!38 backport patches from upstream

From: @zhangruifang2020 
Reviewed-by: @gaoruoshu 
Signed-off-by: @gaoruoshu

backport-fix-the-buf-not-freed-in-read_field.patch

@@ -0,0 +1,23 @@
+From 775527e886a94d89ac90239ef54e1ef436956e75 Mon Sep 17 00:00:00 2001
+From: huangduirong <huangduirong@huawei.com>
+Date: Sat, 9 Oct 2021 16:50:08 +0800
+Subject: [PATCH] fix the buf not freed in read_field
+
+---
+ sysfs.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/sysfs.c b/sysfs.c
+index 7e7166e..018f294 100644
+--- a/sysfs.c
++++ b/sysfs.c
+@@ -39,7 +39,7 @@ char *read_field(char *base, char *name)
+ 	fd = open(fn, O_RDONLY);
+ 	free(fn);
+ 	if (fd < 0)
+-		goto bad;
++		goto bad_buf;
+ 	n = read(fd, buf, 4096);
+ 	close(fd);
+ 	if (n < 0)
+

backport-fix-warnings-in-sysfs.patch

@@ -0,0 +1,31 @@
+From 4146c9296a0cbd26f1c5e411cb44877f350053bd Mon Sep 17 00:00:00 2001
+From: Andi Kleen <ak@linux.intel.com>
+Date: Thu, 9 Dec 2021 17:12:29 -0800
+Subject: [PATCH] Fix warnings in sysfs.c
+
+---
+ sysfs.c | 2 --
+ 1 file changed, 2 deletions(-)
+
+diff --git a/sysfs.c b/sysfs.c
+index 018f294..cd0f7c7 100644
+--- a/sysfs.c
++++ b/sysfs.c
+@@ -31,7 +31,6 @@ char *read_field(char *base, char *name)
+ {
+ 	char *fn, *val;
+ 	int n, fd;
+-	struct stat st;
+ 	char *s;
+ 	char *buf = xalloc(4096);
+ 
+@@ -55,7 +54,6 @@ char *read_field(char *base, char *name)
+ 
+ bad_buf:
+ 	free(buf);
+-bad:
+ 	SYSERRprintf("Cannot read sysfs field %s/%s", base, name);
+ 	return xstrdup("");
+ }
+
+

backport-mcelog-Handle-sysfs-files-without-length.patch

@@ -0,0 +1,50 @@
+From 03be76d6bd223e39e89976a9f75e1e9d19c30a18 Mon Sep 17 00:00:00 2001
+From: Andi Kleen <andi@firstfloor.org>
+Date: Sat, 2 Oct 2021 16:45:20 -0700
+Subject: [PATCH] mcelog: Handle sysfs files without length
+
+---
+ sysfs.c | 12 ++++--------
+ 1 file changed, 4 insertions(+), 8 deletions(-)
+
+diff --git a/sysfs.c b/sysfs.c
+index bc61b4a..7e7166e 100644
+--- a/sysfs.c
++++ b/sysfs.c
+@@ -33,29 +33,25 @@ char *read_field(char *base, char *name)
+ 	int n, fd;
+ 	struct stat st;
+ 	char *s;
+-	char *buf = NULL;
++	char *buf = xalloc(4096);
+ 
+ 	xasprintf(&fn, "%s/%s", base, name);
+ 	fd = open(fn, O_RDONLY);
+ 	free(fn);
+ 	if (fd < 0)
+ 		goto bad;
+-	if (fstat(fd, &st) < 0) {
+-		close(fd);
+-		goto bad;		
+-	}
+-	buf = xalloc(st.st_size);
+-	n = read(fd, buf, st.st_size);
++	n = read(fd, buf, 4096);
+ 	close(fd);
+ 	if (n < 0)
+ 		goto  bad_buf;
+ 	val = xalloc(n + 1);
+ 	memcpy(val, buf, n);
++	val[n] = 0;
+ 	free(buf);
+ 	s = memchr(val, '\n', n);
+ 	if (s)
+ 		*s = 0;
+-	return  val;
++	return val;
+ 
+ bad_buf:
+ 	free(buf);
+-- 
+2.25.1
+

mcelog.spec

@@ -5,7 +5,7 @@
 
 Name:	mcelog
 Version:	168
-Release:	4
+Release:	5
 Epoch:		3
 Summary:	Linux kernel machine check handling middleware
 License:	GPLv2
@@ -14,6 +14,11 @@ Source0:	https://github.com/andikleen/%{name}/archive/v%{last_tar_version}.tar.g
 Source1:	mce-inject-%{mce_inject_ver}.tar.bz2
 Source2:	aer-inject-%{aer_inject_ver}.tar.bz2
 Source3:	mcelog.conf
+
+Patch0:backport-mcelog-Handle-sysfs-files-without-length.patch
+Patch1:backport-fix-the-buf-not-freed-in-read_field.patch
+Patch2:backport-fix-warnings-in-sysfs.patch
+
 ExclusiveArch:  i686 x86_64
 BuildRequires:	bison flex systemd gcc psmisc
 Requires(post): systemd
@@ -32,6 +37,9 @@ driver error recovery handler and PCIE AER core handler.
 
 %prep
 %setup -q -n %{name}-%{last_tar_version} -a 1 -a 2 
+%patch0 -p1
+%patch1 -p1
+%patch2 -p1
 
 %build
 make CFLAGS="$RPM_OPT_FLAGS  -Wl,-z,relro,-z,now -fpie" LDFLAGS="-Wl,-z,relro,-z,now -fpie -pie"
@@ -80,6 +88,9 @@ rm -rf $RPM_BUILD_ROOT
 %attr(0644,root,root) %{_mandir}/*/*
 
 %changelog
+* Fri Jun 16 2023 zhangruifang2020 <zhangruifang1@h-partners.com> - 3:168-5
+- backport patches from upstream
+
 * Tue Nov 22 2022 shixuantong <shixuantong1@huawei.com> - 3:168-4
 - enable check