| From ae1061d948d88667bdf51d47d918c4684d0f67df Mon Sep 17 00:00:00 2001 |
| From: Robin Watts <Robin.Watts@artifex.com> |
| Date: Wed, 16 Feb 2022 15:22:50 +0000 |
| Subject: [PATCH] Bug 704945: Add init_device_procs entry for mem_x_device. |
| |
| When allocating a buffer device, we rely on an init_device_procs |
| being defined for the device we are using as a prototype. Which |
| device we use as a prototype depends upon the number of bits per |
| pixel we are using. For bpp > 64, we use mem_x_device, which does |
| not currently have an init_device_procs defined. |
| |
| This is a fairly hard case to tickle, as very few devices use |
| more than 64 bits per pixel. The DeviceN device is one of the |
| few that does, and then the problem only kicks in if the |
| MaxBitmap figure is high enough (or conversely the resolution is |
| low enough). |
| |
| |
| http://git.ghostscript.com/?p=ghostpdl.git;a=patch;h=ae1061d948d88667bdf51d47d918c4684d0f67df |
| Upstream-Status: Backport |
| CVE: CVE-2022-2085 |
| Signed-off-by: Chee Yang Lee <chee.yang.lee@intel.com> |
| --- |
| base/gdevmx.c | 4 ++-- |
| 1 file changed, 2 insertions(+), 2 deletions(-) |
| |
| diff --git a/base/gdevmx.c b/base/gdevmx.c |
| index 08b0cbcfe..89e9ff774 100644 |
| --- a/base/gdevmx.c |
| +++ b/base/gdevmx.c |
| @@ -1,4 +1,4 @@ |
| -/* Copyright (C) 2001-2021 Artifex Software, Inc. |
| +/* Copyright (C) 2001-2022 Artifex Software, Inc. |
| All Rights Reserved. |
| |
| This software is provided AS-IS with no warranty, either express or |
| @@ -25,4 +25,4 @@ |
| |
| /* The device descriptor. */ |
| const gx_device_memory mem_x_device = |
| - mem_device("imagex", 256, 0, NULL); |
| + mem_device("imagex", 256, 0, mem_initialize_device_procs); |
| -- |
| 2.25.1 |