gstreamer1.0: Backport fix for CVE-2024-47606

Upstream-Status: Backport [https://gitlab.freedesktop.org/gstreamer/gstreamer/-/commit/72af11b248b4cb60d3dfe4e9459eec0d20052c9b]

(From OE-Core rev: de94acd8f8be37fbc6e0b16693dae8a7efb5910c)

Signed-off-by: Vijay Anusuri <vanusuri@mvista.com>
Signed-off-by: Steve Sakoman <steve@sakoman.com>

2 files changed, 57 insertions, 0 deletions

diff --git a/meta/recipes-multimedia/gstreamer/gstreamer1.0/CVE-2024-47606.patch b/meta/recipes-multimedia/gstreamer/gstreamer1.0/CVE-2024-47606.patch
new file mode 100644
index 0000000000..6334af4226
--- /dev/null
+++ b/meta/recipes-multimedia/gstreamer/gstreamer1.0/CVE-2024-47606.patch
@@ -0,0 +1,56 @@
+From 72af11b248b4cb60d3dfe4e9459eec0d20052c9b Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Sebastian=20Dr=C3=B6ge?= <sebastian@centricular.com>
+Date: Thu, 26 Sep 2024 22:07:22 +0300
+Subject: [PATCH] allocator: Avoid integer overflow when allocating sysmem
+
+Thanks to Antonio Morales for finding and reporting the issue.
+
+Fixes GHSL-2024-166
+Fixes https://gitlab.freedesktop.org/gstreamer/gstreamer/-/issues/3851
+
+Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/8044>
+
+Upstream-Status: Backport [https://gitlab.freedesktop.org/gstreamer/gstreamer/-/commit/72af11b248b4cb60d3dfe4e9459eec0d20052c9b]
+CVE: CVE-2024-47606
+Signed-off-by: Vijay Anusuri <vanusuri@mvista.com>
+---
+ gst/gstallocator.c | 14 ++++++++++++++
+ 1 file changed, 14 insertions(+)
+
+diff --git a/gst/gstallocator.c b/gst/gstallocator.c
+index f3cd20e..ff6dda4 100644
+--- a/gst/gstallocator.c
++++ b/gst/gstallocator.c
+@@ -430,8 +430,20 @@ _sysmem_new_block (GstMemoryFlags flags,
+   /* ensure configured alignment */
+   align |= gst_memory_alignment;
+   /* allocate more to compensate for alignment */
++  if (align > G_MAXSIZE || maxsize > G_MAXSIZE - align) {
++    GST_CAT_WARNING (GST_CAT_MEMORY,
++       "Allocating %" G_GSIZE_FORMAT " bytes with alignment %" G_GSIZE_FORMAT
++       "x overflows", maxsize, align);
++    return NULL;
++  }
+   maxsize += align;
+   /* alloc header and data in one block */
++  if (maxsize > G_MAXSIZE - sizeof (GstMemorySystem)) {
++    GST_CAT_WARNING (GST_CAT_MEMORY,
++       "Allocating %" G_GSIZE_FORMAT " bytes with alignment %" G_GSIZE_FORMAT
++       "x overflows", maxsize, align);
++    return NULL;
++  }
+   slice_size = sizeof (GstMemorySystem) + maxsize;
+ 
+   mem = g_slice_alloc (slice_size);
+@@ -481,6 +493,8 @@ _sysmem_copy (GstMemorySystem * mem, gssize offset, gsize size)
+     size = mem->mem.size > offset ? mem->mem.size - offset : 0;
+ 
+   copy = _sysmem_new_block (0, size, mem->mem.align, 0, size);
++  if (!copy)
++    return NULL;
+   GST_CAT_DEBUG (GST_CAT_PERFORMANCE,
+       "memcpy %" G_GSIZE_FORMAT " memory %p -> %p", size, mem, copy);
+   memcpy (copy->data, mem->data + mem->mem.offset + offset, size);
+-- 
+2.25.1
+
diff --git a/meta/recipes-multimedia/gstreamer/gstreamer1.0_1.20.7.bb b/meta/recipes-multimedia/gstreamer/gstreamer1.0_1.20.7.bb
index cf81620833..b95c67f586 100644
--- a/meta/recipes-multimedia/gstreamer/gstreamer1.0_1.20.7.bb
+++ b/meta/recipes-multimedia/gstreamer/gstreamer1.0_1.20.7.bb
@@ -21,6 +21,7 @@ SRC_URI = "https://gstreamer.freedesktop.org/src/gstreamer/gstreamer-${PV}.tar.x
            file://0002-tests-add-support-for-install-the-tests.patch;striplevel=3 \
            file://0003-tests-use-a-dictionaries-for-environment.patch;striplevel=3 \
            file://0004-tests-add-helper-script-to-run-the-installed_tests.patch;striplevel=3 \
+           file://CVE-2024-47606.patch \
            "
 SRC_URI[sha256sum] = "1757184a07b9703219e8b1961f81cb1dd64320d147fc045ac8eb499efbea79be"