linux-cve-announce - CVE-2024-50170: net: bcmasp: fix potential memory leak in bcmasp

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Message-ID: <2024110749-CVE-2024-50170-05db@gregkh>
Date: Thu,  7 Nov 2024 10:35:10 +0100
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-cve-announce@...r.kernel.org
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Subject: CVE-2024-50170: net: bcmasp: fix potential memory leak in bcmasp_xmit()

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

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

net: bcmasp: fix potential memory leak in bcmasp_xmit()

The bcmasp_xmit() returns NETDEV_TX_OK without freeing skb
in case of mapping fails, add dev_kfree_skb() to fix it.

The Linux kernel CVE team has assigned CVE-2024-50170 to this issue.


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

	Issue introduced in 6.6 with commit 490cb412007d and fixed in 6.6.59 with commit 7218de0778ae
	Issue introduced in 6.6 with commit 490cb412007d and fixed in 6.11.6 with commit f689f20d3e09
	Issue introduced in 6.6 with commit 490cb412007d and fixed in 6.12-rc4 with commit fed07d3eb8a8

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-2024-50170
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/broadcom/asp2/bcmasp_intf.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/7218de0778aefbbbcfe474a55f88bbf6f244627d
	https://git.kernel.org/stable/c/f689f20d3e09f2d4d0a2c575a9859115a33e68bd
	https://git.kernel.org/stable/c/fed07d3eb8a8d9fcc0e455175a89bc6445d6faed