From 8228a18dd30f5c988b722495ea6c25cb1d2be035 Mon Sep 17 00:00:00 2001
From: Leigh Brown <leigh@solinno.co.uk>
Date: Sun, 17 Dec 2006 17:12:30 -0800
Subject: [TCP]: Fix oops caused by tcp_v4_md5_do_del
md5sig_info.alloced4 must be set to zero when freeing keys4, otherwise
it will not be alloc'd again when another key is added to the same
socket by tcp_v4_md5_do_add.
Signed-off-by: Leigh Brown <leigh@solinno.co.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
net/ipv4/tcp_ipv4.c | 1 +
1 file changed, 1 insertion(+)
(limited to 'net')
diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c
index a1222d6968c4..fa814fc506d5 100644
--- a/net/ipv4/tcp_ipv4.c
+++ b/net/ipv4/tcp_ipv4.c
@@ -928,6 +928,7 @@ int tcp_v4_md5_do_del(struct sock *sk, __be32 addr)
if (tp->md5sig_info->entries4 == 0) {
kfree(tp->md5sig_info->keys4);
tp->md5sig_info->keys4 = NULL;
+ tp->md5sig_info->alloced4 = 0;
} else if (tp->md5sig_info->entries4 != i) {
/* Need to do some manipulation */
memcpy(&tp->md5sig_info->keys4[i],
--
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