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* Tue Sep 02 2025 Tomas Bzatek <tbzatek@redhat.com> - 2.9.4-12

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- udiskslinuxmanager: Add lower bounds check to fd_index (CVE-2025-8067)

Resolves: RHEL-109413
This commit is contained in:
Tomas Bzatek 2025-09-02 17:23:07 +02:00
parent a49c9510f6
commit ceddd09321
2 changed files with 36 additions and 1 deletions
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29
udisks-2.10.91-manager_loopsetup_fd_bounds.patch Normal file
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@ -0,0 +1,29 @@
From 55e36ef2af4fbfc92aab5cef50a69123e321f9f1 Mon Sep 17 00:00:00 2001
From: Marc Deslauriers <marc.deslauriers@canonical.com>
Date: Tue, 15 Jul 2025 13:34:08 -0400
Subject: [PATCH 1/1] udiskslinuxmanager: Add lower bounds check to fd_index
Make sure fd_index isn't negative as this can lead to an OOB read
resulting in a crash, or to exposing internal file descriptors.
Reported by Michael Imfeld (born0monday).
---
src/udiskslinuxmanager.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/src/udiskslinuxmanager.c b/src/udiskslinuxmanager.c
index 4e633284..887771ee 100644
--- a/src/udiskslinuxmanager.c
+++ b/src/udiskslinuxmanager.c
@@ -381,7 +381,7 @@ handle_loop_setup (UDisksManager *object,
goto out;
fd_num = g_variant_get_handle (fd_index);
- if (fd_list == NULL || fd_num >= g_unix_fd_list_get_length (fd_list))
+ if (fd_list == NULL || fd_num < 0 || fd_num >= g_unix_fd_list_get_length (fd_list))
{
g_dbus_method_invocation_return_error (invocation,
UDISKS_ERROR,
--
2.43.0

8
udisks2.spec
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@ -48,7 +48,7 @@
Name: udisks2
Summary: Disk Manager
Version: 2.9.4
Release: 11%{?dist}
Release: 12%{?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
@ -90,6 +90,9 @@ Patch22: udisks-2.11.0-targetcli_config_attr_fix.patch
# https://issues.redhat.com/browse/RHEL-8031
Patch23: udisks-2.11.0-lvm2_refactor_wipe.patch
Patch24: udisks-2.11.0-BLKRRPART-harder.patch
# https://issues.redhat.com/browse/RHEL-109413
Patch25: udisks-2.10.91-manager_loopsetup_fd_bounds.patch
BuildRequires: make
BuildRequires: glib2-devel >= %{glib2_version}
@ -465,6 +468,9 @@ fi
%endif
%changelog
* Tue Sep 02 2025 Tomas Bzatek <tbzatek@redhat.com> - 2.9.4-12
- udiskslinuxmanager: Add lower bounds check to fd_index (CVE-2025-8067) (RHEL-109413)
* Wed May 15 2024 Tomas Bzatek <tbzatek@redhat.com> - 2.9.4-11
- udiskslinuxblockobject: Try issuing BLKRRPART ioctl harder
- lvm2: Refactor udisks_daemon_util_lvm2_wipe_block()