linux-cve-announce - CVE-2023-53416: USB: isp1362: fix memory leak with using debugfs

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Message-ID: <2025091802-CVE-2023-53416-a008@gregkh>
Date: Thu, 18 Sep 2025 15:59:13 +0200
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-cve-announce@...r.kernel.org
Cc: Greg Kroah-Hartman <gregkh@...nel.org>
Subject: CVE-2023-53416: USB: isp1362: 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: isp1362: 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-2023-53416 to this issue.


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

	Fixed in 5.15.100 with commit fb284bee1e213c94be9131d1aca7c16bd6ba259d
	Fixed in 6.1.18 with commit b0a8195a84a725ca7936c213b5e056d2a3ab2a94
	Fixed in 6.2.5 with commit 9d537c35e48feba9d450acca0ff14a55ce1ec450
	Fixed in 6.3 with commit c26e682afc14caa87d44beed271eec8991e93c65

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-2023-53416
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/host/isp1362-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/fb284bee1e213c94be9131d1aca7c16bd6ba259d
	https://git.kernel.org/stable/c/b0a8195a84a725ca7936c213b5e056d2a3ab2a94
	https://git.kernel.org/stable/c/9d537c35e48feba9d450acca0ff14a55ce1ec450
	https://git.kernel.org/stable/c/c26e682afc14caa87d44beed271eec8991e93c65