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525e1dffed
commit 21ba8847f857028dc83a0f341e16ecc616e34740 upstream.
Currently, we use check_hlist() for garbage colleciton. However, we
use the ‘zone’ from the counted entry to query the existence of
existing entries in the hlist. This could be wrong when they are in
different zones, and this patch fixes this issue.
Fixes: e59ea3df3fc2 ("netfilter: xt_connlimit: honor conntrack zone if available")
Signed-off-by: Yi-Hung Wei <yihung.wei@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
[mfo: backport: refresh context lines and use older symbol/file names, note hunk 5:
- nf_conncount.c -> xt_connlimit.c
- nf_conncount_rb -> xt_connlimit_rb
- nf_conncount_tuple -> xt_connlimit_conn
- hunk 5: remove check for non-NULL 'tuple', that isn't required as it's introduced
by upstream commit 35d8deb80 ("netfilter: conncount: Support count only use case")
which addresses nf_conncount_count() that does not exist yet -- it's introduced by
upstream commit 625c556118f3 ("netfilter: connlimit: split xt_connlimit into front
and backend"), a refactor change.
- nft_connlimit.c -> removed, not used/doesn't exist yet.]
Signed-off-by: Mauricio Faria de Oliveira <mfo@canonical.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>