1 files changed, 9 insertions, 1 deletions

diff --git a/tools/perf/util/symbol.c b/tools/perf/util/symbol.c
index fe86612afadc..8b63b678e127 100644
--- a/tools/perf/util/symbol.c
+++ b/tools/perf/util/symbol.c
@@ -2875,6 +2875,7 @@ int machines__create_guest_kernel_maps(struct rb_root *machines)
         int i, items = 0;
         char path[PATH_MAX];
         pid_t pid;
+        char *endp;
 
         if (symbol_conf.default_guest_vmlinux_name ||
             symbol_conf.default_guest_modules ||
@@ -2891,7 +2892,14 @@ int machines__create_guest_kernel_maps(struct rb_root *machines)
                                 /* Filter out . and .. */
                                 continue;
                         }
-                        pid = atoi(namelist[i]->d_name);
+                        pid = (pid_t)strtol(namelist[i]->d_name, &endp, 10);
+                        if ((*endp != '\0') ||
+                            (endp == namelist[i]->d_name) ||
+                            (errno == ERANGE)) {
+                                pr_debug("invalid directory (%s). Skipping.\n",
+                                         namelist[i]->d_name);
+                                continue;
+                        }
                         sprintf(path, "%s/%s/proc/kallsyms",
                                 symbol_conf.guestmount,
                                 namelist[i]->d_name);