1 files changed, 4 insertions, 3 deletions

diff --git a/kernel/ptrace.c b/kernel/ptrace.c
index 64191fa09b7e..dfcd83ceee3b 100644
--- a/kernel/ptrace.c
+++ b/kernel/ptrace.c
@@ -604,10 +604,11 @@ repeat:
                 ret = security_ptrace_traceme(current->parent);
 
                 /*
-                 * Set the ptrace bit in the process ptrace flags.
-                 * Then link us on our parent's ptraced list.
+                 * Check PF_EXITING to ensure ->real_parent has not passed
+                 * exit_ptrace(). Otherwise we don't report the error but
+                 * pretend ->real_parent untraces us right after return.
                  */
-                if (!ret) {
+                if (!ret && !(current->real_parent->flags & PF_EXITING)) {
                         current->ptrace |= PT_PTRACED;
                         __ptrace_link(current, current->real_parent);
                 }