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Diffstat (limited to 'tools/perf/util/config.c')
-rw-r--r--tools/perf/util/config.c27
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;