CVE-2023-53371: net/mlx5e: fix memory leak in mlx5e_fs_tt_redirect_any_create

CVE-2023-53371: net/mlx5e: fix memory leak in mlx5e_fs_tt_redirect_any_create

[Greg Kroah-Hartman]

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

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

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

net/mlx5e: fix memory leak in mlx5e_fs_tt_redirect_any_create

The memory pointed to by the fs->any pointer is not freed in the error
path of mlx5e_fs_tt_redirect_any_create, which can lead to a memory leak.
Fix by freeing the memory in the error path, thereby making the error path
identical to mlx5e_fs_tt_redirect_any_destroy().

The Linux kernel CVE team has assigned CVE-2023-53371 to this issue.


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

	Issue introduced in 5.13 with commit 0f575c20bf0686caf3d82d6c626c2e1e4a4c36e6 and fixed in 6.1.40 with commit 75df2fe6d160e16be880aacacd521b135d7177c9
	Issue introduced in 5.13 with commit 0f575c20bf0686caf3d82d6c626c2e1e4a4c36e6 and fixed in 6.4.5 with commit 8a75a6f169c3df3a94802314aa61282772ac75b8
	Issue introduced in 5.13 with commit 0f575c20bf0686caf3d82d6c626c2e1e4a4c36e6 and fixed in 6.5 with commit 3250affdc658557a41df9c5fb567723e421f8bf2

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-2023-53371
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/net/ethernet/mellanox/mlx5/core/en/fs_tt_redirect.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/75df2fe6d160e16be880aacacd521b135d7177c9
	https://git.kernel.org/stable/c/8a75a6f169c3df3a94802314aa61282772ac75b8
	https://git.kernel.org/stable/c/3250affdc658557a41df9c5fb567723e421f8bf2