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| author | Florian Westphal <fw@strlen.de> | 2024-02-19 16:58:04 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2024-03-01 13:16:51 +0100 |
| commit | 31ea574aeca1aa488e18716459bde057217637af (patch) | |
| tree | b640009b3cbb5eedcf755afab6fefb8bb32e95f5 | |
| parent | 31e10d6cb0c9532ff070cf50da1657c3acee9276 (diff) | |
| download | linux-stable-31ea574aeca1aa488e18716459bde057217637af.tar.gz linux-stable-31ea574aeca1aa488e18716459bde057217637af.tar.bz2 linux-stable-31ea574aeca1aa488e18716459bde057217637af.zip | |
netfilter: nf_tables: set dormant flag on hook register failure
[ Upstream commit bccebf64701735533c8db37773eeacc6566cc8ec ]
We need to set the dormant flag again if we fail to register
the hooks.
During memory pressure hook registration can fail and we end up
with a table marked as active but no registered hooks.
On table/base chain deletion, nf_tables will attempt to unregister
the hook again which yields a warn splat from the nftables core.
Reported-and-tested-by: syzbot+de4025c006ec68ac56fc@syzkaller.appspotmail.com
Fixes: 179d9ba5559a ("netfilter: nf_tables: fix table flag updates")
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
| -rw-r--r-- | net/netfilter/nf_tables_api.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/net/netfilter/nf_tables_api.c b/net/netfilter/nf_tables_api.c index f586e8b3c6cf..73b0a6925304 100644 --- a/net/netfilter/nf_tables_api.c +++ b/net/netfilter/nf_tables_api.c @@ -1132,6 +1132,7 @@ static int nf_tables_updtable(struct nft_ctx *ctx) return 0; err_register_hooks: + ctx->table->flags |= NFT_TABLE_F_DORMANT; nft_trans_destroy(trans); return ret; } |