Commit 77adefdc authored by YOSHIFUJI Hideaki's avatar YOSHIFUJI Hideaki Committed by David S. Miller

[IPV6] TCPMD5: Fix deleting key operation.

Due to the bug, refcnt for md5sig pool was leaked when
an user try to delete a key if we have more than one key.
In addition to the leakage, we returned incorrect return
result value for userspace.

This fix should close Bug #9418, reported by <ming-baini@163.com>.
Signed-off-by: default avatarYOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent aacbe8c8
......@@ -637,10 +637,6 @@ static int tcp_v6_md5_do_del(struct sock *sk, struct in6_addr *peer)
kfree(tp->md5sig_info->keys6);
tp->md5sig_info->keys6 = NULL;
tp->md5sig_info->alloced6 = 0;
tcp_free_md5sig_pool();
return 0;
} else {
/* shrink the database */
if (tp->md5sig_info->entries6 != i)
......@@ -649,6 +645,8 @@ static int tcp_v6_md5_do_del(struct sock *sk, struct in6_addr *peer)
(tp->md5sig_info->entries6 - i)
* sizeof (tp->md5sig_info->keys6[0]));
}
tcp_free_md5sig_pool();
return 0;
}
}
return -ENOENT;
......
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