!9 fix CVE-2020-8252

From: @wangxiao65
Reviewed-by: @jackie_wu123,@small_leek
Signed-off-by: @small_leek

CVE-2020-8252.patch

@@ -0,0 +1,41 @@
+From 0e6e8620496dff0eb285589ef1e37a7f407f3ddd Mon Sep 17 00:00:00 2001
+From: Ben Noordhuis <info@bnoordhuis.nl>
+Date: Mon, 24 Aug 2020 11:42:27 +0200
+Subject: [PATCH] unix: don't use _POSIX_PATH_MAX
+
+Libuv was using _POSIX_PATH_MAX wrong. Bug introduced in commit b56d279b
+("unix: do not require PATH_MAX to be defined") from September 2018.
+
+_POSIX_PATH_MAX is the minimum max path size guaranteed by POSIX, not
+the actual max path size of the system libuv runs on. _POSIX_PATH_MAX
+is always 256, the real max is often much bigger.
+
+This commit fixes buffer overruns when processing very long paths in
+uv_fs_readlink() and uv_fs_realpath() because libuv was not allocating
+enough memory to store the result.
+
+Fixes: https://github.com/libuv/libuv/issues/2965
+PR-URL: https://github.com/libuv/libuv/pull/2966
+Reviewed-By: Richard Lau <riclau@uk.ibm.com>
+Reviewed-By: Santiago Gimeno <santiago.gimeno@gmail.com>
+Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
+Reviewed-By: Jameson Nash <vtjnash@gmail.com>
+---
+ src/unix/internal.h | 4 +---
+ 1 file changed, 1 insertion(+), 3 deletions(-)
+
+diff --git a/src/unix/internal.h b/src/unix/internal.h
+index 30711673e0..9d3c2297f8 100644
+--- a/src/unix/internal.h
++++ b/src/unix/internal.h
+@@ -62,9 +62,7 @@
+ # include <AvailabilityMacros.h>
+ #endif
+ 
+-#if defined(_POSIX_PATH_MAX)
+-# define UV__PATH_MAX _POSIX_PATH_MAX
+-#elif defined(PATH_MAX)
++#if defined(PATH_MAX)
+ # define UV__PATH_MAX PATH_MAX
+ #else
+ # define UV__PATH_MAX 8192

libuv.spec

@@ -1,7 +1,7 @@
 Name:           libuv
 Epoch:          1
 Version:        1.38.1
-Release:        1
+Release:        2
 Summary:        A multi-platform support library with a focus on asynchronous I/O
 
 # the licensing breakdown is described in detail in the LICENSE file
@@ -9,6 +9,7 @@ License:        MIT and BSD and ISC
 URL:            http://libuv.org/
 Source0:        http://dist.libuv.org/dist/v%{version}/%{name}-v%{version}.tar.gz
 Source2:        %{name}.pc.in
+Patch0:         CVE-2020-8252.patch
 
 BuildRequires:  autoconf automake libtool gcc
 
@@ -60,6 +61,9 @@ Development libraries for libuv
 %doc ChangeLog
 
 %changelog
+* Mon Dec 14 2020 wangxiao <wangxiao65@huawei.com> - 1.38.1-2
+- fix CVE-2020-8252
+
 * Mon Jul 27 2020wenzhanli<wenzhanli2@huawei.com> - 1.38.1-1
 - Type:bugfix
 - ID:NA