libubox: backport blobmsg_check_array() fix

Fixes: FS#2833
Signed-off-by: Jo-Philipp Wich <jo@mein.io>
(backported from commit 955634b473284847e3c8281a6ac85655329d8b06)

diff --git a/package/libs/libubox/Makefile b/package/libs/libubox/Makefile
index f5a1f12f22f0967cfb2ac8b4f27e423fcce4abea..e3a827c1ab2b74e3b3fcc7028df951a9de811086 100644 (file)
--- a/package/libs/libubox/Makefile
+++ b/package/libs/libubox/Makefile
@@ -1,7 +1,7 @@
 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=libubox
-PKG_RELEASE=3
+PKG_RELEASE=4
 
 PKG_SOURCE_PROTO:=git
 PKG_SOURCE_URL=$(PROJECT_GIT)/project/libubox.git

diff --git a/package/libs/libubox/patches/0017-blobmsg-fix-wrong-payload-len-passed-from-blobmsg_ch.patch b/package/libs/libubox/patches/0017-blobmsg-fix-wrong-payload-len-passed-from-blobmsg_ch.patch
new file mode 100644 (file)
index 0000000..f1a99e5
--- /dev/null
+++ b/package/libs/libubox/patches/0017-blobmsg-fix-wrong-payload-len-passed-from-blobmsg_ch.patch
@@ -0,0 +1,33 @@
+From 75e300aeec25e032a9778bea34c713969960d1f0 Mon Sep 17 00:00:00 2001
+From: Chris Nisbet <nischris@gmail.com>
+Date: Wed, 12 Feb 2020 21:00:31 +1300
+Subject: [PATCH] blobmsg: fix wrong payload len passed from
+ blobmsg_check_array
+
+Fix incorrect use of blobmsg_len() on passed blobmsg to
+blobmsg_check_array_len() introduced in commit 379cd33d1992
+("fix wrong payload len passed from blobmsg_check_array") by using correct
+blob_len().
+
+By using blobmsg_len() a value too small was passed to blobmsg_check_array()
+which could lead to this function returning an error when there is none.
+
+Fixes: 379cd33d1992 ("fix wrong payload len passed from blobmsg_check_array")
+Signed-off-by: Chris Nisbet <nischris@gmail.com>
+[add fixes tag, rewrap commit message]
+Signed-off-by: Jo-Philipp Wich <jo@mein.io>
+---
+ blobmsg.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+--- a/blobmsg.c
++++ b/blobmsg.c
+@@ -120,7 +120,7 @@ bool blobmsg_check_attr_len(const struct
+ 
+ int blobmsg_check_array(const struct blob_attr *attr, int type)
+ {
+-      return blobmsg_check_array_len(attr, type, blobmsg_len(attr));
++      return blobmsg_check_array_len(attr, type, blob_len(attr));
+ }
+ 
+ int blobmsg_check_array_len(const struct blob_attr *attr, int type, size_t len)