current/SOURCES/ghostscript-9.20-CVE-2016-7977.patch

From cf046d2f0fa2c6973c6ca8d582a9b185cc4bd280 Mon Sep 17 00:00:00 2001
From: Chris Liddell <chris.liddell@artifex.com>
Date: Mon, 3 Oct 2016 01:46:28 +0100
Subject: [PATCH] Bug 697169: Be rigorous with SAFER permissions

Once we've opened our input file from the command line, enforce the SAFER
rules.
---
 psi/zfile.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/psi/zfile.c b/psi/zfile.c
index b6caea2..2c6c958 100644
--- a/psi/zfile.c
+++ b/psi/zfile.c
@@ -1081,6 +1081,9 @@ lib_file_open(gs_file_path_ptr  lib_path, const gs_memory_t *mem, i_ctx_t *i_ctx
     gs_main_instance *minst = get_minst_from_memory(mem);
     int code;
 
+    if (i_ctx_p && starting_arg_file)
+        i_ctx_p->starting_arg_file = false;
+
     /* when starting arg files (@ files) iodev_default is not yet set */
     if (iodev == 0)
         iodev = (gx_io_device *)gx_io_device_table[0];
-- 
2.9.1

1	From cf046d2f0fa2c6973c6ca8d582a9b185cc4bd280 Mon Sep 17 00:00:00 2001
2	From: Chris Liddell <chris.liddell@artifex.com>
3	Date: Mon, 3 Oct 2016 01:46:28 +0100
4	Subject: [PATCH] Bug 697169: Be rigorous with SAFER permissions
5
6	Once we've opened our input file from the command line, enforce the SAFER
7	rules.
8	---
9	psi/zfile.c \| 3 +++
10	1 file changed, 3 insertions(+)
11
12	diff --git a/psi/zfile.c b/psi/zfile.c
13	index b6caea2..2c6c958 100644
14	--- a/psi/zfile.c
15	+++ b/psi/zfile.c
16	@@ -1081,6 +1081,9 @@ lib_file_open(gs_file_path_ptr lib_path, const gs_memory_t mem, i_ctx_t i_ctx
17	gs_main_instance *minst = get_minst_from_memory(mem);
18	int code;
19
20	+ if (i_ctx_p && starting_arg_file)
21	+ i_ctx_p->starting_arg_file = false;
22	+
23	/* when starting arg files (@ files) iodev_default is not yet set */
24	if (iodev == 0)
25	iodev = (gx_io_device *)gx_io_device_table[0];
26	--
27	2.9.1
28