diff options
| author | Pablo Neira Ayuso <pablo@netfilter.org> | 2022-03-17 12:04:42 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-03-28 08:22:27 +0200 |
| commit | a3cc32863b175168283cb0a5fde08de6a1e27df9 (patch) | |
| tree | b1817f7263cd856a2fc4b5008375bfbea151f1c1 | |
| parent | 6c35f6cd1bbd5bf678107f9f15edccd0a2315764 (diff) | |
netfilter: nf_tables: initialize registers in nft_do_chain()
commit 4c905f6740a365464e91467aa50916555b28213d upstream.
Initialize registers to avoid stack leak into userspace.
Fixes: 96518518cc41 ("netfilter: add nftables")
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | net/netfilter/nf_tables_core.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/net/netfilter/nf_tables_core.c b/net/netfilter/nf_tables_core.c index 32b7896929f3..7d60fa57bf80 100644 --- a/net/netfilter/nf_tables_core.c +++ b/net/netfilter/nf_tables_core.c @@ -150,7 +150,7 @@ nft_do_chain(struct nft_pktinfo *pkt, void *priv) const struct net *net = nft_net(pkt); const struct nft_rule *rule; const struct nft_expr *expr, *last; - struct nft_regs regs; + struct nft_regs regs = {}; unsigned int stackptr = 0; struct nft_jumpstack jumpstack[NFT_JUMP_STACK_SIZE]; int rulenum; |