[PATCH AUTOSEL 6.11 049/244] netfilter: nf_tables: don't initialize registers in nft_do_chain()

Sasha Levin
2024-09-25T11:38:24Z

From: Florian Westphal <fw@strlen.de>

[ Upstream commit c88baabf16d1ef74ab8832de9761226406af5507 ]

revert commit 4c905f6740a3 ("netfilter: nf_tables: initialize registers in
nft_do_chain()").

Previous patch makes sure that loads from uninitialized registers are
detected from the control plane. in this case rule blob auto-zeroes
registers. Thus the explicit zeroing is not needed anymore.

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>
---
net/netfilter/nf_tables_core.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/netfilter/nf_tables_core.c b/net/netfilter/nf_tables_core.c
index a48d5f0e2f3e1..75598520b0fa0 100644
--- a/net/netfilter/nf_tables_core.c
+++ b/net/netfilter/nf_tables_core.c
@@ -256,7 +256,7 @@ nft_do_chain(struct nft_pktinfo *pkt, void *priv)
const struct net *net = nft_net(pkt);
const struct nft_expr *expr, *last;
const struct nft_rule_dp *rule;
- struct nft_regs regs = {};
+ struct nft_regs regs;
unsigned int stackptr = 0;
struct nft_jumpstack jumpstack[NFT_JUMP_STACK_SIZE];
bool genbit = READ_ONCE(net->nft.gencursor);
--
2.43.0