linux-cve-announce - CVE-2023-53175: PCI: hv: Fix a crash in hv_pci_restore_msi

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite for Android: free password hash cracker in your pocket

[<prev] [next>] [day] [month] [year] [list]

Message-ID: <2025091555-CVE-2023-53175-66fa@gregkh>
Date: Mon, 15 Sep 2025 16:02:29 +0200
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-cve-announce@...r.kernel.org
Cc: Greg Kroah-Hartman <gregkh@...nel.org>
Subject: CVE-2023-53175: PCI: hv: Fix a crash in hv_pci_restore_msi_msg() during hibernation

From: Greg Kroah-Hartman <gregkh@...nel.org>

Description
===========

In the Linux kernel, the following vulnerability has been resolved:

PCI: hv: Fix a crash in hv_pci_restore_msi_msg() during hibernation

When a Linux VM with an assigned PCI device runs on Hyper-V, if the PCI
device driver is not loaded yet (i.e. MSI-X/MSI is not enabled on the
device yet), doing a VM hibernation triggers a panic in
hv_pci_restore_msi_msg() -> msi_lock_descs(&pdev->dev), because
pdev->dev.msi.data is still NULL.

Avoid the panic by checking if MSI-X/MSI is enabled.

The Linux kernel CVE team has assigned CVE-2023-53175 to this issue.


Affected and fixed versions
===========================

	Issue introduced in 5.17 with commit dc2b453290c471266a2d56d7ead981e3c5cea05e and fixed in 6.1.53 with commit 223fc5352054900f70b8b5e10cfc2f297e70c512
	Issue introduced in 5.17 with commit dc2b453290c471266a2d56d7ead981e3c5cea05e and fixed in 6.4.16 with commit d0687755407b21d252b98dca6be459153a60c62a
	Issue introduced in 5.17 with commit dc2b453290c471266a2d56d7ead981e3c5cea05e and fixed in 6.5.3 with commit e32fc2168aa6b477290392ddbb73d95f012b050c
	Issue introduced in 5.17 with commit dc2b453290c471266a2d56d7ead981e3c5cea05e and fixed in 6.6 with commit 04bbe863241a9be7d57fb4cf217ee4a72f480e70

Please see https://www.kernel.org for a full list of currently supported
kernel versions by the kernel community.

Unaffected versions might change over time as fixes are backported to
older supported kernel versions.  The official CVE entry at
	https://cve.org/CVERecord/?id=CVE-2023-53175
will be updated if fixes are backported, please check that for the most
up to date information about this issue.


Affected files
==============

The file(s) affected by this issue are:
	drivers/pci/controller/pci-hyperv.c


Mitigation
==========

The Linux kernel CVE team recommends that you update to the latest
stable kernel version for this, and many other bugfixes.  Individual
changes are never tested alone, but rather are part of a larger kernel
release.  Cherry-picking individual commits is not recommended or
supported by the Linux kernel community at all.  If however, updating to
the latest release is impossible, the individual changes to resolve this
issue can be found at these commits:
	https://git.kernel.org/stable/c/223fc5352054900f70b8b5e10cfc2f297e70c512
	https://git.kernel.org/stable/c/d0687755407b21d252b98dca6be459153a60c62a
	https://git.kernel.org/stable/c/e32fc2168aa6b477290392ddbb73d95f012b050c
	https://git.kernel.org/stable/c/04bbe863241a9be7d57fb4cf217ee4a72f480e70