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authorYOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>2007-11-20 17:31:23 -0800
committerDavid S. Miller <davem@davemloft.net>2007-11-20 17:31:23 -0800
commit77adefdc9863d63f8d8bdc6a9adcdf9a6b0e2410 (patch)
tree4fe2532ad5ab2e9db497cf416acd5db634a4cd6a /net/ipv6
parentaacbe8c8800adfea42eb754396c6ebcd992cb36a (diff)
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[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: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv6')
-rw-r--r--net/ipv6/tcp_ipv6.c6
1 files changed, 2 insertions, 4 deletions
diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c
index b1bfbdd..93980c3 100644
--- a/net/ipv6/tcp_ipv6.c
+++ b/net/ipv6/tcp_ipv6.c
@@ -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;