linux-kernel - Re: [PATCH] mips: cdmm: fix use-after-free in mips_cdmm_bus

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: <20201127093341.GC4859@alpha.franken.de>
Date:   Fri, 27 Nov 2020 10:33:41 +0100
From:   Thomas Bogendoerfer <tsbogend@...ha.franken.de>
To:     Qinglang Miao <miaoqinglang@...wei.com>
Cc:     Serge Semin <fancer.lancer@...il.com>, linux-mips@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] mips: cdmm: fix use-after-free in mips_cdmm_bus_discover

On Fri, Nov 20, 2020 at 03:48:47PM +0800, Qinglang Miao wrote:
> kfree(dev) has been called inside put_device so anther
> kfree would cause a use-after-free bug/
> 
> Fixes: 8286ae03308c ("MIPS: Add CDMM bus support")
> Reported-by: Hulk Robot <hulkci@...wei.com>
> Signed-off-by: Qinglang Miao <miaoqinglang@...wei.com>
> ---
>  drivers/bus/mips_cdmm.c | 1 -
>  1 file changed, 1 deletion(-)

applied with braces removal to mips-next.

Thomas.

-- 
Crap can work. Given enough thrust pigs will fly, but it's not necessarily a
good idea.                                                [ RFC1925, 2.3 ]