1 files changed, 23 insertions, 4 deletions

diff --git a/tools/perf/util/config.c b/tools/perf/util/config.c
index 6c86eca8b1b7..fe02903f7d0f 100644
--- a/tools/perf/util/config.c
+++ b/tools/perf/util/config.c
@@ -413,13 +413,32 @@ int perf_config(config_fn_t fn, void *data)
         home = getenv("HOME");
         if (perf_config_global() && home) {
                 char *user_config = strdup(mkpath("%s/.perfconfig", home));
-                if (!access(user_config, R_OK)) {
-                        ret += perf_config_from_file(fn, user_config, data);
-                        found += 1;
+                struct stat st;
+
+                if (user_config == NULL) {
+                        warning("Not enough memory to process %s/.perfconfig, "
+                                "ignoring it.", home);
+                        goto out;
+                }
+
+                if (stat(user_config, &st) < 0)
+                        goto out_free;
+
+                if (st.st_uid && (st.st_uid != geteuid())) {
+                        warning("File %s not owned by current user or root, "
+                                "ignoring it.", user_config);
+                        goto out_free;
                 }
+
+                if (!st.st_size)
+                        goto out_free;
+
+                ret += perf_config_from_file(fn, user_config, data);
+                found += 1;
+out_free:
                 free(user_config);
         }
-
+out:
         if (found == 0)
                 return -1;
         return ret;