libsndfile: fix CVE-2022-33065 Signed integer overflow in src/mat4.c

(From OE-Core rev: 0dc086b37b1c333adf99c01ce4ecb717df48d6f9)

Signed-off-by: Vivek Kumbhar <vkumbhar@mvista.com>
Signed-off-by: Steve Sakoman <steve@sakoman.com>

2 files changed, 47 insertions, 0 deletions

diff --git a/meta/recipes-multimedia/libsndfile/libsndfile1/CVE-2022-33065.patch b/meta/recipes-multimedia/libsndfile/libsndfile1/CVE-2022-33065.patch
new file mode 100644
index 0000000000..c5fba4d6b5
--- /dev/null
+++ b/meta/recipes-multimedia/libsndfile/libsndfile1/CVE-2022-33065.patch
@@ -0,0 +1,46 @@
+From 0754562e13d2e63a248a1c82f90b30bc0ffe307c Mon Sep 17 00:00:00 2001
+From: Alex Stewart <alex.stewart@ni.com>
+Date: Tue, 10 Oct 2023 16:10:34 -0400
+Subject: [PATCH] mat4/mat5: fix int overflow in dataend calculation
+
+The clang sanitizer warns of a possible signed integer overflow when
+calculating the `dataend` value in `mat4_read_header()`.
+
+```
+src/mat4.c:323:41: runtime error: signed integer overflow: 205 * -100663296 cannot be represented in type 'int'
+SUMMARY: UndefinedBehaviorSanitizer: undefined-behavior src/mat4.c:323:41 in
+src/mat4.c:323:48: runtime error: signed integer overflow: 838860800 * 4 cannot be represented in type 'int'
+SUMMARY: UndefinedBehaviorSanitizer: undefined-behavior src/mat4.c:323:48 in
+```
+
+Cast the offending `rows` and `cols` ints to `sf_count_t` (the type of
+`dataend` before performing the calculation, to avoid the issue.
+
+CVE: CVE-2022-33065
+Fixes: https://github.com/libsndfile/libsndfile/issues/789
+Fixes: https://github.com/libsndfile/libsndfile/issues/833
+
+Signed-off-by: Alex Stewart <alex.stewart@ni.com>
+
+Upstream-Status: Backport [https://github.com/libsndfile/libsndfile/commit/0754562e13d2e63a248a1c82f90b30bc0ffe307c]
+CVE: CVE-2022-33065
+Signed-off-by: Vivek Kumbhar <vkumbhar@mvista.com>
+---
+ src/mat4.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/src/mat4.c b/src/mat4.c
+index 0b1b414..575683b 100644
+--- a/src/mat4.c
++++ b/src/mat4.c
+@@ -320,7 +320,7 @@ mat4_read_header (SF_PRIVATE *psf)
+                                psf->filelength - psf->dataoffset, psf->sf.channels * psf->sf.frames * psf->bytewidth) ;
+                }
+        else if ((psf->filelength - psf->dataoffset) > psf->sf.channels * psf->sf.frames * psf->bytewidth)
+-               psf->dataend = psf->dataoffset + rows * cols * psf->bytewidth ;
++               psf->dataend = psf->dataoffset + (sf_count_t) rows * (sf_count_t) cols * psf->bytewidth ;
+
+        psf->datalength = psf->filelength - psf->dataoffset - psf->dataend ;
+
+--
+2.40.1
diff --git a/meta/recipes-multimedia/libsndfile/libsndfile1_1.0.31.bb b/meta/recipes-multimedia/libsndfile/libsndfile1_1.0.31.bb
index f6ea585e34..0c654fd853 100644
--- a/meta/recipes-multimedia/libsndfile/libsndfile1_1.0.31.bb
+++ b/meta/recipes-multimedia/libsndfile/libsndfile1_1.0.31.bb
@@ -11,6 +11,7 @@ LICENSE = "LGPL-2.1-only"
 SRC_URI = "https://github.com/libsndfile/libsndfile/releases/download/${PV}/libsndfile-${PV}.tar.bz2 \
            file://noopus.patch \
            file://0001-flac-Fix-improper-buffer-reusing-732.patch \
+           file://CVE-2022-33065.patch \
           "
 UPSTREAM_CHECK_URI = "https://github.com/libsndfile/libsndfile/releases/"