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| author | Guillaume Nault <g.nault@alphalink.fr> | 2016-11-29 13:09:44 +0100 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2016-11-30 14:14:07 -0500 |
| commit | 0382a25af3c771a8e4d5e417d1834cbe28c2aaac (patch) | |
| tree | 91d6b49fc8dab4cb02312da66d018a72975bd408 /include | |
| parent | bb83d62fa83405d7c325873a317c9374f98eedef (diff) | |
| download | linux-rpi-0382a25af3c771a8e4d5e417d1834cbe28c2aaac.tar.gz linux-rpi-0382a25af3c771a8e4d5e417d1834cbe28c2aaac.tar.bz2 linux-rpi-0382a25af3c771a8e4d5e417d1834cbe28c2aaac.zip | |
l2tp: lock socket before checking flags in connect()
Socket flags aren't updated atomically, so the socket must be locked
while reading the SOCK_ZAPPED flag.
This issue exists for both l2tp_ip and l2tp_ip6. For IPv6, this patch
also brings error handling for __ip6_datagram_connect() failures.
Signed-off-by: Guillaume Nault <g.nault@alphalink.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include')
| -rw-r--r-- | include/net/ipv6.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/net/ipv6.h b/include/net/ipv6.h index 8fed1cd78658..f11ca837361b 100644 --- a/include/net/ipv6.h +++ b/include/net/ipv6.h @@ -970,6 +970,8 @@ int compat_ipv6_setsockopt(struct sock *sk, int level, int optname, int compat_ipv6_getsockopt(struct sock *sk, int level, int optname, char __user *optval, int __user *optlen); +int __ip6_datagram_connect(struct sock *sk, struct sockaddr *addr, + int addr_len); int ip6_datagram_connect(struct sock *sk, struct sockaddr *addr, int addr_len); int ip6_datagram_connect_v6_only(struct sock *sk, struct sockaddr *addr, int addr_len); |