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| author | Sabrina Dubroca <sd@queasysnail.net> | 2018-06-05 16:01:59 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-06-11 23:49:19 +0300 |
| commit | 989986db8f663561a1b89e2fd1170e56265e4e19 (patch) | |
| tree | fca0650901165e1e8c83609a425bb46afc5e92c9 | |
| parent | cbf561634db3a364d0ec8868fc23c21d955b30dd (diff) | |
| download | linux-989986db8f663561a1b89e2fd1170e56265e4e19.tar.xz | |
ip6mr: only set ip6mr_table from setsockopt when ip6mr_new_table succeeds
[ Upstream commit 848235edb5c93ed086700584c8ff64f6d7fc778d ]
Currently, raw6_sk(sk)->ip6mr_table is set unconditionally during
ip6_mroute_setsockopt(MRT6_TABLE). A subsequent attempt at the same
setsockopt will fail with -ENOENT, since we haven't actually created
that table.
A similar fix for ipv4 was included in commit 5e1859fbcc3c ("ipv4: ipmr:
various fixes and cleanups").
Fixes: d1db275dd3f6 ("ipv6: ip6mr: support multiple tables")
Signed-off-by: Sabrina Dubroca <sd@queasysnail.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | net/ipv6/ip6mr.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/net/ipv6/ip6mr.c b/net/ipv6/ip6mr.c index e1060f28410d..8015e74fd7d9 100644 --- a/net/ipv6/ip6mr.c +++ b/net/ipv6/ip6mr.c @@ -1795,7 +1795,8 @@ int ip6_mroute_setsockopt(struct sock *sk, int optname, char __user *optval, uns ret = 0; if (!ip6mr_new_table(net, v)) ret = -ENOMEM; - raw6_sk(sk)->ip6mr_table = v; + else + raw6_sk(sk)->ip6mr_table = v; rtnl_unlock(); return ret; } |