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Commit 354faf09 authored by YOSHIFUJI Hideaki's avatar YOSHIFUJI Hideaki Committed by David S. Miller
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[IPV4] TCPMD5: Use memmove() instead of memcpy() because we have overlaps. 



Signed-off-by: default avatarYOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent a80cc20d

net/ipv4/tcp_ipv4.c

+4 −4
Original line number Diff line number Diff line
@@ -938,7 +938,7 @@ int tcp_v4_md5_do_del(struct sock *sk, __be32 addr) 
				tp->md5sig_info->alloced4 = 0;

			} else if (tp->md5sig_info->entries4 != i) {

				/* Need to do some manipulation */

				memcpy(&tp->md5sig_info->keys4[i],

				memmove(&tp->md5sig_info->keys4[i],

					&tp->md5sig_info->keys4[i+1],

					(tp->md5sig_info->entries4 - i) *

					 sizeof(struct tcp4_md5sig_key));