[PATCH v9 nf 12/15] netfilter: nft_flow_offload: No ingress_vlan forward info for dsa user port
From: Eric Woudstra <hidden>
Date: 2025-03-05 10:30:19
Also in:
bridge, linux-arm-kernel, linux-hardening, lkml, netdev, netfilter-devel
Subsystem:
netfilter, networking [general], the rest · Maintainers:
Pablo Neira Ayuso, Florian Westphal, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
The bitfield info->ingress_vlans and corresponding vlan encap are used for a switchdev user port. However, they should not be set for a dsa user port. Reviewed-by: Nikolay Aleksandrov <razor@blackwall.org> Signed-off-by: Eric Woudstra <redacted> --- net/netfilter/nft_flow_offload.c | 5 +++++ 1 file changed, 5 insertions(+)
diff --git a/net/netfilter/nft_flow_offload.c b/net/netfilter/nft_flow_offload.c
index b9e6d9e6df66..c95fad495460 100644
--- a/net/netfilter/nft_flow_offload.c
+++ b/net/netfilter/nft_flow_offload.c@@ -116,6 +116,11 @@ static void nft_dev_path_info(const struct net_device_path_stack *stack, break; if (path->type == DEV_PATH_DSA) { i = stack->num_paths; + if (!info->num_encaps || + !(info->ingress_vlans & BIT(info->num_encaps - 1))) + break; + info->num_encaps--; + info->ingress_vlans &= ~BIT(info->num_encaps - 1); break; } if (path->type == DEV_PATH_MTK_WDMA) {
--
2.47.1