From 7f1ba356f1b2f334604d6f286c71654e5518d875 Mon Sep 17 00:00:00 2001
From: Giacomo Tesio <giacomo@tesio.it>
Date: Fri, 15 Dec 2017 00:34:19 +0100
Subject: [PATCH] kern: devproc: forbid open(OWRITE) of notes in Broken
 proceses

---
 sys/src/kern/port/devproc.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/sys/src/kern/port/devproc.c b/sys/src/kern/port/devproc.c
index 1a3d6aa..a1be66a 100644
--- a/sys/src/kern/port/devproc.c
+++ b/sys/src/kern/port/devproc.c
@@ -403,6 +403,8 @@ procopen(Chan *c, unsigned long omode)
 	case Qnote:
 		if(p->privatemem)
 			error(Eperm);
+		if(p->state < Ready && omode != OREAD && omode != OSTAT)
+			error(Eperm);
 		break;
 
 	case Qmem: