1 files changed, 56 insertions, 0 deletions

diff --git a/meta/recipes-multimedia/gstreamer/gstreamer1.0/0005-allocator-Avoid-integer-overflow-when-allocating-sys.patch b/meta/recipes-multimedia/gstreamer/gstreamer1.0/0005-allocator-Avoid-integer-overflow-when-allocating-sys.patch
new file mode 100644
index 0000000000..5d8575711a
--- /dev/null
+++ b/meta/recipes-multimedia/gstreamer/gstreamer1.0/0005-allocator-Avoid-integer-overflow-when-allocating-sys.patch
@@ -0,0 +1,56 @@
+From f1cdc6f24340f6cce4cc7020628002f5c70dd6c7 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/8032>
+
+CVE: CVE-2024-47606
+Upstream-Status: Backport [https://gitlab.freedesktop.org/gstreamer/gstreamer/-/commit/f1cdc6f24340f6cce4cc7020628002f5c70dd6c7]
+Signed-off-by: Peter Marko <peter.marko@siemens.com>
+---
+ gst/gstallocator.c | 14 ++++++++++++++
+ 1 file changed, 14 insertions(+)
+
+diff --git a/gst/gstallocator.c b/gst/gstallocator.c
+index 996f5dc946..198cfe9523 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);
+-- 
+2.30.2
+