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authorTony Battersby <tonyb@cybernetics.com>2007-10-10 21:09:04 -0700
committerDavid S. Miller <davem@davemloft.net>2007-10-10 21:09:04 -0700
commitfa8705b00aeca19d91a1437b8a5cf865999b28f6 (patch)
treed91cf4fe1b632836d286a1216b4f821903b8d4f5
parent414c66e00e9fb4572e38bd14e6cc570eae8c5a61 (diff)
[NET]: sanitize kernel_accept() error path
If kernel_accept() returns an error, it may pass back a pointer to freed memory (which the caller should ignore). Make it pass back NULL instead for better safety. Signed-off-by: Tony Battersby <tonyb@cybernetics.com> Signed-off-by: David S. Miller <davem@davemloft.net>
-rw-r--r--net/socket.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/net/socket.c b/net/socket.c
index d2336472f494..379b3a390755 100644
--- a/net/socket.c
+++ b/net/socket.c
@@ -2235,6 +2235,7 @@ int kernel_accept(struct socket *sock, struct socket **newsock, int flags)
err = sock->ops->accept(sock, *newsock, flags);
if (err < 0) {
sock_release(*newsock);
+ *newsock = NULL;
goto done;
}