linux-kernel - Re: [PATCH] mfd: macsmc: Initialize mutex

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>] [<thread-prev] [day] [month] [year] [list]

Message-ID: <1bc9a4b3-7a8d-4bcf-9481-36fdc76e066c@web.de>
Date: Sat, 27 Sep 2025 15:57:36 +0200
From: Markus Elfring <Markus.Elfring@....de>
To: Janne Grunau <j@...nau.net>, asahi@...ts.linux.dev,
 linux-arm-kernel@...ts.infradead.org
Cc: LKML <linux-kernel@...r.kernel.org>, Lee Jones <lee@...nel.org>,
 Neal Gompa <neal@...pa.dev>, Sven Peter <sven@...nel.org>
Subject: Re: [PATCH] mfd: macsmc: Initialize mutex

> Struct apple_smc's mutex was not initialized before use. Surprisingly
> this only resulted in occasional NULL pointer dereferences in
> apple_smc_read() calls from the probe() functions of sub devices.

See also:
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/Documentation/process/submitting-patches.rst?h=v6.17-rc7#n94

Regards,
Markus