linux-cve-announce - CVE-2022-50326: media: airspy: fix memory leak in airspy probe

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Message-ID: <2025091554-CVE-2022-50326-7ffc@gregkh>
Date: Mon, 15 Sep 2025 16:49:03 +0200
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-cve-announce@...r.kernel.org
Cc: Greg Kroah-Hartman <gregkh@...nel.org>
Subject: CVE-2022-50326: media: airspy: fix memory leak in airspy probe

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

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

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

media: airspy: fix memory leak in airspy probe

The commit ca9dc8d06ab6 ("media: airspy: respect the DMA coherency
 rules") moves variable buf from stack to heap, however, it only frees
buf in the error handling code, missing deallocation in the success
path.

Fix this by freeing buf in the success path since this variable does not
have any references in other code.

The Linux kernel CVE team has assigned CVE-2022-50326 to this issue.


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

	Issue introduced in 6.0 with commit ca9dc8d06ab64543a6a31adac5003349c5671218 and fixed in 6.0.3 with commit f4285dd02b6b2ca3435b65fb62c053dd9408fd71
	Issue introduced in 6.0 with commit ca9dc8d06ab64543a6a31adac5003349c5671218 and fixed in 6.1 with commit 23bc5eb55f8c9607965c20d9ddcc13cb1ae59568

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-2022-50326
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/usb/airspy/airspy.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/f4285dd02b6b2ca3435b65fb62c053dd9408fd71
	https://git.kernel.org/stable/c/23bc5eb55f8c9607965c20d9ddcc13cb1ae59568