netdev - Re: [PATCH] bnx2x: fix possible panic under memory stress

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]

Date:	Tue, 01 Jul 2014 12:20:48 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	eric.dumazet@...il.com
Cc:	netdev@...r.kernel.org, walken@...gle.com, ariel.elior@...gic.com
Subject: Re: [PATCH] bnx2x: fix possible panic under memory stress

From: Eric Dumazet <eric.dumazet@...il.com>
Date: Thu, 26 Jun 2014 00:44:02 -0700

> From: Eric Dumazet <edumazet@...gle.com>
> 
> While it is legal to kfree(NULL), it is not wise to use :
> put_page(virt_to_head_page(NULL))
> 
>  BUG: unable to handle kernel paging request at ffffeba400000000
>  IP: [<ffffffffc01f5928>] virt_to_head_page+0x36/0x44 [bnx2x]
> 
> Reported-by: Michel Lespinasse <walken@...gle.com>
> Signed-off-by: Eric Dumazet <edumazet@...gle.com>
> Cc: Ariel Elior <ariel.elior@...gic.com>
> Fixes: d46d132cc021 ("bnx2x: use netdev_alloc_frag()")
> ---
> This is a stable candidate, bug added in linux-3.8

Applied and queued up for -stable, thanks.
--
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html