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([37.131.106.85]) by smtp.gmail.com with ESMTPSA id 2adb3069b0e04-54ea94bf0cesm2348836e87.57.2025.05.07.06.38.46 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 07 May 2025 06:38:49 -0700 (PDT) From: Devaansh Kumar To: rostedt@goodmis.org, mhiramat@kernel.org, mathieu.desnoyers@efficios.com Cc: Devaansh Kumar , linux-trace-kernel@vger.kernel.org, linux-kernel@vger.kernel.org, skhan@linuxfoundation.org, linux-kernel-mentees@lists.linuxfoundation.org Subject: [RESEND PATCH v5] tracing: Replace deprecated strncpy() with strscpy() for stack_trace_filter_buf Date: Wed, 7 May 2025 19:08:36 +0530 Message-ID: <20250507133837.19640-1-devaanshk840@gmail.com> X-Mailer: git-send-email 2.49.0 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" strncpy() is deprecated for NUL-terminated destination buffers and must be replaced by strscpy(). See issue: https://github.com/KSPP/linux/issues/90 Signed-off-by: Devaansh Kumar --- Changes since v4: - Removed unnecessary sizeof(stack_trace_filter_buf) in strscpy Changes since v3: - Refactored code to compare length with str_has_prefix in a single line Changes since v2; - Removed unnecessary string.h header file inclusion Changes since v1: - Moved from memcpy() to strscpy() kernel/trace/trace_stack.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/kernel/trace/trace_stack.c b/kernel/trace/trace_stack.c index 14c6f272c4d8..4c349db381cb 100644 --- a/kernel/trace/trace_stack.c +++ b/kernel/trace/trace_stack.c @@ -542,7 +542,7 @@ static __init int enable_stacktrace(char *str) int len; =20 if ((len =3D str_has_prefix(str, "_filter=3D"))) - strncpy(stack_trace_filter_buf, str + len, COMMAND_LINE_SIZE); + strscpy(stack_trace_filter_buf, str + len); =20 stack_tracer_enabled =3D 1; return 1; --=20 2.49.0