mirror of
git://git.savannah.gnu.org/guix.git
synced 2023-12-14 03:33:07 +01:00
c5327efb97
* gnu/packages/patches/libvpx-use-after-free-in-postproc.patch: New file. * gnu/local.mk (dist_patch_DATA): Add it. * gnu/packages/video.scm (libvpx)[source]: Add patch.
34 lines
1.2 KiB
Diff
34 lines
1.2 KiB
Diff
From 52add5896661d186dec284ed646a4b33b607d2c7 Mon Sep 17 00:00:00 2001
|
|
From: Jerome Jiang <jianj@google.com>
|
|
Date: Wed, 23 May 2018 15:43:00 -0700
|
|
Subject: [PATCH] VP8: Fix use-after-free in postproc.
|
|
|
|
The pointer in vp8 postproc refers to show_frame_mi which is only
|
|
updated on show frame. However, when there is a no-show frame which also
|
|
changes the size (thus new frame buffers allocated), show_frame_mi is
|
|
not updated with new frame buffer memory.
|
|
|
|
Change the pointer in postproc to mi which is always updated.
|
|
|
|
Bug: 842265
|
|
Change-Id: I33874f2112b39f74562cba528432b5f239e6a7bd
|
|
---
|
|
vp8/common/postproc.c | 2 +-
|
|
1 file changed, 1 insertion(+), 1 deletion(-)
|
|
|
|
diff --git a/vp8/common/postproc.c b/vp8/common/postproc.c
|
|
index d67ee8a57..8c292d616 100644
|
|
--- a/vp8/common/postproc.c
|
|
+++ b/vp8/common/postproc.c
|
|
@@ -65,7 +65,7 @@ void vp8_deblock(VP8_COMMON *cm, YV12_BUFFER_CONFIG *source,
|
|
double level = 6.0e-05 * q * q * q - .0067 * q * q + .306 * q + .0065;
|
|
int ppl = (int)(level + .5);
|
|
|
|
- const MODE_INFO *mode_info_context = cm->show_frame_mi;
|
|
+ const MODE_INFO *mode_info_context = cm->mi;
|
|
int mbr, mbc;
|
|
|
|
/* The pixel thresholds are adjusted according to if or not the macroblock
|
|
--
|
|
2.19.0
|
|
|