Messages in this thread Patch in this message |  | | | Date | Fri, 09 Oct 2009 16:34:46 -0700 | | From | Greg KH <> | | Subject | [patch 35/37] ax25: Fix possible oops in ax25_make_new |
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2.6.31-stable review patch. If anyone has any objections, please let us know.
------------------ From: Jarek Poplawski <jarkao2@gmail.com> [ Upstream commit 8c185ab6185bf5e67766edb000ce428269364c86 ]
In ax25_make_new, if kmemdup of digipeat returns an error, there would be an oops in sk_free while calling sk_destruct, because sk_protinfo is NULL at the moment; move sk->sk_destruct initialization after this.
BTW of reported-by: Bernard Pidoux F6BVP <f6bvp@free.fr>
Signed-off-by: Jarek Poplawski <jarkao2@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> --- net/ax25/af_ax25.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/net/ax25/af_ax25.c +++ b/net/ax25/af_ax25.c @@ -893,7 +893,6 @@ struct sock *ax25_make_new(struct sock * sock_init_data(NULL, sk); - sk->sk_destruct = ax25_free_sock; sk->sk_type = osk->sk_type; sk->sk_priority = osk->sk_priority; sk->sk_protocol = osk->sk_protocol; @@ -931,6 +930,7 @@ struct sock *ax25_make_new(struct sock * } sk->sk_protinfo = ax25; + sk->sk_destruct = ax25_free_sock; ax25->sk = sk; return sk;
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