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 <[email protected]> --- kernel/trace/trace_stack.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/kernel/trace/trace_stack.c b/kernel/trace/trace_stack.c index 5a48dba912ea..982b1c88fce2 100644 --- a/kernel/trace/trace_stack.c +++ b/kernel/trace/trace_stack.c @@ -3,6 +3,7 @@ * Copyright (C) 2008 Steven Rostedt <[email protected]> * */ +#include <linux/string.h> #include <linux/sched/task_stack.h> #include <linux/stacktrace.h> #include <linux/security.h> @@ -543,8 +544,10 @@ 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); + len = str_has_prefix(str, "_filter="); + + if (len) + strscpy(stack_trace_filter_buf, str + len, sizeof(stack_trace_filter_buf)); stack_tracer_enabled = 1; return 1; -- 2.47.1
