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[169.232.97.87]) by smtp.googlemail.com with ESMTPSA id d9443c01a7336-211057d3b18sm72468125ad.243.2024.11.04.23.20.13 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 04 Nov 2024 23:20:14 -0800 (PST) From: Daniel Yang To: Steven Rostedt , Masami Hiramatsu , Mathieu Desnoyers , linux-kernel@vger.kernel.org (open list:TRACING), linux-trace-kernel@vger.kernel.org (open list:TRACING) Cc: Daniel Yang Subject: [PATCH] set_cmdline: replace fragile/deprecated strncpy with strscpy Date: Mon, 4 Nov 2024 23:20:07 -0800 Message-Id: <20241105072007.426782-1-danielyangkang@gmail.com> X-Mailer: git-send-email 2.39.2 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Kernel docs identify strncpy as being fragile and ambiguous. Replaced strncpy with strscpy so dest str is null terminated and not padded. Signed-off-by: Daniel Yang --- kernel/trace/trace_sched_switch.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/kernel/trace/trace_sched_switch.c b/kernel/trace/trace_sched_s= witch.c index 8a407adb0..573b5d8e8 100644 --- a/kernel/trace/trace_sched_switch.c +++ b/kernel/trace/trace_sched_switch.c @@ -187,7 +187,7 @@ static inline char *get_saved_cmdlines(int idx) =20 static inline void set_cmdline(int idx, const char *cmdline) { - strncpy(get_saved_cmdlines(idx), cmdline, TASK_COMM_LEN); + strscpy(get_saved_cmdlines(idx), cmdline, TASK_COMM_LEN); } =20 static void free_saved_cmdlines_buffer(struct saved_cmdlines_buffer *s) --=20 2.39.2