linux-kernel - zram NULL pointer dereference (zs

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Message-ID: <2f2dd548-c79f-a398-6d11-1d616ec8c57d@gmail.com>
Date:   Thu, 15 Oct 2020 12:11:39 +0200
From:   "David C. Manuelda" <stormbyte@...il.com>
To:     linux-kernel@...r.kernel.org
Subject: zram NULL pointer dereference (zs_malloc)

I found a serious bug about kernel NULL pointer dereference when using 
zram (in my case zram+btrfs) that makes system unstable and usually ends 
in a forced unclean reboot like powering off power source.

This issue is present since >5.8.0 version (this one seems not affected) 
and still present in 5.9.0 and reported in 
https://bugzilla.kernel.org/show_bug.cgi?id=209153

Since this issue seems major enough, can someone please review this issue?

Thanks.

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