linux-cve-announce - CVE-2024-57987: Bluetooth: btrtl: check for NULL in btrtl_setup

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Message-ID: <2025022637-CVE-2024-57987-09a3@gregkh>
Date: Wed, 26 Feb 2025 18:05:46 -0800
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-cve-announce@...r.kernel.org
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Subject: CVE-2024-57987: Bluetooth: btrtl: check for NULL in btrtl_setup_realtek()

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

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

Bluetooth: btrtl: check for NULL in btrtl_setup_realtek()

If insert an USB dongle which chip is not maintained in ic_id_table, it
will hit the NULL point accessed. Add a null point check to avoid the
Kernel Oops.

The Linux kernel CVE team has assigned CVE-2024-57987 to this issue.


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

	Issue introduced in 6.10 with commit b39910bb54d9ff696caaed4e83ae92a798cd8bf8 and fixed in 6.12.13 with commit 1158ad8e8abb361d4b2aaa010c9af74de20ab82b
	Issue introduced in 6.10 with commit b39910bb54d9ff696caaed4e83ae92a798cd8bf8 and fixed in 6.13.2 with commit 02f9da874e5e4626f81772eacc18967921998a71
	Issue introduced in 6.10 with commit b39910bb54d9ff696caaed4e83ae92a798cd8bf8 and fixed in 6.14-rc1 with commit 3c15082f3567032d196e8760753373332508c2ca

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-2024-57987
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/bluetooth/btrtl.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/1158ad8e8abb361d4b2aaa010c9af74de20ab82b
	https://git.kernel.org/stable/c/02f9da874e5e4626f81772eacc18967921998a71
	https://git.kernel.org/stable/c/3c15082f3567032d196e8760753373332508c2ca