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authorMaxin B. John <maxin.john@intel.com>2015-11-05 17:56:09 +0200
committerRichard Purdie <richard.purdie@linuxfoundation.org>2015-11-25 07:49:17 +0000
commitf47cf07ab9d00ed7eddc8e867138481f7bd2bb7d (patch)
treed0b4e232bf4327af9c370d6ba3c00408c985874b
parent8b990fd7054feaaaccce2819b5a915419c636a4a (diff)
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libsndfile: fix CVE-2014-9756
Fix divide by zero bug (CVE-2014-9756) Signed-off-by: Maxin B. John <maxin.john@intel.com> Signed-off-by: Ross Burton <ross.burton@intel.com>
-rw-r--r--meta/recipes-multimedia/libsndfile/files/libsndfile-fix-CVE-2014-9756.patch24
-rw-r--r--meta/recipes-multimedia/libsndfile/libsndfile1_1.0.25.bb1
2 files changed, 25 insertions, 0 deletions
diff --git a/meta/recipes-multimedia/libsndfile/files/libsndfile-fix-CVE-2014-9756.patch b/meta/recipes-multimedia/libsndfile/files/libsndfile-fix-CVE-2014-9756.patch
new file mode 100644
index 0000000000..b54b3ba669
--- /dev/null
+++ b/meta/recipes-multimedia/libsndfile/files/libsndfile-fix-CVE-2014-9756.patch
@@ -0,0 +1,24 @@
+src/file_io.c : Prevent potential divide-by-zero.
+
+Closes: https://github.com/erikd/libsndfile/issues/92
+
+Upstream-Status: Backport
+
+Fixes CVE-2014-9756
+
+Signed-off-by: Erik de Castro Lopo <erikd@mega-nerd.com>
+Signed-off-by: Maxin B. John <maxin.john@intel.com>
+---
+diff -Naur libsndfile-1.0.25-orig/src/file_io.c libsndfile-1.0.25/src/file_io.c
+--- libsndfile-1.0.25-orig/src/file_io.c 2011-01-19 12:12:28.000000000 +0200
++++ libsndfile-1.0.25/src/file_io.c 2015-11-04 15:02:04.337395618 +0200
+@@ -358,6 +358,9 @@
+ { sf_count_t total = 0 ;
+ ssize_t count ;
+
++ if (bytes == 0 || items == 0)
++ return 0 ;
++
+ if (psf->virtual_io)
+ return psf->vio.write (ptr, bytes*items, psf->vio_user_data) / bytes ;
+
diff --git a/meta/recipes-multimedia/libsndfile/libsndfile1_1.0.25.bb b/meta/recipes-multimedia/libsndfile/libsndfile1_1.0.25.bb
index 3e02f4ea78..be875c227b 100644
--- a/meta/recipes-multimedia/libsndfile/libsndfile1_1.0.25.bb
+++ b/meta/recipes-multimedia/libsndfile/libsndfile1_1.0.25.bb
@@ -9,6 +9,7 @@ PR = "r2"
SRC_URI = "http://www.mega-nerd.com/libsndfile/files/libsndfile-${PV}.tar.gz \
file://0001-src-sd2.c-Fix-segfault-in-SD2-RSRC-parser.patch \
file://0001-src-sd2.c-Fix-two-potential-buffer-read-overflows.patch \
+ file://libsndfile-fix-CVE-2014-9756.patch \
"
SRC_URI[md5sum] = "e2b7bb637e01022c7d20f95f9c3990a2"