[PATCH v4] tracing: Replace deprecated strncpy() with strscpy() for stack_trace_filter_buf
From: Devaansh Kumar <hidden>
Date: 2025-04-04 18:58:23
Also in:
linux-kernel-mentees, lkml
Subsystem:
the rest, tracing · Maintainers:
Linus Torvalds, Steven Rostedt, Masami Hiramatsu
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 <redacted> --- 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 5a48dba912ea..617e59a234da 100644
--- a/kernel/trace/trace_stack.c
+++ b/kernel/trace/trace_stack.c@@ -544,7 +544,7 @@ static __init int enable_stacktrace(char *str) int len; if ((len = str_has_prefix(str, "_filter="))) - strncpy(stack_trace_filter_buf, str + len, COMMAND_LINE_SIZE); + strscpy(stack_trace_filter_buf, str + len, sizeof(stack_trace_filter_buf)); stack_tracer_enabled = 1; return 1;
--
2.47.1