linux-cve-announce - CVE-2024-53180: ALSA: pcm: Add sanity NULL check for the default mmap fault handler

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Message-ID: <2024122719-CVE-2024-53180-78ed@gregkh>
Date: Fri, 27 Dec 2024 14:52:26 +0100
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-cve-announce@...r.kernel.org
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Subject: CVE-2024-53180: ALSA: pcm: Add sanity NULL check for the default mmap fault handler

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

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

ALSA: pcm: Add sanity NULL check for the default mmap fault handler

A driver might allow the mmap access before initializing its
runtime->dma_area properly.  Add a proper NULL check before passing to
virt_to_page() for avoiding a panic.

The Linux kernel CVE team has assigned CVE-2024-53180 to this issue.


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

	Fixed in 5.15.174 with commit 8799f4332a9fd812eadfbc32fc5104d6292f754f
	Fixed in 6.1.120 with commit 832efbb74b1578e3737d593a204d42af8bd1b81b
	Fixed in 6.6.64 with commit bc200027ee92fba84f1826494735ed675f3aa911
	Fixed in 6.11.11 with commit f0ce9e24eff1678c16276f9717f26a78202506a2
	Fixed in 6.12.2 with commit 0c4c9bf5eab7bee6b606f2abb0993e933b5831a0
	Fixed in 6.13-rc1 with commit d2913a07d9037fe7aed4b7e680684163eaed6bc4

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-2024-53180
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:
	sound/core/pcm_native.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/8799f4332a9fd812eadfbc32fc5104d6292f754f
	https://git.kernel.org/stable/c/832efbb74b1578e3737d593a204d42af8bd1b81b
	https://git.kernel.org/stable/c/bc200027ee92fba84f1826494735ed675f3aa911
	https://git.kernel.org/stable/c/f0ce9e24eff1678c16276f9717f26a78202506a2
	https://git.kernel.org/stable/c/0c4c9bf5eab7bee6b606f2abb0993e933b5831a0
	https://git.kernel.org/stable/c/d2913a07d9037fe7aed4b7e680684163eaed6bc4