lists.openwall.net   lists  /  announce  owl-users  owl-dev  john-users  john-dev  passwdqc-users  yescrypt  popa3d-users  /  oss-security  kernel-hardening  musl  sabotage  tlsify  passwords  /  crypt-dev  xvendor  /  Bugtraq  Full-Disclosure  linux-kernel  linux-netdev  linux-ext4  linux-hardening  linux-cve-announce  PHC 
Open Source and information security mailing list archives
 
Hash Suite: Windows password security audit tool. GUI, reports in PDF.
[<prev] [next>] [thread-next>] [day] [month] [year] [list]
Message-Id: <20241105072007.426782-1-danielyangkang@gmail.com>
Date: Mon,  4 Nov 2024 23:20:07 -0800
From: Daniel Yang <danielyangkang@...il.com>
To: Steven Rostedt <rostedt@...dmis.org>,
	Masami Hiramatsu <mhiramat@...nel.org>,
	Mathieu Desnoyers <mathieu.desnoyers@...icios.com>,
	linux-kernel@...r.kernel.org (open list:TRACING),
	linux-trace-kernel@...r.kernel.org (open list:TRACING)
Cc: Daniel Yang <danielyangkang@...il.com>
Subject: [PATCH] set_cmdline: replace fragile/deprecated strncpy with strscpy

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 <danielyangkang@...il.com>
---
 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_switch.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)
 
 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);
 }
 
 static void free_saved_cmdlines_buffer(struct saved_cmdlines_buffer *s)
-- 
2.39.2


Powered by blists - more mailing lists

Powered by Openwall GNU/*/Linux Powered by OpenVZ