linux-cve-announce - CVE-2025-38507: HID: nintendo: avoid bluetooth suspend/resume stalls

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Message-ID: <2025081650-CVE-2025-38507-fb6a@gregkh>
Date: Sat, 16 Aug 2025 12:57:49 +0200
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-cve-announce@...r.kernel.org
Cc: Greg Kroah-Hartman <gregkh@...nel.org>
Subject: CVE-2025-38507: HID: nintendo: avoid bluetooth suspend/resume stalls

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

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

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

HID: nintendo: avoid bluetooth suspend/resume stalls

Ensure we don't stall or panic the kernel when using bluetooth-connected
controllers. This was reported as an issue on android devices using
kernel 6.6 due to the resume hook which had been added for usb joycons.

First, set a new state value to JOYCON_CTLR_STATE_SUSPENDED in a
newly-added nintendo_hid_suspend. This makes sure we will not stall out
the kernel waiting for input reports during led classdev suspend. The
stalls could happen if connectivity is unreliable or lost to the
controller prior to suspend.

Second, since we lose connectivity during suspend, do not try
joycon_init() for bluetooth controllers in the nintendo_hid_resume path.

Tested via multiple suspend/resume flows when using the controller both
in USB and bluetooth modes.

The Linux kernel CVE team has assigned CVE-2025-38507 to this issue.

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

	Fixed in 6.12.39 with commit 7b4a026313529a487821ef6ab494a61f12c1db08
	Fixed in 6.15.7 with commit 72cb7eef06a5cde42b324dea85fa11fd5bb6a08a
	Fixed in 6.16 with commit 4a0381080397e77792a5168069f174d3e56175ff

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-2025-38507
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/hid/hid-nintendo.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/7b4a026313529a487821ef6ab494a61f12c1db08
	https://git.kernel.org/stable/c/72cb7eef06a5cde42b324dea85fa11fd5bb6a08a
	https://git.kernel.org/stable/c/4a0381080397e77792a5168069f174d3e56175ff