linux-kernel - [PATCH] kallsyms: use kmalloc

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Message-ID: <20250922113412.3075935-1-chandna.linuxkernel@gmail.com>
Date: Mon, 22 Sep 2025 17:04:12 +0530
From: Sahil Chandna <chandna.linuxkernel@...il.com>
To: frederic@...nel.org,
	linux-kernel@...r.kernel.org
Cc: chandna.linuxkernel@...il.com
Subject: [PATCH] kallsyms: use kmalloc_array() instead of kmalloc()

Replace kmalloc(sizeof(*stat) * 2, GFP_KERNEL) with
kmalloc_array(2, sizeof(*stat), GFP_KERNEL) to prevent potential
overflow, as recommended in Documentation/process/deprecated.rst.
kallsyms: Replace kmalloc with kmalloc_array

Signed-off-by: Sahil Chandna <chandna.linuxkernel@...il.com>
---
 kernel/kallsyms_selftest.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/kallsyms_selftest.c b/kernel/kallsyms_selftest.c
index cf4af5728307..2b082a7e24a2 100644
--- a/kernel/kallsyms_selftest.c
+++ b/kernel/kallsyms_selftest.c
@@ -264,7 +264,7 @@ static int test_kallsyms_basic_function(void)
 	char namebuf[KSYM_NAME_LEN];
 	struct test_stat *stat, *stat2;
 
-	stat = kmalloc(sizeof(*stat) * 2, GFP_KERNEL);
+	stat = kmalloc_array(2, sizeof(*stat), GFP_KERNEL);
 	if (!stat)
 		return -ENOMEM;
 	stat2 = stat + 1;
-- 
2.51.0