1 files changed, 1 insertions, 1 deletions

diff --git a/security/yama/yama_lsm.c b/security/yama/yama_lsm.c
index 9ca43c1ea63..01d3b44b62c 100644
--- a/security/yama/yama_lsm.c
+++ b/security/yama/yama_lsm.c
@@ -143,7 +143,7 @@ int yama_task_prctl(int option, unsigned long arg2, unsigned long arg3,
                 if (arg2 == 0) {
                         yama_ptracer_del(NULL, myself);
                         rc = 0;
-                } else if (arg2 == PR_SET_PTRACER_ANY) {
+                } else if (arg2 == PR_SET_PTRACER_ANY || (int)arg2 == -1) {
                         rc = yama_ptracer_add(NULL, myself);
                 } else {
                         struct task_struct *tracer;