linux-cve-announce - CVE-2024-53117: virtio/vsock: Improve MSG

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Message-ID: <2024120250-CVE-2024-53117-145b@gregkh>
Date: Mon,  2 Dec 2024 14:52:56 +0100
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-cve-announce@...r.kernel.org
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Subject: CVE-2024-53117: virtio/vsock: Improve MSG_ZEROCOPY error handling

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

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

virtio/vsock: Improve MSG_ZEROCOPY error handling

Add a missing kfree_skb() to prevent memory leaks.

The Linux kernel CVE team has assigned CVE-2024-53117 to this issue.


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

	Issue introduced in 6.7 with commit 581512a6dc93 and fixed in 6.11.10 with commit 50061d7319e2
	Issue introduced in 6.7 with commit 581512a6dc93 and fixed in 6.12 with commit 60cf6206a1f5

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-2024-53117
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:
	net/vmw_vsock/virtio_transport_common.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/50061d7319e21165d04e3024354c1b43b6137821
	https://git.kernel.org/stable/c/60cf6206a1f513512f5d73fa4d3dbbcad2e7dcd6