linux-cve-announce - CVE-2024-56632: nvme-tcp: fix the memleak while create new ctrl failed

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Message-ID: <2024122733-CVE-2024-56632-ea20@gregkh>
Date: Fri, 27 Dec 2024 16:02:33 +0100
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-cve-announce@...r.kernel.org
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Subject: CVE-2024-56632: nvme-tcp: fix the memleak while create new ctrl failed

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

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

nvme-tcp: fix the memleak while create new ctrl failed

Now while we create new ctrl failed, we have not free the
tagset occupied by admin_q, here try to fix it.

The Linux kernel CVE team has assigned CVE-2024-56632 to this issue.


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

	Issue introduced in 6.7 with commit fd1418de10b9ca03d78404cf00a95138689ea369 and fixed in 6.12.5 with commit ceff9ac13a2478afddce85414d404e6aff6425f6
	Issue introduced in 6.7 with commit fd1418de10b9ca03d78404cf00a95138689ea369 and fixed in 6.13-rc2 with commit fec55c29e54d3ca6fe9d7d7d9266098b4514fd34

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-2024-56632
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/nvme/host/tcp.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/ceff9ac13a2478afddce85414d404e6aff6425f6
	https://git.kernel.org/stable/c/fec55c29e54d3ca6fe9d7d7d9266098b4514fd34