linux-cve-announce - CVE-2024-56680: media: intel/ipu6: do not handle interrupts when device is disabled

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: <2024122832-CVE-2024-56680-fac9@gregkh>
Date: Sat, 28 Dec 2024 10:45:32 +0100
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-cve-announce@...r.kernel.org
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Subject: CVE-2024-56680: media: intel/ipu6: do not handle interrupts when device is disabled

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

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

media: intel/ipu6: do not handle interrupts when device is disabled

Some IPU6 devices have shared interrupts. We need to handle properly
case when interrupt is triggered from other device on shared irq line
and IPU6 itself disabled. In such case we get 0xffffffff from
ISR_STATUS register and handle all irq's cases, for what we are not
not prepared and usually hang the whole system.

To avoid the issue use pm_runtime_get_if_active() to check if
the device is enabled and prevent suspending it when we handle irq
until the end of irq. Additionally use synchronize_irq() in suspend

The Linux kernel CVE team has assigned CVE-2024-56680 to this issue.


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

	Issue introduced in 6.10 with commit ab29a2478e709b8fbb4715c51709275907c185db and fixed in 6.11.11 with commit ed4524c87249edc3104f6bb28ab11325bed3d536
	Issue introduced in 6.10 with commit ab29a2478e709b8fbb4715c51709275907c185db and fixed in 6.12.2 with commit 57241487a3648515c9aa6fa89e31f2414eccfdbc
	Issue introduced in 6.10 with commit ab29a2478e709b8fbb4715c51709275907c185db and fixed in 6.13-rc1 with commit 1429826883bb18847092b2e04c6598ef34bae1d4

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-2024-56680
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/media/pci/intel/ipu6/ipu6-buttress.c
	drivers/media/pci/intel/ipu6/ipu6.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/ed4524c87249edc3104f6bb28ab11325bed3d536
	https://git.kernel.org/stable/c/57241487a3648515c9aa6fa89e31f2414eccfdbc
	https://git.kernel.org/stable/c/1429826883bb18847092b2e04c6598ef34bae1d4