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import grub2-2.02-99.el8_4.1

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CentOS Sources 2021-09-21 03:18:33 -04:00 committed by root
parent c6f0640526
commit 3b06c03f9e
3 changed files with 109 additions and 1 deletions
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103
SOURCES/0481-ieee1275-ofdisk-retry-on-open-failure.patch Normal file
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@ -0,0 +1,103 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Diego Domingos <diegodo@br.ibm.com>
Date: Wed, 10 Mar 2021 14:17:52 -0500
Subject: [PATCH] ieee1275/ofdisk: retry on open failure
This patch aims to make grub more robust when booting from SAN/Multipath disks.
If a path is failing intermittently so grub will retry the OPEN and READ the
disk (grub_ieee1275_open and grub_ieee1275_read) until the total amount of times
specified in MAX_RETRIES.
Signed-off-by: Diego Domingos <diegodo@br.ibm.com>
---
grub-core/disk/ieee1275/ofdisk.c | 25 ++++++++++++++++++++-----
include/grub/ieee1275/ofdisk.h | 8 ++++++++
2 files changed, 28 insertions(+), 5 deletions(-)
diff --git a/grub-core/disk/ieee1275/ofdisk.c b/grub-core/disk/ieee1275/ofdisk.c
index f3a6ecd797f..98325ca982f 100644
--- a/grub-core/disk/ieee1275/ofdisk.c
+++ b/grub-core/disk/ieee1275/ofdisk.c
@@ -225,7 +225,9 @@ dev_iterate (const struct grub_ieee1275_devalias *alias)
char *buf, *bufptr;
unsigned i;
- if (grub_ieee1275_open (alias->path, &ihandle))
+
+ RETRY_IEEE1275_OFDISK_OPEN(alias->path, &ihandle)
+ if (! ihandle)
return;
/* This method doesn't need memory allocation for the table. Open
@@ -305,7 +307,9 @@ dev_iterate (const struct grub_ieee1275_devalias *alias)
return;
}
- if (grub_ieee1275_open (alias->path, &ihandle))
+ RETRY_IEEE1275_OFDISK_OPEN(alias->path, &ihandle);
+
+ if (! ihandle)
{
grub_free (buf);
grub_free (table);
@@ -495,7 +499,7 @@ grub_ofdisk_open (const char *name, grub_disk_t disk)
last_ihandle = 0;
last_devpath = NULL;
- grub_ieee1275_open (op->open_path, &last_ihandle);
+ RETRY_IEEE1275_OFDISK_OPEN(op->open_path, &last_ihandle);
if (! last_ihandle)
return grub_error (GRUB_ERR_UNKNOWN_DEVICE, "can't open device");
last_devpath = op->open_path;
@@ -571,7 +575,7 @@ grub_ofdisk_prepare (grub_disk_t disk, grub_disk_addr_t sector)
last_ihandle = 0;
last_devpath = NULL;
- grub_ieee1275_open (disk->data, &last_ihandle);
+ RETRY_IEEE1275_OFDISK_OPEN(disk->data, &last_ihandle);
if (! last_ihandle)
return grub_error (GRUB_ERR_UNKNOWN_DEVICE, "can't open device");
last_devpath = disk->data;
@@ -598,12 +602,23 @@ grub_ofdisk_read (grub_disk_t disk, grub_disk_addr_t sector,
return err;
grub_ieee1275_read (last_ihandle, buf, size << disk->log_sector_size,
&actual);
- if (actual != (grub_ssize_t) (size << disk->log_sector_size))
+ int i = 0;
+ while(actual != (grub_ssize_t) (size << disk->log_sector_size)){
+ if (i>MAX_RETRIES){
return grub_error (GRUB_ERR_READ_ERROR, N_("failure reading sector 0x%llx "
"from `%s'"),
(unsigned long long) sector,
disk->name);
+ }
+ last_devpath = NULL;
+ err = grub_ofdisk_prepare (disk, sector);
+ if (err)
+ return err;
+ grub_ieee1275_read (last_ihandle, buf, size << disk->log_sector_size,
+ &actual);
+ i++;
+ }
return 0;
}
diff --git a/include/grub/ieee1275/ofdisk.h b/include/grub/ieee1275/ofdisk.h
index 2f69e3f191d..7d2d5409305 100644
--- a/include/grub/ieee1275/ofdisk.h
+++ b/include/grub/ieee1275/ofdisk.h
@@ -22,4 +22,12 @@
extern void grub_ofdisk_init (void);
extern void grub_ofdisk_fini (void);
+#define MAX_RETRIES 20
+
+
+#define RETRY_IEEE1275_OFDISK_OPEN(device, last_ihandle) unsigned retry_i=0;for(retry_i=0; retry_i < MAX_RETRIES; retry_i++){ \
+ if(!grub_ieee1275_open(device, last_ihandle)) \
+ break; \
+ grub_dprintf("ofdisk","Opening disk %s failed. Retrying...\n",device); }
+
#endif /* ! GRUB_INIT_HEADER */

1
SOURCES/grub.patches
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@ -478,3 +478,4 @@ Patch0477: 0477-kern-misc-Add-function-to-check-printf-format-agains.patch
Patch0478: 0478-gfxmenu-gui-Check-printf-format-in-the-gui_progress_.patch
Patch0479: 0479-kern-mm-Fix-grub_debug_calloc-compilation-error.patch
Patch0480: 0480-efi-net-Fix-malformed-device-path-arithmetic-errors-.patch
Patch0481: 0481-ieee1275-ofdisk-retry-on-open-failure.patch

6
SPECS/grub2.spec
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@ -7,7 +7,7 @@
Name: grub2
Epoch: 1
Version: 2.02
Release: 99%{?dist}
Release: 99%{?dist}.1
Summary: Bootloader with support for Linux, Multiboot and more
Group: System Environment/Base
License: GPLv3+
@ -503,6 +503,10 @@ fi
%endif
%changelog
* Mon May 17 2021 Javier Martinez Canillas <javierm@redhat.com> - 2.02-99.el8_4.1
- Fix boot failures in ppc64le caused by storage race condition (diegodo)
Resolves: rhbz#1961265
* Thu Feb 25 2021 Javier Martinez Canillas <javierm@redhat.com> - 2.02-99
- Fix bug of grub2-install not checking for the SBAT option
Resolves: CVE-2020-14372