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-rw-r--r--gnu/packages/patches/gst-plugins-bad-fix-overflow.patch263
1 files changed, 0 insertions, 263 deletions
diff --git a/gnu/packages/patches/gst-plugins-bad-fix-overflow.patch b/gnu/packages/patches/gst-plugins-bad-fix-overflow.patch
deleted file mode 100644
index 95ab13db51..0000000000
--- a/gnu/packages/patches/gst-plugins-bad-fix-overflow.patch
+++ /dev/null
@@ -1,263 +0,0 @@
-Fix an overflow when calculating something for AVC/HEVC videos:
-
-https://security-tracker.debian.org/tracker/TEMP-0000000-C6AAE1
-
-Patch copied from upstream source repository:
-
-https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/commit/0cfbf7ad91c7f121192c8ce135769f8eb276c41d
-From 0cfbf7ad91c7f121192c8ce135769f8eb276c41d Mon Sep 17 00:00:00 2001
-From: =?UTF-8?q?Sebastian=20Dr=C3=B6ge?= <sebastian@centricular.com>
-Date: Tue, 23 Mar 2021 19:19:14 +0200
-Subject: [PATCH] h2645parser: Catch overflows in AVC/HEVC NAL unit length
- calculations
-
-Offset and size are stored as 32 bit guint and might overflow when
-adding the nal_length_size, so let's avoid that.
-
-For the size this would happen if the AVC/HEVC NAL unit size happens to
-be stored in 4 bytes and is 4294967292 or higher, which is likely
-corrupted data anyway.
-
-For the offset this is something for the caller of these functions to
-take care of but is unlikely to happen as it would require parsing on a
->4GB buffer.
-
-Allowing these overflows causes all kinds of follow-up bugs in the
-h2645parse elements, ranging from infinite loops and memory leaks to
-potential memory corruptions.
-
-Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/2107>
----
- gst-libs/gst/codecparsers/gsth264parser.c | 16 +++++-
- gst-libs/gst/codecparsers/gsth265parser.c | 16 +++++-
- tests/check/libs/h264parser.c | 60 +++++++++++++++++++++++
- tests/check/libs/h265parser.c | 60 +++++++++++++++++++++++
- 4 files changed, 150 insertions(+), 2 deletions(-)
-
-diff --git a/gst-libs/gst/codecparsers/gsth264parser.c b/gst-libs/gst/codecparsers/gsth264parser.c
-index 012f1d0d7..68aa25068 100644
---- a/gst-libs/gst/codecparsers/gsth264parser.c
-+++ b/gst-libs/gst/codecparsers/gsth264parser.c
-@@ -1556,6 +1556,14 @@ gst_h264_parser_identify_nalu_avc (GstH264NalParser * nalparser,
-
- memset (nalu, 0, sizeof (*nalu));
-
-+ /* Would overflow guint below otherwise: the callers needs to ensure that
-+ * this never happens */
-+ if (offset > G_MAXUINT32 - nal_length_size) {
-+ GST_WARNING ("offset + nal_length_size overflow");
-+ nalu->size = 0;
-+ return GST_H264_PARSER_BROKEN_DATA;
-+ }
-+
- if (size < offset + nal_length_size) {
- GST_DEBUG ("Can't parse, buffer has too small size %" G_GSIZE_FORMAT
- ", offset %u", size, offset);
-@@ -1570,7 +1578,13 @@ gst_h264_parser_identify_nalu_avc (GstH264NalParser * nalparser,
- nalu->sc_offset = offset;
- nalu->offset = offset + nal_length_size;
-
-- if (size < nalu->size + nal_length_size) {
-+ if (nalu->size > G_MAXUINT32 - nal_length_size) {
-+ GST_WARNING ("NALU size + nal_length_size overflow");
-+ nalu->size = 0;
-+ return GST_H264_PARSER_BROKEN_DATA;
-+ }
-+
-+ if (size < (gsize) nalu->size + nal_length_size) {
- nalu->size = 0;
-
- return GST_H264_PARSER_NO_NAL_END;
-diff --git a/gst-libs/gst/codecparsers/gsth265parser.c b/gst-libs/gst/codecparsers/gsth265parser.c
-index 26e68b276..dc7f27aa9 100644
---- a/gst-libs/gst/codecparsers/gsth265parser.c
-+++ b/gst-libs/gst/codecparsers/gsth265parser.c
-@@ -1531,6 +1531,14 @@ gst_h265_parser_identify_nalu_hevc (GstH265Parser * parser,
-
- memset (nalu, 0, sizeof (*nalu));
-
-+ /* Would overflow guint below otherwise: the callers needs to ensure that
-+ * this never happens */
-+ if (offset > G_MAXUINT32 - nal_length_size) {
-+ GST_WARNING ("offset + nal_length_size overflow");
-+ nalu->size = 0;
-+ return GST_H265_PARSER_BROKEN_DATA;
-+ }
-+
- if (size < offset + nal_length_size) {
- GST_DEBUG ("Can't parse, buffer has too small size %" G_GSIZE_FORMAT
- ", offset %u", size, offset);
-@@ -1545,7 +1553,13 @@ gst_h265_parser_identify_nalu_hevc (GstH265Parser * parser,
- nalu->sc_offset = offset;
- nalu->offset = offset + nal_length_size;
-
-- if (size < nalu->size + nal_length_size) {
-+ if (nalu->size > G_MAXUINT32 - nal_length_size) {
-+ GST_WARNING ("NALU size + nal_length_size overflow");
-+ nalu->size = 0;
-+ return GST_H265_PARSER_BROKEN_DATA;
-+ }
-+
-+ if (size < (gsize) nalu->size + nal_length_size) {
- nalu->size = 0;
-
- return GST_H265_PARSER_NO_NAL_END;
-diff --git a/tests/check/libs/h264parser.c b/tests/check/libs/h264parser.c
-index c7c46d9a2..d322dd8db 100644
---- a/tests/check/libs/h264parser.c
-+++ b/tests/check/libs/h264parser.c
-@@ -229,6 +229,65 @@ GST_START_TEST (test_h264_parse_slice_5bytes)
-
- GST_END_TEST;
-
-+GST_START_TEST (test_h264_parse_identify_nalu_avc)
-+{
-+ GstH264ParserResult res;
-+ GstH264NalUnit nalu;
-+ GstH264NalParser *const parser = gst_h264_nal_parser_new ();
-+ /* Skip 3 bytes for the start code */
-+ const gsize nal_size = sizeof (slice_dpa) - 3;
-+ const gsize buf_size = 4 + nal_size;
-+ guint8 *buf = g_new (guint8, buf_size);
-+
-+ memcpy (buf + 4, slice_dpa + 3, nal_size);
-+
-+ GST_WRITE_UINT16_BE (buf + 2, nal_size);
-+ res = gst_h264_parser_identify_nalu_avc (parser, buf, 2, buf_size, 2, &nalu);
-+
-+ assert_equals_int (res, GST_H264_PARSER_OK);
-+ assert_equals_int (nalu.type, GST_H264_NAL_SLICE_DPA);
-+ assert_equals_int (nalu.offset, 4);
-+ assert_equals_int (nalu.size, nal_size);
-+
-+ GST_WRITE_UINT32_BE (buf, nal_size);
-+ res = gst_h264_parser_identify_nalu_avc (parser, buf, 0, buf_size, 4, &nalu);
-+
-+ assert_equals_int (res, GST_H264_PARSER_OK);
-+ assert_equals_int (nalu.type, GST_H264_NAL_SLICE_DPA);
-+ assert_equals_int (nalu.offset, 4);
-+ assert_equals_int (nalu.size, nal_size);
-+
-+ GST_WRITE_UINT32_BE (buf, G_MAXUINT32);
-+ res = gst_h264_parser_identify_nalu_avc (parser, buf, 0, buf_size, 4, &nalu);
-+
-+ assert_equals_int (res, GST_H264_PARSER_BROKEN_DATA);
-+
-+ GST_WRITE_UINT32_BE (buf, G_MAXUINT32 - 2);
-+ res = gst_h264_parser_identify_nalu_avc (parser, buf, 0, buf_size, 4, &nalu);
-+
-+ assert_equals_int (res, GST_H264_PARSER_BROKEN_DATA);
-+
-+ GST_WRITE_UINT32_BE (buf, G_MAXUINT32 - 3);
-+ res = gst_h264_parser_identify_nalu_avc (parser, buf, 0, buf_size, 4, &nalu);
-+
-+ assert_equals_int (res, GST_H264_PARSER_BROKEN_DATA);
-+
-+ GST_WRITE_UINT32_BE (buf, G_MAXUINT32 - 4);
-+ res = gst_h264_parser_identify_nalu_avc (parser, buf, 0, buf_size, 4, &nalu);
-+
-+ assert_equals_int (res, GST_H264_PARSER_NO_NAL_END);
-+
-+ GST_WRITE_UINT32_BE (buf, G_MAXUINT32 - 6);
-+ res = gst_h264_parser_identify_nalu_avc (parser, buf, 0, buf_size, 4, &nalu);
-+
-+ assert_equals_int (res, GST_H264_PARSER_NO_NAL_END);
-+
-+ g_free (buf);
-+ gst_h264_nal_parser_free (parser);
-+}
-+
-+GST_END_TEST;
-+
- static guint8 nalu_sps_with_vui[] = {
- 0x00, 0x00, 0x00, 0x01, 0x67, 0x64, 0x00, 0x28,
- 0xac, 0xd9, 0x40, 0x78, 0x04, 0x4f, 0xde, 0x03,
-@@ -666,6 +725,7 @@ h264parser_suite (void)
- tcase_add_test (tc_chain, test_h264_parse_slice_dpa);
- tcase_add_test (tc_chain, test_h264_parse_slice_eoseq_slice);
- tcase_add_test (tc_chain, test_h264_parse_slice_5bytes);
-+ tcase_add_test (tc_chain, test_h264_parse_identify_nalu_avc);
- tcase_add_test (tc_chain, test_h264_parse_invalid_sei);
- tcase_add_test (tc_chain, test_h264_create_sei);
-
-diff --git a/tests/check/libs/h265parser.c b/tests/check/libs/h265parser.c
-index 0a0e4db97..5b6a215ec 100644
---- a/tests/check/libs/h265parser.c
-+++ b/tests/check/libs/h265parser.c
-@@ -255,6 +255,65 @@ GST_START_TEST (test_h265_parse_slice_6bytes)
-
- GST_END_TEST;
-
-+GST_START_TEST (test_h265_parse_identify_nalu_hevc)
-+{
-+ GstH265ParserResult res;
-+ GstH265NalUnit nalu;
-+ GstH265Parser *parser = gst_h265_parser_new ();
-+ /* Skip 4 bytes for the start code */
-+ const gsize nal_size = sizeof (slice_eos_slice_eob) - 4;
-+ const gsize buf_size = 4 + nal_size;
-+ guint8 *buf = g_new (guint8, buf_size);
-+
-+ memcpy (buf + 4, slice_eos_slice_eob + 4, nal_size);
-+
-+ GST_WRITE_UINT16_BE (buf + 2, nal_size);
-+ res = gst_h265_parser_identify_nalu_hevc (parser, buf, 2, buf_size, 2, &nalu);
-+
-+ assert_equals_int (res, GST_H265_PARSER_OK);
-+ assert_equals_int (nalu.type, GST_H265_NAL_SLICE_IDR_W_RADL);
-+ assert_equals_int (nalu.offset, 4);
-+ assert_equals_int (nalu.size, nal_size);
-+
-+ GST_WRITE_UINT32_BE (buf, nal_size);
-+ res = gst_h265_parser_identify_nalu_hevc (parser, buf, 0, buf_size, 4, &nalu);
-+
-+ assert_equals_int (res, GST_H265_PARSER_OK);
-+ assert_equals_int (nalu.type, GST_H265_NAL_SLICE_IDR_W_RADL);
-+ assert_equals_int (nalu.offset, 4);
-+ assert_equals_int (nalu.size, nal_size);
-+
-+ GST_WRITE_UINT32_BE (buf, G_MAXUINT32);
-+ res = gst_h265_parser_identify_nalu_hevc (parser, buf, 0, buf_size, 4, &nalu);
-+
-+ assert_equals_int (res, GST_H265_PARSER_BROKEN_DATA);
-+
-+ GST_WRITE_UINT32_BE (buf, G_MAXUINT32 - 2);
-+ res = gst_h265_parser_identify_nalu_hevc (parser, buf, 0, buf_size, 4, &nalu);
-+
-+ assert_equals_int (res, GST_H265_PARSER_BROKEN_DATA);
-+
-+ GST_WRITE_UINT32_BE (buf, G_MAXUINT32 - 3);
-+ res = gst_h265_parser_identify_nalu_hevc (parser, buf, 0, buf_size, 4, &nalu);
-+
-+ assert_equals_int (res, GST_H265_PARSER_BROKEN_DATA);
-+
-+ GST_WRITE_UINT32_BE (buf, G_MAXUINT32 - 4);
-+ res = gst_h265_parser_identify_nalu_hevc (parser, buf, 0, buf_size, 4, &nalu);
-+
-+ assert_equals_int (res, GST_H265_PARSER_NO_NAL_END);
-+
-+ GST_WRITE_UINT32_BE (buf, G_MAXUINT32 - 6);
-+ res = gst_h265_parser_identify_nalu_hevc (parser, buf, 0, buf_size, 4, &nalu);
-+
-+ assert_equals_int (res, GST_H265_PARSER_NO_NAL_END);
-+
-+ g_free (buf);
-+ gst_h265_parser_free (parser);
-+}
-+
-+GST_END_TEST;
-+
- GST_START_TEST (test_h265_base_profiles)
- {
- GstH265ProfileTierLevel ptl;
-@@ -1101,6 +1160,7 @@ h265parser_suite (void)
- tcase_add_test (tc_chain, test_h265_parse_slice_eos_slice_eob);
- tcase_add_test (tc_chain, test_h265_parse_pic_timing);
- tcase_add_test (tc_chain, test_h265_parse_slice_6bytes);
-+ tcase_add_test (tc_chain, test_h265_parse_identify_nalu_hevc);
- tcase_add_test (tc_chain, test_h265_base_profiles);
- tcase_add_test (tc_chain, test_h265_base_profiles_compat);
- tcase_add_test (tc_chain, test_h265_format_range_profiles_exact_match);
---
-2.31.1
-
generated by cgit v1.2.3 (git 2.46.2) at 2024-11-01 15:40:01 +0000