The stack object “info” has a total size of 128 bytes; however,
only 32 bytes are initialized. The remaining uninitialized bytes
are sent to userland via send_signal.
Signed-off-by: Kangjie Lu <k...@gatech.edu>
---
kernel/signal.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/kernel/signal.c b/kernel/signal.c
index f40f0b3..26fdb74 100644
--- a/kernel/signal.c
+++ b/kernel/signal.c
@@ -1689,6 +1689,7 @@ static void do_notify_parent_cldstop(struct task_struct
*tsk,
parent = tsk->real_parent;
}
+ memset(&info, 0, sizeof(info));
info.si_signo = SIGCHLD;
info.si_errno = 0;
/*
--
1.9.1
