100 lines
3.6 KiB
Diff
100 lines
3.6 KiB
Diff
From: Tobias Geerinckx-Rice <me@tobias.gr>
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Date: Sun Sep 24 02:00:00 2023 +0200
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Subject: libvpx: Fix CVE-2023-5217.
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These are the changes made to libvpx between Firefox ESR 115.3.0 and
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115.3.1, which claims to fix CVE-2023-5217 and so do we. The report
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itself is not public.
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It consists of the following 2 upstream libvpx commits:
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af6dedd715f4307669366944cca6e0417b290282
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3fbd1dca6a4d2dad332a2110d646e4ffef36d590
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which are not yet part of an upstream commit.
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---
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diff -Naur libvpx.orig/test/encode_api_test.cc libvpx/test/encode_api_test.cc
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--- libvpx.orig/test/encode_api_test.cc 1970-01-01 01:00:01.000000000 +0100
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+++ libvpx/test/encode_api_test.cc 2023-09-29 21:00:03.189620452 +0200
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@@ -304,7 +304,6 @@
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void InitCodec(const vpx_codec_iface_t &iface, int width, int height,
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vpx_codec_ctx_t *enc, vpx_codec_enc_cfg_t *cfg) {
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- ASSERT_EQ(vpx_codec_enc_config_default(&iface, cfg, 0), VPX_CODEC_OK);
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cfg->g_w = width;
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cfg->g_h = height;
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cfg->g_lag_in_frames = 0;
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@@ -342,6 +341,7 @@
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vpx_codec_ctx_t ctx = {};
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} enc;
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+ ASSERT_EQ(vpx_codec_enc_config_default(iface, &cfg, 0), VPX_CODEC_OK);
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EXPECT_NO_FATAL_FAILURE(
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InitCodec(*iface, kWidth, kHeight, &enc.ctx, &cfg));
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if (IsVP9(iface)) {
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@@ -353,6 +353,50 @@
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for (const auto threads : { 1, 4, 8, 6, 2, 1 }) {
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cfg.g_threads = threads;
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+ EXPECT_NO_FATAL_FAILURE(EncodeWithConfig(cfg, &enc.ctx))
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+ << "iteration: " << i << " threads: " << threads;
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+ }
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+ }
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+ }
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+}
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+
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+TEST(EncodeAPI, ConfigResizeChangeThreadCount) {
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+ constexpr int kInitWidth = 1024;
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+ constexpr int kInitHeight = 1024;
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+
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+ for (const auto *iface : kCodecIfaces) {
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+ SCOPED_TRACE(vpx_codec_iface_name(iface));
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+ for (int i = 0; i < (IsVP9(iface) ? 2 : 1); ++i) {
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+ vpx_codec_enc_cfg_t cfg = {};
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+ struct Encoder {
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+ ~Encoder() { EXPECT_EQ(vpx_codec_destroy(&ctx), VPX_CODEC_OK); }
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+ vpx_codec_ctx_t ctx = {};
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+ } enc;
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+
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+ ASSERT_EQ(vpx_codec_enc_config_default(iface, &cfg, 0), VPX_CODEC_OK);
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+ // Start in threaded mode to ensure resolution and thread related
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+ // allocations are updated correctly across changes in resolution and
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+ // thread counts. See https://crbug.com/1486441.
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+ cfg.g_threads = 4;
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+ EXPECT_NO_FATAL_FAILURE(
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+ InitCodec(*iface, kInitWidth, kInitHeight, &enc.ctx, &cfg));
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+ if (IsVP9(iface)) {
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+ EXPECT_EQ(vpx_codec_control_(&enc.ctx, VP9E_SET_TILE_COLUMNS, 6),
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+ VPX_CODEC_OK);
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+ EXPECT_EQ(vpx_codec_control_(&enc.ctx, VP9E_SET_ROW_MT, i),
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+ VPX_CODEC_OK);
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+ }
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+
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+ cfg.g_w = 1000;
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+ cfg.g_h = 608;
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+ EXPECT_EQ(vpx_codec_enc_config_set(&enc.ctx, &cfg), VPX_CODEC_OK)
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+ << vpx_codec_error_detail(&enc.ctx);
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+
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+ cfg.g_w = 16;
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+ cfg.g_h = 720;
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+
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+ for (const auto threads : { 1, 4, 8, 6, 2, 1 }) {
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+ cfg.g_threads = threads;
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EXPECT_NO_FATAL_FAILURE(EncodeWithConfig(cfg, &enc.ctx))
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<< "iteration: " << i << " threads: " << threads;
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}
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diff -Naur libvpx.orig/vp8/encoder/onyx_if.c libvpx/vp8/encoder/onyx_if.c
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--- libvpx.orig/vp8/encoder/onyx_if.c 1970-01-01 01:00:01.000000000 +0100
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+++ libvpx/vp8/encoder/onyx_if.c 2023-09-29 21:01:44.155476128 +0200
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@@ -1443,6 +1443,11 @@
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last_h = cpi->oxcf.Height;
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prev_number_of_layers = cpi->oxcf.number_of_layers;
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+ if (cpi->initial_width) {
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+ // TODO(https://crbug.com/1486441): Allow changing thread counts; the
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+ // allocation is done once in vp8_create_compressor().
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+ oxcf->multi_threaded = cpi->oxcf.multi_threaded;
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+ }
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cpi->oxcf = *oxcf;
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switch (cpi->oxcf.Mode) {
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