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author | Greg Kroah-Hartman | 2019-01-28 08:44:58 +0100 |
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committer | Greg Kroah-Hartman | 2019-01-28 08:44:58 +0100 |
commit | c9381e185fdcf86e9d7966d638c933894f87cdd7 (patch) | |
tree | d99259aded85a3fb95e9d52c56d9d3a0cfdfe460 /net/ipv6/af_inet6.c | |
parent | usb: ftdi-elan: Fix if == else warnings in ftdi_elan_respond_engine (diff) | |
parent | Linux 5.0-rc4 (diff) | |
download | kernel-qcow2-linux-c9381e185fdcf86e9d7966d638c933894f87cdd7.tar.gz kernel-qcow2-linux-c9381e185fdcf86e9d7966d638c933894f87cdd7.tar.xz kernel-qcow2-linux-c9381e185fdcf86e9d7966d638c933894f87cdd7.zip |
Merge 5.0-rc4 into usb-next
We need the USB fixes in here as well.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'net/ipv6/af_inet6.c')
-rw-r--r-- | net/ipv6/af_inet6.c | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/net/ipv6/af_inet6.c b/net/ipv6/af_inet6.c index 0bfb6cc0a30a..d99753b5e39b 100644 --- a/net/ipv6/af_inet6.c +++ b/net/ipv6/af_inet6.c @@ -310,6 +310,7 @@ static int __inet6_bind(struct sock *sk, struct sockaddr *uaddr, int addr_len, /* Check if the address belongs to the host. */ if (addr_type == IPV6_ADDR_MAPPED) { + struct net_device *dev = NULL; int chk_addr_ret; /* Binding to v4-mapped address on a v6-only socket @@ -320,9 +321,20 @@ static int __inet6_bind(struct sock *sk, struct sockaddr *uaddr, int addr_len, goto out; } + rcu_read_lock(); + if (sk->sk_bound_dev_if) { + dev = dev_get_by_index_rcu(net, sk->sk_bound_dev_if); + if (!dev) { + err = -ENODEV; + goto out_unlock; + } + } + /* Reproduce AF_INET checks to make the bindings consistent */ v4addr = addr->sin6_addr.s6_addr32[3]; - chk_addr_ret = inet_addr_type(net, v4addr); + chk_addr_ret = inet_addr_type_dev_table(net, dev, v4addr); + rcu_read_unlock(); + if (!inet_can_nonlocal_bind(net, inet) && v4addr != htonl(INADDR_ANY) && chk_addr_ret != RTN_LOCAL && |