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| author | Thomas Graf <tgraf@suug.ch> | 2014-12-23 01:13:18 +0100 |
|---|---|---|
| committer | Jiri Slaby <jslaby@suse.cz> | 2015-01-26 14:39:16 +0100 |
| commit | 00c47292b1cdf7e721dccc5659879732eca6451a (patch) | |
| tree | 58db3c817d663fed781e8351f40e792efdcd50f1 /net/core | |
| parent | 6e1a8eb4ed3f954059ffae5563710275bc63d4fa (diff) | |
| download | lwn-00c47292b1cdf7e721dccc5659879732eca6451a.tar.gz lwn-00c47292b1cdf7e721dccc5659879732eca6451a.zip | |
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: Jiri Slaby <jslaby@suse.cz>
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 a8cf33868f9c..17313d17a923 100644 --- a/net/core/skbuff.c +++ b/net/core/skbuff.c @@ -3523,6 +3523,7 @@ void skb_scrub_packet(struct sk_buff *skb, bool xnet) skb->local_df = 0; skb_dst_drop(skb); skb->mark = 0; + skb_init_secmark(skb); secpath_reset(skb); nf_reset(skb); nf_reset_trace(skb); |