diff options
| -rw-r--r-- | tools/perf/util/config.c | 27 |
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; |