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libubox: backport blobmsg_check_array() fix

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Fixes: FS#2833
Signed-off-by: Jo-Philipp Wich <jo@mein.io>
(backported from commit 955634b473284847e3c8281a6ac85655329d8b06)
This commit is contained in:
Jo-Philipp Wich 2020-02-27 22:25:59 +01:00
parent 4c1779ac2c
commit 82fbd85747
2 changed files with 34 additions and 1 deletions
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2
package/libs/libubox/Makefile
View File

@ -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

33
package/libs/libubox/patches/0017-blobmsg-fix-wrong-payload-len-passed-from-blobmsg_ch.patch Normal file
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@ -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)