1 files changed, 5 insertions, 0 deletions

diff --git a/arch/um/kernel/ptrace.c b/arch/um/kernel/ptrace.c
index 15e8b7c4de1..8e3d69e4fcb 100644
--- a/arch/um/kernel/ptrace.c
+++ b/arch/um/kernel/ptrace.c
@@ -64,6 +64,11 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
                 ret = poke_user(child, addr, data);
                 break;
 
+        case PTRACE_SYSEMU:
+        case PTRACE_SYSEMU_SINGLESTEP:
+                ret = -EIO;
+                break;
+
         /* continue and stop at next (return from) syscall */
         case PTRACE_SYSCALL:
         /* restart after signal. */