linux-cve-announce - CVE-2024-43884: Bluetooth: MGMT: Add error handling to pair

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Message-ID: <2024082621-CVE-2024-43884-43fa@gregkh>
Date: Mon, 26 Aug 2024 09:12:22 +0200
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-cve-announce@...r.kernel.org
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Subject: CVE-2024-43884: Bluetooth: MGMT: Add error handling to pair_device()

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

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

Bluetooth: MGMT: Add error handling to pair_device()

hci_conn_params_add() never checks for a NULL value and could lead to a NULL
pointer dereference causing a crash.

Fixed by adding error handling in the function.

The Linux kernel CVE team has assigned CVE-2024-43884 to this issue.


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

	Issue introduced in 4.3 with commit 5157b8a503fa and fixed in 6.11-rc5 with commit 538fd3921afa

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-2024-43884
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/bluetooth/mgmt.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/538fd3921afac97158d4177139a0ad39f056dbb2