linux-cve-announce - CVE-2023-53404: USB: fotg210: fix memory leak with using debugfs

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Message-ID: <2025091800-CVE-2023-53404-29f4@gregkh>
Date: Thu, 18 Sep 2025 15:59:01 +0200
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-cve-announce@...r.kernel.org
Cc: Greg Kroah-Hartman <gregkh@...nel.org>
Subject: CVE-2023-53404: USB: fotg210: fix memory leak with using debugfs_lookup()

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

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

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

USB: fotg210: fix memory leak with using debugfs_lookup()

When calling debugfs_lookup() the result must have dput() called on it,
otherwise the memory will leak over time.  To make things simpler, just
call debugfs_lookup_and_remove() instead which handles all of the logic
at once.

The Linux kernel CVE team has assigned CVE-2023-53404 to this issue.


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

	Fixed in 5.15.100 with commit 4a71b15744b8f286718722f80b663c06ed909d8a
	Fixed in 6.1.18 with commit 7d2d3bef6d700eb4261fb6761de2c95a9e3c0ac8
	Fixed in 6.2.5 with commit 55c2ffc534928f4732199617e3b746d79a57898f
	Fixed in 6.3 with commit 6b4040f452037a7e95472577891d57c6b18c89c5

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-2023-53404
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/usb/fotg210/fotg210-hcd.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/4a71b15744b8f286718722f80b663c06ed909d8a
	https://git.kernel.org/stable/c/7d2d3bef6d700eb4261fb6761de2c95a9e3c0ac8
	https://git.kernel.org/stable/c/55c2ffc534928f4732199617e3b746d79a57898f
	https://git.kernel.org/stable/c/6b4040f452037a7e95472577891d57c6b18c89c5