diff options
| author |   Pablo Neira Ayuso <pablo@netfilter.org> | 2017-12-19 12:01:21 +0100 |
|---|---|---|
| committer | Pablo Neira Ayuso <pablo@netfilter.org> | 2017-12-21 00:15:11 +0100 |
| commit | 24c0df82ef7919e4d10cf2e4e65d368eb2e8ea21 (patch) | |
| tree | fa2e3a41f2c9c59bf759e70a78823ca34646c55d /net | |
| parent | ipv4: Fix use-after-free when flushing FIB tables (diff) | |
| download | linux-dev-24c0df82ef7919e4d10cf2e4e65d368eb2e8ea21.tar.xz linux-dev-24c0df82ef7919e4d10cf2e4e65d368eb2e8ea21.zip | |
netfilter: nf_tables: fix chain filter in nf_tables_dump_rules()
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>
Diffstat (limited to 'net')
| -rw-r--r-- | net/netfilter/nf_tables_api.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/net/netfilter/nf_tables_api.c b/net/netfilter/nf_tables_api.c index 10798b357481..8d4526651661 100644 --- 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 sk_buff *skb, 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; |