linux-kernel - hwmon: (xgene) missing iounmap() and memunmap()

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 for Android: free password hash cracker in your pocket

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

Date:   Fri, 17 Jul 2020 17:50:44 +0300
From:   Evgeny Novikov <novikov@...ras.ru>
To:     Jean Delvare <jdelvare@...e.com>
Cc:     Guenter Roeck <linux@...ck-us.net>, linux-hwmon@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        ldv-project-org <ldv-project@...uxtesting.org>
Subject: hwmon: (xgene) missing iounmap() and memunmap()

xgene_hwmon_probe() invokes ioremap() and memremap() under
certain assumptions, but the driver does not invoke iounmap() and
memunmap() either on probe error handling paths or in
xgene_hwmon_remove().

I assume a patch would be non-trivial while I have not a capability
to test it well.

Found by Linux Driver Verification project (linuxtesting.org).

Signed-off-by: Evgeny Novikov <novikov@...ras.ru>