linux-cve-announce - CVE-2025-38438: ASoC: SOF: Intel: hda: Use devm

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [day] [month] [year] [list]

Message-ID: <2025072501-CVE-2025-38438-f653@gregkh>
Date: Fri, 25 Jul 2025 17:28:00 +0200
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-cve-announce@...r.kernel.org
Cc: Greg Kroah-Hartman <gregkh@...nel.org>
Subject: CVE-2025-38438: ASoC: SOF: Intel: hda: Use devm_kstrdup() to avoid memleak.

From: Greg Kroah-Hartman <gregkh@...nel.org>

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

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

ASoC: SOF: Intel: hda: Use devm_kstrdup() to avoid memleak.

sof_pdata->tplg_filename can have address allocated by kstrdup()
and can be overwritten. Memory leak was detected with kmemleak:

unreferenced object 0xffff88812391ff60 (size 16):
  comm "kworker/4:1", pid 161, jiffies 4294802931
  hex dump (first 16 bytes):
    73 6f 66 2d 68 64 61 2d 67 65 6e 65 72 69 63 00  sof-hda-generic.
  backtrace (crc 4bf1675c):
    __kmalloc_node_track_caller_noprof+0x49c/0x6b0
    kstrdup+0x46/0xc0
    hda_machine_select.cold+0x1de/0x12cf [snd_sof_intel_hda_generic]
    sof_init_environment+0x16f/0xb50 [snd_sof]
    sof_probe_continue+0x45/0x7c0 [snd_sof]
    sof_probe_work+0x1e/0x40 [snd_sof]
    process_one_work+0x894/0x14b0
    worker_thread+0x5e5/0xfb0
    kthread+0x39d/0x760
    ret_from_fork+0x31/0x70
    ret_from_fork_asm+0x1a/0x30

The Linux kernel CVE team has assigned CVE-2025-38438 to this issue.


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

	Fixed in 6.12.39 with commit 68397fda2caa90e99a7c0bcb2cf604e42ef3b91f
	Fixed in 6.15.7 with commit 58ecf51af12cb32b890858b52b2c34e80590c74a
	Fixed in 6.16-rc4 with commit 6c038b58a2dc5a008c7e7a1297f5aaa4deaaaa7e

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-2025-38438
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/soc/sof/intel/hda.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/68397fda2caa90e99a7c0bcb2cf604e42ef3b91f
	https://git.kernel.org/stable/c/58ecf51af12cb32b890858b52b2c34e80590c74a
	https://git.kernel.org/stable/c/6c038b58a2dc5a008c7e7a1297f5aaa4deaaaa7e