linux-hardening - [PATCH] tracing: probes: Replace strcpy() with memcpy() in __trace_probe_log

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Message-ID: <20250820214717.778243-3-thorsten.blum@linux.dev>
Date: Wed, 20 Aug 2025 23:47:18 +0200
From: Thorsten Blum <thorsten.blum@...ux.dev>
To: Steven Rostedt <rostedt@...dmis.org>,
	Masami Hiramatsu <mhiramat@...nel.org>,
	Mathieu Desnoyers <mathieu.desnoyers@...icios.com>
Cc: linux-hardening@...r.kernel.org,
	Thorsten Blum <thorsten.blum@...ux.dev>,
	linux-kernel@...r.kernel.org,
	linux-trace-kernel@...r.kernel.org
Subject: [PATCH] tracing: probes: Replace strcpy() with memcpy() in __trace_probe_log_err()

strcpy() is deprecated; use memcpy() instead.

Link: https://github.com/KSPP/linux/issues/88
Signed-off-by: Thorsten Blum <thorsten.blum@...ux.dev>
---
 kernel/trace/trace_probe.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/trace/trace_probe.c b/kernel/trace/trace_probe.c
index 5cbdc423afeb..d3ba5869d32c 100644
--- a/kernel/trace/trace_probe.c
+++ b/kernel/trace/trace_probe.c
@@ -214,7 +214,7 @@ void __trace_probe_log_err(int offset, int err_type)
 	p = command;
 	for (i = 0; i < trace_probe_log.argc; i++) {
 		len = strlen(trace_probe_log.argv[i]);
-		strcpy(p, trace_probe_log.argv[i]);
+		memcpy(p, trace_probe_log.argv[i], len);
 		p[len] = ' ';
 		p += len + 1;
 	}
-- 
2.50.1