Messages in this thread Patch in this message | | | From | Greg Kroah-Hartman <> | Subject | [PATCH 4.14 043/115] netfilter: nf_tables: fix chain filter in nf_tables_dump_rules() | Date | Fri, 2 Mar 2018 09:50:46 +0100 |
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4.14-stable review patch. If anyone has any objections, please let me know.
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From: Pablo Neira Ayuso <pablo@netfilter.org>
[ Upstream commit 24c0df82ef7919e4d10cf2e4e65d368eb2e8ea21 ]
ctx->chain may be null now that we have very large object names, so we cannot check for ctx->chain[0] here.
Fixes: b7263e071aba7 ("netfilter: nf_tables: Allow table names of up to 255 chars") Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org> Acked-by: Phil Sutter <phil@nwl.cc> Signed-off-by: Sasha Levin <alexander.levin@verizon.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> --- net/netfilter/nf_tables_api.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/net/netfilter/nf_tables_api.c +++ b/net/netfilter/nf_tables_api.c @@ -2072,7 +2072,7 @@ static int nf_tables_dump_rules(struct s continue; list_for_each_entry_rcu(chain, &table->chains, list) { - if (ctx && ctx->chain[0] && + if (ctx && ctx->chain && strcmp(ctx->chain, chain->name) != 0) continue;
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