diff options
Diffstat (limited to 'gnu/packages/patches/libvpx-use-after-free-in-postproc.patch')
| -rw-r--r-- | gnu/packages/patches/libvpx-use-after-free-in-postproc.patch | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/gnu/packages/patches/libvpx-use-after-free-in-postproc.patch b/gnu/packages/patches/libvpx-use-after-free-in-postproc.patch new file mode 100644 index 0000000000..04f2a953b7 --- /dev/null +++ b/gnu/packages/patches/libvpx-use-after-free-in-postproc.patch @@ -0,0 +1,34 @@ +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 + |