From: "Steven Rostedt (VMware)" <rostedt@xxxxxxxxxxx> A regex is used to match functions in update_filter() using the regcomp() functionality. But regcomp() needs to release its resources via regfree() which is lacking in this function. Fixes: 2df4a7ea ("libtracefs: Add checking of available_filter_functions to tracefs_function_filter()") Signed-off-by: Steven Rostedt (VMware) <rostedt@xxxxxxxxxxx> --- src/tracefs-tools.c | 1 + 1 file changed, 1 insertion(+) diff --git a/src/tracefs-tools.c b/src/tracefs-tools.c index 6ef17f6..993fb3c 100644 --- a/src/tracefs-tools.c +++ b/src/tracefs-tools.c @@ -816,6 +816,7 @@ static int update_filter(const char *filter_path, int *fd, } out_free: + regfree(&func_filter.re); free_func_list(func_list); out: pthread_mutex_unlock(lock); -- 2.29.2