linux-cve-announce - CVE-2025-39708: media: iris: Fix NULL pointer dereference

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Message-ID: <2025090549-CVE-2025-39708-a174@gregkh>
Date: Fri,  5 Sep 2025 19:21:21 +0200
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-cve-announce@...r.kernel.org
Cc: Greg Kroah-Hartman <gregkh@...nel.org>
Subject: CVE-2025-39708: media: iris: Fix NULL pointer dereference

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

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

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

media: iris: Fix NULL pointer dereference

A warning reported by smatch indicated a possible null pointer
dereference where one of the arguments to API
"iris_hfi_gen2_handle_system_error" could sometimes be null.

To fix this, add a check to validate that the argument passed is not
null before accessing its members.

The Linux kernel CVE team has assigned CVE-2025-39708 to this issue.


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

	Issue introduced in 6.15 with commit fb583a214337a5600c121c9e1eecbb57fa9db688 and fixed in 6.16.4 with commit 992ddee3c0da5f113ba86892ace467c1ac645538
	Issue introduced in 6.15 with commit fb583a214337a5600c121c9e1eecbb57fa9db688 and fixed in 6.17-rc1 with commit 0f837559ccdd275c5a059e6ac4d5034b03409f1d

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-2025-39708
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/platform/qcom/iris/iris_hfi_gen2_response.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/992ddee3c0da5f113ba86892ace467c1ac645538
	https://git.kernel.org/stable/c/0f837559ccdd275c5a059e6ac4d5034b03409f1d