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authorLinus Torvalds <torvalds@linux-foundation.org>2026-03-05 11:00:46 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2026-03-05 11:00:46 -0800
commitabacaf559950eec0d99d37ff6b92049409af5943 (patch)
tree35cb46179fc961ff60205f261c97213bea3321c0 /net/bridge
parent18ecff396c9edb9add34f612d9fb99bb34833cc0 (diff)
parentcf440e5b40649d1ffbc6c4e33fef3223c7482897 (diff)
Merge tag 'net-7.0-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Jakub Kicinski: "Including fixes from CAN, netfilter and wireless. Current release - new code bugs: - sched: cake: fixup cake_mq rate adjustment for diffserv config - wifi: fix missing ieee80211_eml_params member initialization Previous releases - regressions: - tcp: give up on stronger sk_rcvbuf checks (for now) Previous releases - always broken: - net: fix rcu_tasks stall in threaded busypoll - sched: - fq: clear q->band_pkt_count[] in fq_reset() - only allow act_ct to bind to clsact/ingress qdiscs and shared blocks - bridge: check relevant per-VLAN options in VLAN range grouping - xsk: fix fragment node deletion to prevent buffer leak Misc: - spring cleanup of inactive maintainers" * tag 'net-7.0-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (138 commits) xdp: produce a warning when calculated tailroom is negative net: enetc: use truesize as XDP RxQ info frag_size libeth, idpf: use truesize as XDP RxQ info frag_size i40e: use xdp.frame_sz as XDP RxQ info frag_size i40e: fix registering XDP RxQ info ice: change XDP RxQ frag_size from DMA write length to xdp.frame_sz ice: fix rxq info registering in mbuf packets xsk: introduce helper to determine rxq->frag_size xdp: use modulo operation to calculate XDP frag tailroom selftests/tc-testing: Add tests exercising act_ife metalist replace behaviour net/sched: act_ife: Fix metalist update behavior selftests: net: add test for IPv4 route with loopback IPv6 nexthop net: ipv6: fix panic when IPv4 route references loopback IPv6 nexthop net: vxlan: fix nd_tbl NULL dereference when IPv6 is disabled net: bridge: fix nd_tbl NULL dereference when IPv6 is disabled MAINTAINERS: remove Thomas Falcon from IBM ibmvnic MAINTAINERS: remove Claudiu Manoil and Alexandre Belloni from Ocelot switch MAINTAINERS: replace Taras Chornyi with Elad Nachman for Marvell Prestera MAINTAINERS: remove Jonathan Lemon from OpenCompute PTP MAINTAINERS: replace Clark Wang with Frank Li for Freescale FEC ...
Diffstat (limited to 'net/bridge')
-rw-r--r--net/bridge/br_device.c2
-rw-r--r--net/bridge/br_input.c2
-rw-r--r--net/bridge/br_private.h10
-rw-r--r--net/bridge/br_vlan_options.c26
4 files changed, 35 insertions, 5 deletions
diff --git a/net/bridge/br_device.c b/net/bridge/br_device.c
index ee01122f466f..f7502e62dd35 100644
--- a/net/bridge/br_device.c
+++ b/net/bridge/br_device.c
@@ -74,7 +74,7 @@ netdev_tx_t br_dev_xmit(struct sk_buff *skb, struct net_device *dev)
eth_hdr(skb)->h_proto == htons(ETH_P_RARP)) &&
br_opt_get(br, BROPT_NEIGH_SUPPRESS_ENABLED)) {
br_do_proxy_suppress_arp(skb, br, vid, NULL);
- } else if (IS_ENABLED(CONFIG_IPV6) &&
+ } else if (ipv6_mod_enabled() &&
skb->protocol == htons(ETH_P_IPV6) &&
br_opt_get(br, BROPT_NEIGH_SUPPRESS_ENABLED) &&
pskb_may_pull(skb, sizeof(struct ipv6hdr) +
diff --git a/net/bridge/br_input.c b/net/bridge/br_input.c
index 1405f1061a54..2cbae0f9ae1f 100644
--- a/net/bridge/br_input.c
+++ b/net/bridge/br_input.c
@@ -170,7 +170,7 @@ int br_handle_frame_finish(struct net *net, struct sock *sk, struct sk_buff *skb
(skb->protocol == htons(ETH_P_ARP) ||
skb->protocol == htons(ETH_P_RARP))) {
br_do_proxy_suppress_arp(skb, br, vid, p);
- } else if (IS_ENABLED(CONFIG_IPV6) &&
+ } else if (ipv6_mod_enabled() &&
skb->protocol == htons(ETH_P_IPV6) &&
br_opt_get(br, BROPT_NEIGH_SUPPRESS_ENABLED) &&
pskb_may_pull(skb, sizeof(struct ipv6hdr) +
diff --git a/net/bridge/br_private.h b/net/bridge/br_private.h
index b9b2981c4841..9b55d38ea9ed 100644
--- a/net/bridge/br_private.h
+++ b/net/bridge/br_private.h
@@ -1345,6 +1345,16 @@ br_multicast_ctx_options_equal(const struct net_bridge_mcast *brmctx1,
}
static inline bool
+br_multicast_port_ctx_options_equal(const struct net_bridge_mcast_port *pmctx1,
+ const struct net_bridge_mcast_port *pmctx2)
+{
+ return br_multicast_ngroups_get(pmctx1) ==
+ br_multicast_ngroups_get(pmctx2) &&
+ br_multicast_ngroups_get_max(pmctx1) ==
+ br_multicast_ngroups_get_max(pmctx2);
+}
+
+static inline bool
br_multicast_ctx_matches_vlan_snooping(const struct net_bridge_mcast *brmctx)
{
bool vlan_snooping_enabled;
diff --git a/net/bridge/br_vlan_options.c b/net/bridge/br_vlan_options.c
index 8fa89b04ee94..5514e1fc8d1f 100644
--- a/net/bridge/br_vlan_options.c
+++ b/net/bridge/br_vlan_options.c
@@ -43,9 +43,29 @@ bool br_vlan_opts_eq_range(const struct net_bridge_vlan *v_curr,
u8 range_mc_rtr = br_vlan_multicast_router(range_end);
u8 curr_mc_rtr = br_vlan_multicast_router(v_curr);
- return v_curr->state == range_end->state &&
- __vlan_tun_can_enter_range(v_curr, range_end) &&
- curr_mc_rtr == range_mc_rtr;
+ if (v_curr->state != range_end->state)
+ return false;
+
+ if (!__vlan_tun_can_enter_range(v_curr, range_end))
+ return false;
+
+ if (curr_mc_rtr != range_mc_rtr)
+ return false;
+
+ /* Check user-visible priv_flags that affect output */
+ if ((v_curr->priv_flags ^ range_end->priv_flags) &
+ (BR_VLFLAG_NEIGH_SUPPRESS_ENABLED | BR_VLFLAG_MCAST_ENABLED))
+ return false;
+
+#ifdef CONFIG_BRIDGE_IGMP_SNOOPING
+ if (!br_vlan_is_master(v_curr) &&
+ !br_multicast_port_ctx_vlan_disabled(&v_curr->port_mcast_ctx) &&
+ !br_multicast_port_ctx_options_equal(&v_curr->port_mcast_ctx,
+ &range_end->port_mcast_ctx))
+ return false;
+#endif
+
+ return true;
}
bool br_vlan_opts_fill(struct sk_buff *skb, const struct net_bridge_vlan *v,