ucm: fix use after free in if_eval_regex_match()

Signed-off-by: Jaroslav Kysela <perex@perex.cz>

diff --git a/src/ucm/ucm_cond.c b/src/ucm/ucm_cond.c
index 59d1a155b5d554bb55ef5e5296427fb04dcf9f61..adb0ecd9481c8dda124d8bf6b92261240ecc82a6 100644 (file)
--- a/src/ucm/ucm_cond.c
+++ b/src/ucm/ucm_cond.c
@@ -160,11 +160,12 @@ static int if_eval_regex_match(snd_use_case_mgr_t *uc_mgr, snd_config_t *eval)
        if (err < 0)
                return err;
        err = regcomp(&re, s, options);
-       free(s);
        if (err) {
                uc_error("Regex '%s' compilation failed (code %d)", s, err);
+               free(s);
                return -EINVAL;
        }
+       free(s);
 
        err = uc_mgr_get_substituted_value(uc_mgr, &s, string);
        if (err < 0) {