linux-kernel - Re: [PATCH] Update creation of flash_block

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: <87il8yzxqa.fsf@li-e15d104c-2135-11b2-a85c-d7ef17e56be6.ibm.com>
Date:   Mon, 28 Aug 2023 16:02:53 -0500
From:   Nathan Lynch <nathanl@...ux.ibm.com>
To:     Audra Mitchell <aubaker@...hat.com>, linuxppc-dev@...ts.ozlabs.org
Cc:     linux-kernel@...r.kernel.org, linux-hardening@...r.kernel.org,
        aubaker@...hat.com, keescook@...omium.org,
        christophe.leroy@...roup.eu, npiggin@...il.com, mpe@...erman.id.au
Subject: Re: [PATCH] Update creation of flash_block_cache to accout for
 potential panic

Audra Mitchell <aubaker@...hat.com> writes:
> With PPC builds enabling CONFIG_HARDENED_USERCOPY, interacting with the RunTime
> Abstraction Services (RTAS) firmware by writing to
> /proc/powerpc/rtas/firmware_flash will end up triggering the mm/usercopy.c:101
> assertion:

Thanks, this was fixed already:

4f3175979e62 "powerpc/rtas_flash: allow user copy to flash block cache objects"