diff options
| author | Thomas Graf <tgraf@suug.ch> | 2014-12-23 01:13:18 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2015-01-27 08:29:33 -0800 |
| commit | 253ab5247813de6ce1d5efcdf9bf7cde749d8597 (patch) | |
| tree | 3c198b1a2113b146dcee98b0ff0bccc886741cb0 /net/core | |
| parent | 29862482563a6a445174109b149f210f69094da7 (diff) | |
net: Reset secmark when scrubbing packet
[ Upstream commit b8fb4e0648a2ab3734140342002f68fb0c7d1602 ]
skb_scrub_packet() is called when a packet switches between a context
such as between underlay and overlay, between namespaces, or between
L3 subnets.
While we already scrub the packet mark, connection tracking entry,
and cached destination, the security mark/context is left intact.
It seems wrong to inherit the security context of a packet when going
from overlay to underlay or across forwarding paths.
Signed-off-by: Thomas Graf <tgraf@suug.ch>
Acked-by: Flavio Leitner <fbl@sysclose.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'net/core')
| -rw-r--r-- | net/core/skbuff.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/net/core/skbuff.c b/net/core/skbuff.c index 32e31c299631..d7543d0fd744 100644 --- a/net/core/skbuff.c +++ b/net/core/skbuff.c @@ -4040,6 +4040,7 @@ void skb_scrub_packet(struct sk_buff *skb, bool xnet) skb->ignore_df = 0; skb_dst_drop(skb); skb->mark = 0; + skb_init_secmark(skb); secpath_reset(skb); nf_reset(skb); nf_reset_trace(skb); |