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netfilter: nf_tables: fix wrong length for jump/goto verdicts 

NFT_JUMP/GOTO erronously sets length to sizeof(void *).

We then allocate insufficient memory when such element is added to a vmap.

Suggested-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
This commit is contained in:
Florian Westphal 2015-04-14 16:44:14 +02:00 committed by Pablo Neira Ayuso
parent b357a364c5
commit 4c4ed0748f
1 changed files with 1 additions and 2 deletions
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3
net/netfilter/nf_tables_api.c
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@ -4340,7 +4340,6 @@ static int nft_verdict_init(const struct nft_ctx *ctx, struct nft_data *data,
case NFT_CONTINUE:
case NFT_BREAK:
case NFT_RETURN:
desc->len = sizeof(data->verdict);
break;
case NFT_JUMP:
case NFT_GOTO:
@ -4355,10 +4354,10 @@ static int nft_verdict_init(const struct nft_ctx *ctx, struct nft_data *data,
chain->use++;
data->verdict.chain = chain;
desc->len = sizeof(data);
break;
}
desc->len = sizeof(data->verdict);
desc->type = NFT_DATA_VERDICT;
return 0;
}