[patch 09/23] Fix error returns in sys_socketpair()

[Greg KH <gregkh@suse.de>]

-stable review patch.  If anyone has any objections, please let us know.

------------------

From: David Miller <davem@davemloft.net>

patch bf3c23d171e35e6e168074a1514b0acd59cfd81a in mainline.

[NET]: Fix error reporting in sys_socketpair().

If either of the two sock_alloc_fd() calls fail, we
forget to update 'err' and thus we'll erroneously
return zero in these cases.

Based upon a report and patch from Rich Paul, and
commentary from Chuck Ebbert.

Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

---
 net/socket.c |    5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

--- a/net/socket.c
+++ b/net/socket.c
@@ -1245,11 +1245,14 @@ asmlinkage long sys_socketpair(int famil
 		goto out_release_both;
 
 	fd1 = sock_alloc_fd(&newfile1);
-	if (unlikely(fd1 < 0))
+	if (unlikely(fd1 < 0)) {
+		err = fd1;
 		goto out_release_both;
+	}
 
 	fd2 = sock_alloc_fd(&newfile2);
 	if (unlikely(fd2 < 0)) {
+		err = fd2;
 		put_filp(newfile1);
 		put_unused_fd(fd1);
 		goto out_release_both;

-- 
-
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