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[PATCH] Fix TCP IPV6 MD5 bug.

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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>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Willy Tarreau <w@1wt.eu>
This commit is contained in:
YOSHIFUJI Hideaki
2007-07-24 21:47:05 -07:00
committed by Willy Tarreau
parent 924208714f
commit c3338ef326
1 changed files with 1 additions and 0 deletions
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net/ipv6/tcp_ipv6.c
+1
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@@ -637,6 +637,7 @@ 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();