opusfile: patch CVE-2022-47021

This patch is mentioned in [1] and [2].

[1] https://nvd.nist.gov/vuln/detail/CVE-2022-47021
[2] https://github.com/xiph/opusfile/issues/36

Signed-off-by: Peter Marko <peter.marko@siemens.com>
Signed-off-by: Khem Raj <raj.khem@gmail.com>

2 files changed, 46 insertions, 0 deletions

diff --git a/meta-multimedia/recipes-multimedia/opusfile/opusfile/CVE-2022-47021.patch b/meta-multimedia/recipes-multimedia/opusfile/opusfile/CVE-2022-47021.patch
new file mode 100644
index 0000000000..48a7cab3f5
--- /dev/null
+++ b/meta-multimedia/recipes-multimedia/opusfile/opusfile/CVE-2022-47021.patch
@@ -0,0 +1,44 @@
+From 0a4cd796df5b030cb866f3f4a5e41a4b92caddf5 Mon Sep 17 00:00:00 2001
+From: Ralph Giles <giles@thaumas.net>
+Date: Tue, 6 Sep 2022 19:04:31 -0700
+Subject: [PATCH] Propagate allocation failure from ogg_sync_buffer.
+
+Instead of segfault, report OP_EFAULT if ogg_sync_buffer returns
+a null pointer. This allows more graceful recovery by the caller
+in the unlikely event of a fallible ogg_malloc call.
+
+We do check the return value elsewhere in the code, so the new
+checks make the code more consistent.
+
+Thanks to https://github.com/xiph/opusfile/issues/36 for reporting.
+
+Signed-off-by: Timothy B. Terriberry <tterribe@xiph.org>
+Signed-off-by: Mark Harris <mark.hsj@gmail.com>
+
+CVE: CVE-2022-47021
+Upstream-Status: Backport [https://github.com/xiph/opusfile/commit/0a4cd796df5b030cb866f3f4a5e41a4b92caddf5]
+Signed-off-by: Peter Marko <peter.marko@siemens.com>
+---
+ src/opusfile.c | 2 ++
+ 1 file changed, 2 insertions(+)
+
+diff --git a/src/opusfile.c b/src/opusfile.c
+index ca219b2..3c3c81e 100644
+--- a/src/opusfile.c
++++ b/src/opusfile.c
+@@ -148,6 +148,7 @@ static int op_get_data(OggOpusFile *_of,int _nbytes){
+   int            nbytes;
+   OP_ASSERT(_nbytes>0);
+   buffer=(unsigned char *)ogg_sync_buffer(&_of->oy,_nbytes);
++  if(OP_UNLIKELY(buffer==NULL))return OP_EFAULT;
+   nbytes=(int)(*_of->callbacks.read)(_of->stream,buffer,_nbytes);
+   OP_ASSERT(nbytes<=_nbytes);
+   if(OP_LIKELY(nbytes>0))ogg_sync_wrote(&_of->oy,nbytes);
+@@ -1527,6 +1528,7 @@ static int op_open1(OggOpusFile *_of,
+   if(_initial_bytes>0){
+     char *buffer;
+     buffer=ogg_sync_buffer(&_of->oy,(long)_initial_bytes);
++    if(OP_UNLIKELY(buffer==NULL))return OP_EFAULT;
+     memcpy(buffer,_initial_data,_initial_bytes*sizeof(*buffer));
+     ogg_sync_wrote(&_of->oy,(long)_initial_bytes);
+   }
diff --git a/meta-multimedia/recipes-multimedia/opusfile/opusfile_0.12.bb b/meta-multimedia/recipes-multimedia/opusfile/opusfile_0.12.bb
index c775cef5a1..9e1d80e8dd 100644
--- a/meta-multimedia/recipes-multimedia/opusfile/opusfile_0.12.bb
+++ b/meta-multimedia/recipes-multimedia/opusfile/opusfile_0.12.bb
@@ -11,4 +11,6 @@ SRC_URI = "https://downloads.xiph.org/releases/opus/${BP}.tar.gz"
 SRC_URI[md5sum] = "45e8c62f6cd413395223c82f06bfa8ec"
 SRC_URI[sha256sum] = "118d8601c12dd6a44f52423e68ca9083cc9f2bfe72da7a8c1acb22a80ae3550b"
 
+SRC_URI += "file://CVE-2022-47021.patch"
+
 inherit autotools pkgconfig