From 2990f223ffa7bb25422956b9f79f9176a5b38346 Mon Sep 17 00:00:00 2001
From: Miaoqian Lin <linmq006@gmail.com>
Date: Tue, 21 Jun 2022 09:25:44 +0400
Subject: [PATCH 1/1] RDMA/cm: Fix memory leak in ib_cm_insert_listen
Git-commit: 2990f223ffa7bb25422956b9f79f9176a5b38346
Patch-mainline: v5.19
References: git-fixes
cm_alloc_id_priv() allocates resource for the cm_id_priv. When
cm_init_listen() fails it doesn't free it, leading to memory leak.
Add the missing error unwind.
Fixes: 98f67156a80f ("RDMA/cm: Simplify establishing a listen cm_id")
Link: https://lore.kernel.org/r/20220621052546.4821-1-linmq006@gmail.com
Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Acked-by: Nicolas Morey-Chaisemartin <nmoreychaisemartin@suse.com>
---
drivers/infiniband/core/cm.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/infiniband/core/cm.c b/drivers/infiniband/core/cm.c
index 1c107d6d03b9..b985e0d9bc05 100644
--- a/drivers/infiniband/core/cm.c
+++ b/drivers/infiniband/core/cm.c
@@ -1252,8 +1252,10 @@ struct ib_cm_id *ib_cm_insert_listen(struct ib_device *device,
return ERR_CAST(cm_id_priv);
err = cm_init_listen(cm_id_priv, service_id, 0);
- if (err)
+ if (err) {
+ ib_destroy_cm_id(&cm_id_priv->id);
return ERR_PTR(err);
+ }
spin_lock_irq(&cm_id_priv->lock);
listen_id_priv = cm_insert_listen(cm_id_priv, cm_handler);
--
2.38.0.1.gee35aeee4b76