This is a note to let you know that I've just added the patch titled
RDMA/cm: Fix memory leak in ib_cm_insert_listen
to the 5.15-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-cm-fix-memory-leak-in-ib_cm_insert_listen.patch
and it can be found in the queue-5.15 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 2990f223ffa7bb25422956b9f79f9176a5b38346 Mon Sep 17 00:00:00 2001
From: Miaoqian Lin <linmq006@xxxxxxxxx>
Date: Tue, 21 Jun 2022 09:25:44 +0400
Subject: RDMA/cm: Fix memory leak in ib_cm_insert_listen
From: Miaoqian Lin <linmq006@xxxxxxxxx>
commit 2990f223ffa7bb25422956b9f79f9176a5b38346 upstream.
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@xxxxxxxxx
Signed-off-by: Miaoqian Lin <linmq006@xxxxxxxxx>
Signed-off-by: Jason Gunthorpe <jgg@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/infiniband/core/cm.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
--- a/drivers/infiniband/core/cm.c
+++ b/drivers/infiniband/core/cm.c
@@ -1252,8 +1252,10 @@ struct ib_cm_id *ib_cm_insert_listen(str
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);
Patches currently in stable-queue which might be from linmq006@xxxxxxxxx are
queue-5.15/rdma-cm-fix-memory-leak-in-ib_cm_insert_listen.patch
