[PATCH] fix non-leader exec under ptrace
This reverts most of commit 30e0fca6c1d7d26f3f2daa4dd2b12c51dadc778a.
It broke the case of non-leader MT exec when ptraced.
I think the bug it was intended to fix was already addressed by commit
788e05a67c343fa22f2ae1d3ca264e7f15c25eaf.
Signed-off-by: Roland McGrath <roland@redhat.com>
Acked-by: Oleg Nesterov <oleg@tv-sign.ru>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
diff --git a/kernel/ptrace.c b/kernel/ptrace.c
index 0eeb7e6..4e0f0ec 100644
--- a/kernel/ptrace.c
+++ b/kernel/ptrace.c
@@ -56,10 +56,6 @@
signal_wake_up(child, 1);
}
}
- if (child->signal->flags & SIGNAL_GROUP_EXIT) {
- sigaddset(&child->pending.signal, SIGKILL);
- signal_wake_up(child, 1);
- }
spin_unlock(&child->sighand->siglock);
}
@@ -81,7 +77,8 @@
add_parent(child);
}
- ptrace_untrace(child);
+ if (child->state == TASK_TRACED)
+ ptrace_untrace(child);
}
/*