This is a note to let you know that I've just added the patch titled
RDMA/irdma: Fix VLAN connection with wildcard address
to the 5.18-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
rdma-irdma-fix-vlan-connection-with-wildcard-address.patch
and it can be found in the queue-5.18 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit fe7b456b2d4e1a789543b70ce48d1539b71663ab
Author: Mustafa Ismail <mustafa.ismail@xxxxxxxxx>
Date: Tue Jul 5 18:08:14 2022 -0500
RDMA/irdma: Fix VLAN connection with wildcard address
[ Upstream commit 82ab2b52654c43ba24a3f6603fec40874cc5a7e5 ]
When an application listens on a wildcard address, and there are VLAN and
non-VLAN IP addresses, iWARP connection establishemnt can fail if the listen
node VLAN ID does not match.
Fix this by checking the vlan_id only if not a wildcard listen node.
Fixes: 146b9756f14c ("RDMA/irdma: Add connection manager")
Link: https://lore.kernel.org/r/20220705230815.265-7-shiraz.saleem@xxxxxxxxx
Signed-off-by: Mustafa Ismail <mustafa.ismail@xxxxxxxxx>
Signed-off-by: Shiraz Saleem <shiraz.saleem@xxxxxxxxx>
Signed-off-by: Leon Romanovsky <leon@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/infiniband/hw/irdma/cm.c b/drivers/infiniband/hw/irdma/cm.c
index 646fa8677490..7b086fe63a24 100644
--- a/drivers/infiniband/hw/irdma/cm.c
+++ b/drivers/infiniband/hw/irdma/cm.c
@@ -1477,12 +1477,13 @@ irdma_find_listener(struct irdma_cm_core *cm_core, u32 *dst_addr, u16 dst_port,
list_for_each_entry (listen_node, &cm_core->listen_list, list) {
memcpy(listen_addr, listen_node->loc_addr, sizeof(listen_addr));
listen_port = listen_node->loc_port;
+ if (listen_port != dst_port ||
+ !(listener_state & listen_node->listener_state))
+ continue;
/* compare node pair, return node handle if a match */
- if ((!memcmp(listen_addr, dst_addr, sizeof(listen_addr)) ||
- !memcmp(listen_addr, ip_zero, sizeof(listen_addr))) &&
- listen_port == dst_port &&
- vlan_id == listen_node->vlan_id &&
- (listener_state & listen_node->listener_state)) {
+ if (!memcmp(listen_addr, ip_zero, sizeof(listen_addr)) ||
+ (!memcmp(listen_addr, dst_addr, sizeof(listen_addr)) &&
+ vlan_id == listen_node->vlan_id)) {
refcount_inc(&listen_node->refcnt);
spin_unlock_irqrestore(&cm_core->listen_list_lock,
flags);
