From: <yang.yang29@zte.com.cn>
To: <rostedt@goodmis.org>
Cc: <mhiramat@kernel.org>, <linux-kernel@vger.kernel.org>,
<linux-trace-kernel@vger.kernel.org>, <xu.panda@zte.com.cn>,
<yang.yang29@zte.com.cn>
Subject: [PATCH linux-next] tracing: use strscpy() to instead of strncpy()
Date: Mon, 9 Jan 2023 19:39:21 +0800 (CST) [thread overview]
Message-ID: <202301091939219689840@zte.com.cn> (raw)
From: Xu Panda <xu.panda@zte.com.cn>
The implementation of strscpy() is more robust and safer.
That's now the recommended way to copy NUL-terminated strings.
Signed-off-by: Xu Panda <xu.panda@zte.com.cn>
Signed-off-by: Yang Yang <yang.yang29@zte.com.cn>
---
kernel/trace/trace_events_synth.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/kernel/trace/trace_events_synth.c b/kernel/trace/trace_events_synth.c
index 67592eed0be8..cd636edd045e 100644
--- a/kernel/trace/trace_events_synth.c
+++ b/kernel/trace/trace_events_synth.c
@@ -195,8 +195,7 @@ static int synth_field_string_size(char *type)
if (len == 0)
return 0; /* variable-length string */
- strncpy(buf, start, len);
- buf[len] = '\0';
+ strscpy(buf, start, len + 1);
err = kstrtouint(buf, 0, &size);
if (err)
--
2.15.2
next reply other threads:[~2023-01-09 11:40 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-01-09 11:39 yang.yang29 [this message]
2023-01-10 0:03 ` [PATCH linux-next] tracing: use strscpy() to instead of strncpy() Masami Hiramatsu
2023-01-24 17:17 ` Steven Rostedt
2024-10-01 1:33 ` Justin Stitt
2025-02-14 22:27 ` Thorsten Blum
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