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[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>
This commit is contained in:
YOSHIFUJI Hideaki 2007-07-24 15:27:30 -07:00 committed by David S. Miller
parent b8c1c5da15
commit ca983cefd9
1 changed files with 1 additions and 0 deletions
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net/ipv6/tcp_ipv6.c
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@ -633,6 +633,7 @@ 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();