linux-kernel - [PATCH] acpi: acpica: dbfileio: Use strlcpy to Copy a C-string into a sized buffer

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Message-Id: <1495581953-5523-1-git-send-email-karim.eshapa@gmail.com>
Date:   Wed, 24 May 2017 01:25:53 +0200
From:   Karim Eshapa <karim.eshapa@...il.com>
To:     robert.moore@...el.com
Cc:     lv.zheng@...el.com, rafael.j.wysocki@...el.com, lenb@...nel.org,
        linux-acpi@...r.kernel.org, devel@...ica.org,
        linux-kernel@...r.kernel.org, Karim Eshapa <karim.eshapa@...il.com>
Subject: [PATCH] acpi: acpica: dbfileio: Use strlcpy to Copy a C-string into a sized buffer

Use strlcpy with sized buffer instead of strncpy to
avoid non NUL-terminated source strings problems.

Signed-off-by: Karim Eshapa <karim.eshapa@...il.com>
---
 drivers/acpi/acpica/dbfileio.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/acpi/acpica/dbfileio.c b/drivers/acpi/acpica/dbfileio.c
index 4d81ea2..f0f22f1 100644
--- a/drivers/acpi/acpica/dbfileio.c
+++ b/drivers/acpi/acpica/dbfileio.c
@@ -99,7 +99,7 @@ void acpi_db_open_debug_file(char *name)
 	}
 
 	acpi_os_printf("Debug output file %s opened\n", name);
-	strncpy(acpi_gbl_db_debug_filename, name,
+	strlcpy(acpi_gbl_db_debug_filename, name,
 		sizeof(acpi_gbl_db_debug_filename));
 	acpi_gbl_db_output_to_file = TRUE;
 }
-- 
2.7.4