CVE-2021-47043: media: venus: core: Fix some resource leaks in the error path of 'venus_probe()'

CVE-2021-47043: media: venus: core: Fix some resource leaks in the error path of 'venus_probe()'

[Greg Kroah-Hartman]

From: gregkh@kernel.org

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

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

media: venus: core: Fix some resource leaks in the error path of 'venus_probe()'

If an error occurs after a successful 'of_icc_get()' call, it must be
undone.

Use 'devm_of_icc_get()' instead of 'of_icc_get()' to avoid the leak.
Update the remove function accordingly and axe the now unneeded
'icc_put()' calls.

The Linux kernel CVE team has assigned CVE-2021-47043 to this issue.


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

	Issue introduced in 5.5 with commit 32f0a6ddc8c9 and fixed in 5.10.37 with commit 00b68a747834
	Issue introduced in 5.5 with commit 32f0a6ddc8c9 and fixed in 5.11.21 with commit 940d01eceb3a
	Issue introduced in 5.5 with commit 32f0a6ddc8c9 and fixed in 5.12.4 with commit 711acdf0228d
	Issue introduced in 5.5 with commit 32f0a6ddc8c9 and fixed in 5.13 with commit 5a465c5391a8

Please see https://www.kernel.org or 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-2021-47043
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/platform/qcom/venus/core.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/00b68a7478343afdf83f30c43e64db5296057030
	https://git.kernel.org/stable/c/940d01eceb3a7866fbfca136a55a5625fc75a565
	https://git.kernel.org/stable/c/711acdf0228dc71601247f28b56f13e850e395c8
	https://git.kernel.org/stable/c/5a465c5391a856a0c1e9554964d660676c35d1b2