct compat_mmsghdr __user *mmsg,
+                                    unsigned vlen, unsigned int flags)
+{
+        return __sys_sendmmsg(fd, (struct mmsghdr __user *)mmsg, vlen,
+                              flags | MSG_CMSG_COMPAT);
+}
+
 asmlinkage long compat_sys_recvmsg(int fd, struct compat_msghdr __user *msg, unsigned int flags)
 {
         return sys_recvmsg(fd, (struct msghdr __user *)msg, flags | MSG_CMSG_COMPAT);
@@ -778,7 +787,7 @@ asmlinkage long compat_sys_socketcall(int call, u32 __user *args)
         u32 a[6];
         u32 a0, a1;
 
-        if (call < SYS_SOCKET || call > SYS_RECVMMSG)
+        if (call < SYS_SOCKET || call > SYS_SENDMMSG)
                 return -EINVAL;
         if (copy_from_user(a, args, nas[call]))
                 return -EFAULT;
@@ -837,6 +846,9 @@ asmlinkage long compat_sys_socketcall(int call, u32 __user *args)
         case SYS_SENDMSG:
                 ret = compat_sys_sendmsg(a0, compat_ptr(a1), a[2]);
                 break;
+        case SYS_SENDMMSG:
+                ret = compat_sys_sendmmsg(a0, compat_ptr(a1), a[2], a[3]);
+                break;
         case SYS_RECVMSG:
                 ret = compat_sys_recvmsg(a0, compat_ptr(a1), a[2]);
                 break;