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authorYOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>2007-07-24 21:47:05 -0700
committerGreg Kroah-Hartman <gregkh@suse.de>2007-08-09 14:27:30 -0700
commit668df9fe157abbc90efc0ca054048300afb5937c (patch)
treeb010253f7957cdc538085d04aa529b454081005c /net/ipv6
parentdffc659ff8b135a29b36c8cc45e9f67f8c5dbfa7 (diff)
Fix TCP IPV6 MD5 bug.
[TCPv6] MD5SIG: Ensure to reset allocation count to avoid panic. After clearing all passwords for IPv6 peers, we need to set allocation count to zero as well as we free the storage. Otherwise, we panic when a user trys to (re)add a password. Discovered and fixed by MIYAJIMA Mitsuharu <miyajima.mitsuharu@anchor.jp>. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'net/ipv6')
-rw-r--r--net/ipv6/tcp_ipv6.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c
index 193d9d60bb7a..17bbdc3d4fea 100644
--- a/net/ipv6/tcp_ipv6.c
+++ b/net/ipv6/tcp_ipv6.c
@@ -644,6 +644,7 @@ static int tcp_v6_md5_do_del(struct sock *sk, struct in6_addr *peer)
if (tp->md5sig_info->entries6 == 0) {
kfree(tp->md5sig_info->keys6);
tp->md5sig_info->keys6 = NULL;
+ tp->md5sig_info->alloced6 = 0;
tcp_free_md5sig_pool();