linux-kernel - [PATCH AUTOSEL 4.19 2/4] net/iucv: fix the allocation size of iucv_path

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Message-ID: <20240229204208.2862333-2-sashal@kernel.org>
Date: Thu, 29 Feb 2024 15:42:02 -0500
From: Sasha Levin <sashal@...nel.org>
To: linux-kernel@...r.kernel.org,
	stable@...r.kernel.org
Cc: Alexander Gordeev <agordeev@...ux.ibm.com>,
	Alexandra Winter <wintera@...ux.ibm.com>,
	"David S . Miller" <davem@...emloft.net>,
	Sasha Levin <sashal@...nel.org>,
	twinkler@...ux.ibm.com,
	edumazet@...gle.com,
	kuba@...nel.org,
	pabeni@...hat.com,
	linux-s390@...r.kernel.org,
	netdev@...r.kernel.org
Subject: [PATCH AUTOSEL 4.19 2/4] net/iucv: fix the allocation size of iucv_path_table array

From: Alexander Gordeev <agordeev@...ux.ibm.com>

[ Upstream commit b4ea9b6a18ebf7f9f3a7a60f82e925186978cfcf ]

iucv_path_table is a dynamically allocated array of pointers to
struct iucv_path items. Yet, its size is calculated as if it was
an array of struct iucv_path items.

Signed-off-by: Alexander Gordeev <agordeev@...ux.ibm.com>
Reviewed-by: Alexandra Winter <wintera@...ux.ibm.com>
Signed-off-by: David S. Miller <davem@...emloft.net>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 net/iucv/iucv.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/net/iucv/iucv.c b/net/iucv/iucv.c
index aacaa5119b456..da4cee91fc63d 100644
--- a/net/iucv/iucv.c
+++ b/net/iucv/iucv.c
@@ -192,7 +192,7 @@ static char iucv_error_pathid[16] = "INVALID PATHID";
 static LIST_HEAD(iucv_handler_list);
 
 /*
- * iucv_path_table: an array of iucv_path structures.
+ * iucv_path_table: array of pointers to iucv_path structures.
  */
 static struct iucv_path **iucv_path_table;
 static unsigned long iucv_max_pathid;
@@ -603,7 +603,7 @@ static int iucv_enable(void)
 
 	get_online_cpus();
 	rc = -ENOMEM;
-	alloc_size = iucv_max_pathid * sizeof(struct iucv_path);
+	alloc_size = iucv_max_pathid * sizeof(*iucv_path_table);
 	iucv_path_table = kzalloc(alloc_size, GFP_KERNEL);
 	if (!iucv_path_table)
 		goto out;
-- 
2.43.0