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net/ipv4: Check for mistakenly passed in non-IPv4 address

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[ Upstream commit d0733d2e29b652b2e7b1438ececa732e4eed98eb ]

Check against mistakenly passing in IPv6 addresses (which would result
in an INADDR_ANY bind) or similar incompatible sockaddrs.

Signed-off-by: Marcus Meissner <meissner@suse.de>
Cc: Reinhard Max <max@suse.de>
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:
Marcus Meissner 2011-06-01 21:05:22 -07:00 committed by Willy Tarreau
parent af79350f15
commit 93050f523a
1 changed files with 3 additions and 0 deletions
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3
net/ipv4/af_inet.c
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@ -458,6 +458,9 @@ int inet_bind(struct socket *sock, struct sockaddr *uaddr, int addr_len)
if (addr_len < sizeof(struct sockaddr_in))
goto out;
if (addr->sin_family != AF_INET)
goto out;
chk_addr_ret = inet_addr_type(sock_net(sk), addr->sin_addr.s_addr);
/* Not specified by any standard per-se, however it breaks too