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* Fri Sep 16 2022 Tomas Bzatek <tbzatek@redhat.com> - 2.9.4-4

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- Restrict ATA Secure Erase Format() options (#2120329)

Resolves: #2120329
This commit is contained in:
Tomas Bzatek 2022-09-16 15:15:12 +02:00
parent d5e12c9bf9
commit 63ea2b4d1f
2 changed files with 66 additions and 1 deletions
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60
udisks-2.10.0-block_format_ata_secure_erase.patch Normal file
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@ -0,0 +1,60 @@
From eb917d346bc8592924c5f6566b01841176c53c8c Mon Sep 17 00:00:00 2001
From: Tomas Bzatek <tbzatek@redhat.com>
Date: Mon, 22 Aug 2022 16:27:11 +0200
Subject: [PATCH] udiskslinuxblock: Only permit ATA Secure Erase during
Format() on a whole block device
ATA Secure Erase requested as an option to the Format() method call used
to perform the actual erase on a whole drive object it looked up. When
Format() was called on a partition, this led to data loss on a whole drive.
This commit adds a safeguard to check that the Format() is requested
on a whole block device.
Severity of this issue was slightly lowered by a failure to submit
the ATA Secure erase command in case some filesystem was mounted
at that point.
---
src/udiskslinuxblock.c | 16 ++++++++++++++++
1 file changed, 16 insertions(+)
diff --git a/src/udiskslinuxblock.c b/src/udiskslinuxblock.c
index d1da94edf..db0ed2bf6 100644
--- a/src/udiskslinuxblock.c
+++ b/src/udiskslinuxblock.c
@@ -2354,6 +2354,7 @@ erase_ata_device (UDisksBlock *block,
{
gboolean ret = FALSE;
UDisksObject *drive_object = NULL;
+ UDisksLinuxBlockObject *block_object = NULL;
UDisksDriveAta *ata = NULL;
drive_object = udisks_daemon_find_object (daemon, udisks_block_get_drive (block));
@@ -2369,6 +2370,20 @@ erase_ata_device (UDisksBlock *block,
goto out;
}
+ /* Reverse check to ensure we're erasing whole block device and not a partition */
+ block_object = udisks_linux_drive_object_get_block (UDISKS_LINUX_DRIVE_OBJECT (drive_object), FALSE /* get_hw */);
+ if (block_object == NULL)
+ {
+ g_set_error (error, UDISKS_ERROR, UDISKS_ERROR_FAILED, "Couldn't find a block device for the drive to erase");
+ goto out;
+ }
+ if (g_strcmp0 (g_dbus_object_get_object_path (G_DBUS_OBJECT (object)),
+ g_dbus_object_get_object_path (G_DBUS_OBJECT (block_object))) != 0)
+ {
+ g_set_error (error, UDISKS_ERROR, UDISKS_ERROR_FAILED, "ATA secure erase needs to be performed on a whole block device");
+ goto out;
+ }
+
/* sleep a tiny bit here to avoid the secure erase code racing with
* programs spawned by udev
*/
@@ -2382,6 +2397,7 @@ erase_ata_device (UDisksBlock *block,
out:
g_clear_object (&ata);
g_clear_object (&drive_object);
+ g_clear_object (&block_object);
return ret;
}

7
udisks2.spec
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@ -48,7 +48,7 @@
Name: udisks2
Summary: Disk Manager
Version: 2.9.4
Release: 3%{?dist}
Release: 4%{?dist}
License: GPLv2+
URL: https://github.com/storaged-project/udisks
Source0: https://github.com/storaged-project/udisks/releases/download/udisks-%{version}/udisks-%{version}.tar.bz2
@ -59,6 +59,8 @@ Patch1: udisks-2.10.0-static_daemon_resources_free.patch
Patch2: udisks-2.10.0-lvm2_teardown_tests.patch
# https://bugzilla.redhat.com/show_bug.cgi?id=2030916
Patch3: udisks-2.10.0-vdo_test_writeAmplificationRatio.patch
# https://bugzilla.redhat.com/show_bug.cgi?id=2120329
Patch4: udisks-2.10.0-block_format_ata_secure_erase.patch
BuildRequires: make
BuildRequires: glib2-devel >= %{glib2_version}
@ -434,6 +436,9 @@ fi
%endif
%changelog
* Fri Sep 16 2022 Tomas Bzatek <tbzatek@redhat.com> - 2.9.4-4
- Restrict ATA Secure Erase Format() options (#2120329)
* Tue Feb 01 2022 Tomas Bzatek <tbzatek@redhat.com> - 2.9.4-3
- Fix LVM-VDO statistics tests (#2030916)