CVE-2022-49050: memory: renesas-rpc-if: fix platform-device leak in error path

CVE-2022-49050: memory: renesas-rpc-if: fix platform-device leak in error path

[Greg Kroah-Hartman]

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

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

memory: renesas-rpc-if: fix platform-device leak in error path

Make sure to free the flash platform device in the event that
registration fails during probe.

The Linux kernel CVE team has assigned CVE-2022-49050 to this issue.


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

	Issue introduced in 5.9 with commit ca7d8b980b67f133317525c4273e144116ee1ae5 and fixed in 5.10.112 with commit c089ffc846c85f200db34ad208338f4f81a6d82d
	Issue introduced in 5.9 with commit ca7d8b980b67f133317525c4273e144116ee1ae5 and fixed in 5.15.35 with commit 05d1824a7fb43ab9adb1eb82404954af81d8c984
	Issue introduced in 5.9 with commit ca7d8b980b67f133317525c4273e144116ee1ae5 and fixed in 5.17.4 with commit 66b9b707ea4dcafca92b6261c6924652914e3b73
	Issue introduced in 5.9 with commit ca7d8b980b67f133317525c4273e144116ee1ae5 and fixed in 5.18 with commit b452dbf24d7d9a990d70118462925f6ee287d135

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-2022-49050
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/memory/renesas-rpc-if.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/c089ffc846c85f200db34ad208338f4f81a6d82d
	https://git.kernel.org/stable/c/05d1824a7fb43ab9adb1eb82404954af81d8c984
	https://git.kernel.org/stable/c/66b9b707ea4dcafca92b6261c6924652914e3b73
	https://git.kernel.org/stable/c/b452dbf24d7d9a990d70118462925f6ee287d135