linux-cve-announce - CVE-2022-50120: remoteproc: imx_rproc: Fix refcount leak in imx_rproc_addr

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Message-ID: <2025061811-CVE-2022-50120-992d@gregkh>
Date: Wed, 18 Jun 2025 13:03:05 +0200
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-cve-announce@...r.kernel.org
Cc: Greg Kroah-Hartman <gregkh@...nel.org>
Subject: CVE-2022-50120: remoteproc: imx_rproc: Fix refcount leak in imx_rproc_addr_init

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

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

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

remoteproc: imx_rproc: Fix refcount leak in imx_rproc_addr_init

of_parse_phandle() returns a node pointer with refcount
incremented, we should use of_node_put() on it when not needed anymore.
This function has two paths missing of_node_put().

The Linux kernel CVE team has assigned CVE-2022-50120 to this issue.


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

	Issue introduced in 4.14 with commit a0ff4aa6f010801b2a61c203c6e09d01b110fddf and fixed in 5.15.61 with commit 0dc1663e3fc22c72e1ab33be7701a0d51cca84ef
	Issue introduced in 4.14 with commit a0ff4aa6f010801b2a61c203c6e09d01b110fddf and fixed in 5.18.18 with commit d8ac68927856c3a6d197a95be73c92ec0bd4b012
	Issue introduced in 4.14 with commit a0ff4aa6f010801b2a61c203c6e09d01b110fddf and fixed in 5.19.2 with commit 16da9f84e26f89e58cac194ff19fefd9de27d975
	Issue introduced in 4.14 with commit a0ff4aa6f010801b2a61c203c6e09d01b110fddf and fixed in 6.0 with commit 61afafe8b938bc74841cf4b1a73dd08b9d287c5a

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-2022-50120
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/remoteproc/imx_rproc.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/0dc1663e3fc22c72e1ab33be7701a0d51cca84ef
	https://git.kernel.org/stable/c/d8ac68927856c3a6d197a95be73c92ec0bd4b012
	https://git.kernel.org/stable/c/16da9f84e26f89e58cac194ff19fefd9de27d975
	https://git.kernel.org/stable/c/61afafe8b938bc74841cf4b1a73dd08b9d287c5a