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

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Date: Wed, 14 Feb 2024 17:32:40 +0100
From: Alexander Gordeev <agordeev@...ux.ibm.com>
To: Alexandra Winter <wintera@...ux.ibm.com>,
        Thorsten Winkler <twinkler@...ux.ibm.com>
Cc: linux-s390@...r.kernel.org, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH] net/iucv: fix the allocation size of iucv_path_table array

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>
---
 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 9e62783e6acb..5b56ae6612dd 100644
--- a/net/iucv/iucv.c
+++ b/net/iucv/iucv.c
@@ -156,7 +156,7 @@ 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;
@@ -545,7 +545,7 @@ static int iucv_enable(void)
 
 	cpus_read_lock();
 	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;
-- 
2.40.1